HaPpY nEw YeAr 2011

Wishing you all a Happy & Prosperous New Year 2011...

Display Errors and Log errors in PHP

HTACCESS code to display errors(i.e Warnings & Fatal Errors) while running a PHP file in server is shown below.

php_flag display_errors off

HTACCESS code to log errors in Log file is php_flag log_errors. To off the Log files in the server we need to write the HTACCESS code as shown below.

php_flag log_errors off


To off the Errors displayed & also to OFF the log files the following HTACCESS code is used.


Options +FollowSymlinks
php_flag display_errors off 
php_flag log_errors off


    

Sending Mails with Attachment in PHP

Here is the code for sending for mails with Attachments in PHP.

$email_from = "Anil Kumar"; // Who the email is from
$email_subject = "Email with Attachment"; // The Subject of the email
$email_message = "Is the File Attached."; // Message that the email has in it

$email_to = "anilbuddha@gmail.com"; // Who the email is too

$headers = "From: ".$email_from;


$semi_rand = md5(time());
$mime_boundary = "==Multipart_Boundary_x{$semi_rand}x";

$headers .= "\nMIME-Version: 1.0\n" .
"Content-Type: multipart/mixed;\n" .
" boundary=\"{$mime_boundary}\"";

$email_message .= "This is a multi-part message in MIME format.\n\n" .
"--{$mime_boundary}\n" .
"Content-Type:text/html; charset=\"iso-8859-1\"\n" .
"Content-Transfer-Encoding: 7bit\n\n" .
$email_message . "\n\n";

/********************************************** First File ********************************************/


$fileatt = "../reports/users.pdf"; // Path to the file
$fileatt_type = "application/pdf"; // File Type
$fileatt_name = "users"; // Filename that will be used for the file as the attachment

$file = fopen($fileatt,'rb');
$data = fread($file,filesize($fileatt));
fclose($file);


$data = chunk_split(base64_encode($data));

$email_message .= "--{$mime_boundary}\n" .
"Content-Type: {$fileatt_type};\n" .
" name=\"{$fileatt_name}\"\n" .
//"Content-Disposition: attachment;\n" .
//" filename=\"{$fileatt_name}\"\n" .
"Content-Transfer-Encoding: base64\n\n" .
$data . "\n\n" .
"--{$mime_boundary}\n";
unset($data);
unset($file);
unset($fileatt);
unset($fileatt_type);
unset($fileatt_name);
$ok = mail($email_to, $email_subject, $email_message, $headers);

if($ok) {
echo "Email With Attachment has been Sent Successfully";
} else {
echo "Sending Email with Attachment has Failed. Please check the Code Added";
}

Birthday in my Office

My Birthday Celebrations in My office..............

 

Upload Large Files with PHP

When we want to upload large files in PHP we would be changing the file max size limit in PHP ini file.

This can be done in our local system but when we need this is in Server where our Project is maintained it is not possible. So here is the Rewrite Rule in HTACCESS for PHP where we can change the maximum file size limit.

Rewrite Rule for Maximum File size is shown below.

php_value upload_max_filesize 20M

   

HTACCESS code to run PHP in HTML file

Using HTACCESS we can run the PHP code in an HTML file.

The REWRITE rule to write in HTACCESS file is shown below.

 AddType application/x-httpd-php .html .htm

Date Validation using Javascript

Here is the validation for date using javascript.

var dtCh= "/";
var minYear=1900;
var maxYear=2100;

function isInteger(s){
    var i;
    for (i = 0; i < s.length; i++){  
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}

function stripCharsInBag(s, bag){
    var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++){  
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function daysInFebruary (year){
    // February has 29 days in any year evenly divisible by four,
    // EXCEPT for centurial years which are not also divisible by 400.
    return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
}
function DaysArray(n) {
    for (var i = 1; i <= n; i++) {
        this[i] = 31;
        if (i==4 || i==6 || i==9 || i==11) {this[i] = 30;}
        if (i==2){this[i] = 29;}
   }
   return this;
}

function isDate(dtStr){
    var daysInMonth = DaysArray(12);
    var pos1=dtStr.indexOf(dtCh);
    var pos2=dtStr.indexOf(dtCh,pos1+1);
    var strMonth=dtStr.substring(0,pos1);
    var strDay=dtStr.substring(pos1+1,pos2);
    var strYear=dtStr.substring(pos2+1);
    strYr=strYear;
    if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1);
    if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1);
    for (var i = 1; i <= 3; i++) {
        if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1);
    }
    month=parseInt(strMonth);
    day=parseInt(strDay);
    year=parseInt(strYr);
    if (pos1==-1 || pos2==-1){
        alert("The date format should be : mm/dd/yyyy");
        return false;
    }
    if (strMonth.length<1 || month<1 || month>12){
        alert("Please enter a valid month");
        document.form1.month.focus();
        return false;
    }
    if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
        alert("Please enter a valid day");
        document.form1.day.focus();
        return false;
    }
    if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
        alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear);
        return false;
    }
    if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
        alert("Please enter a valid date");
        return false;
    }
    return true;
}

To check the given string is a Date or not, the date format should be checked as shown below.

var dt = document.form1.month.value +'/' +document.form1.day.value +'/'+ document.form1.year.value;
    if (isDate(dt)==false){
        return false;
    }

The date format to be passed is MM/DD/YYYY.

     

Rewrite condition for domain.com to www.domain.com using HTACCESS

Redirecting from domain.com to www.domain.com is mostly helpful as part of SEO. The rule for rewriting the site is shown below.

rewritecond %{http_host} ^domain.com [nc]
rewriterule ^(.*)$ http://www.domain.com/$1 [r=301,nc]

Just change the domain name to your site name to use the rewrite rule.

  

Maryada Ramana MP3 Ringtone

The latest mp3 background music from Maryada Ramana. Download it

Click Here to Download the ringtone.

   

Get the Meta Content using Javascript

Here is the code for retrieving the Meta Keywords, Description using Javascript.

var destination = window.location.href;
var meta_title = '',meta_description = '';
       var meta = document.getElementsByTagName("meta");
       for( var x in meta )
       {
               if(/^title$/i.test(meta[x]["name"]))
                       meta_title = meta[x]["content"];
               if(/^description$/i.test(meta[x]["name"]))
                       meta_description = meta[x]["content"];
       }

PHP Interview Questions and Answers

Here are some of the PHP interview Questions with answers which may help you.

1. What are the differences between GET and POST methods in form submitting, give the case where we can use get and we can use post methods?
Answer: On the server side, the main difference between GET and POST is where the submitted is stored. The $_GET array stores data submitted by the GET method. The $_POST array stores data submitted by the POST method.
On the browser side, the difference is that data submitted by the GET method will be displayed in the browser's address field. Data submitted by the POST method will not be displayed anywhere on the browser.
GET method is mostly used for submitting a small amount and less sensitive data. POST method is mostly used for submitting a large amount or sensitive data.


2. Who is the father of php and explain the changes in php versions?
Answer:  Rasmus Lerdorf for version changes go to http://php.net/
Marco Tabini is the founder and publisher of php|architect.

3. How can we submit from without a submit button?
Answer: We can use a simple JavaScript code linked to an event trigger of any form field.
In the JavaScript code, we can call the document.form.submit() function to submit the form.

 4. How many ways we can retrieve the date in result set of mysql Using php?
Answer: As individual objects so single record or as a set or arrays.

5. What is the difference between mysql_fetch_object and mysql_fetch_array?
Answer:  MySQL fetch object will collect first single matching record where mysql_fetch_array will collect all matching records from the table in an array.

6. What is the difference between $message and $$message?
Answer: They are both variables. But $message is a variable with a fixed name. $$message is a variable who's name is stored in $message. For example, if $message contains "var", $$message is the same as $var.

7. How can we extract string 'abc.com ' from a string 'http://info@a...' using regular _expression of php?
Answer: We can use the preg_match() function with "/.*@(.*)$/" as
the regular expression pattern. For example:
preg_match("/.*@(.*)$/","http://info@abc.com",$data);
echo $data[1];

8. How can we create a database using php and mysql?
Answer: PHP: mysql_create_db()
Mysql: create database;

9. What are the differences between require and include, include_once?
Answer: File will not be included more than once. If we want to include a file once only and further calling of the file will be ignored then we have to use the PHP function include_once(). This will prevent problems with function redefinitions, variable value reassignments, etc.

10. Can we use include ("abc.php") two times in a php page "makeit.php"?
Answer: Yes we can include..

11. What are the different tables present in mysql, which type of table is generated when we are creating a table in the following
syntax: create table employee(eno int(2),ename varchar(10)) ?
Answer: Total 5 types of tables we can create
1. MyISAM
2. Heap
3. Merge
4. InnoDB
5. ISAM
6. BDB
MyISAM is the default storage engine as of MySQL 3.23.

12. Functions in IMAP, POP3 AND LDAP?
Answer:  Please visit:
http://fi2.php.net/imap
http://uk2.php.net/ldap

13. How can I execute a php script using command line?
Answer: Just run the PHP CLI (Command Line Interface) program and provide the PHP script file name as the command line argument. For example, "php myScript.php", assuming "php" is the command to invoke the CLI program. Be aware that if your PHP script was written for the Web CGI interface, it may not execute properly in command line environment.

14. Suppose your ZEND engine supports the mode <? ?> Then how can u configure your php ZEND engine to support <?php ?> mode ?
Answer: If you change the line: short_open_tag = off in php.ini file. Then your php ZEND engine support only <?php ?> mode.

15. Shopping cart online validation i.e. how can we configure the paypals?

16. What is meant by nl2br()?
Answer: nl2br -- Inserts HTML line breaks before all newlines in a string
string nl2br (string); Returns string with '<br />' inserted before all newlines.
For example: echo nl2br("god bless\n you") will output "god bless
\n you" to your browser.

More Interview Questions, Download the document, Click Here for PHP interview Question

For Free Download,Click Here

80's South Indian Film Stars

Hi Friends,

Here is the pic taken of the 80's South Indian Film Stars when they united in a special get together event held on Aug 29 (i.e. Sunday) night in Chennai. The event organised by Suhasini Maniratnam and hosted by Lissy Priyadarshan.

 All together the event was attended by around 29 actors and was called as Evergreen 80s. From the Telugu industry, Chiranjeevi, Venkatesh, Bhanuchandar, Naresh, Suresh, Ramya krishna and Suman were present. From the Tamil industry, the actors attended the event were superstar Rajnikanth, Sharat Kumar, Arjun, Mohan, Karthik, Prabhu, Suhasini, Radhika, Poornima, Radha, Kushbu, Ambika and Nadiya. From the Malayalam, Mohan Lal and Shobhan were present while from Kannada industry, Sumalatha and Ambarish attended the event.

This is nice to see all the south Indian film stars in a single pic.

Download the pic, here is the link for download, Click here

Joomla - Most popular open source

Joomla, is the most popular open source software in PHP. It is free for publishing. It uses PHP for coding & MySQL for storage i.e. Database.

Want to learn Joomla, & publish the Site. Here is the free tutorial. Download Joomla Tutorial & have a fun learning.

For download, Click Here














 

HTACCESS code to redirect to 404 page

htaccess in Linux server is used for rewriting the URL & also used for redirecting to a Pre-defined error page(404 error page) when there is no file or page in the site.

Here is the rule for redirecting to Error page(404 page -- i.e. Page Not found)

Ex;- ErrorDocument 404 http://www.yoursitename.com/error404.php

Ex:- ErrorDocument 404 http://www.yoursitename.com/error404.html

we can define any filename for redirecting, in the above example, I've given an error404.php or error404.html as examples

Function for taking MySQL Backup in PHP

Here is the function for taking backup of a MySQL database without any external tool for MySQL.

$host ---> Hostname
$user ----> Username
$pass ----> Password
$name ----> Database name
If we need the total database, just put the value of $tables as * or else pass only the tables you want with comma separated.

function backup_tables($host,$user,$pass,$name,$tables = '*')
{

 $link = mysql_connect($host,$user,$pass);
 mysql_select_db($name,$link);

 //get all of the tables
 if($tables == '*')
 {
 $tables = array();
 $result = mysql_query('SHOW TABLES');
 while($row = mysql_fetch_row($result))
 {
 $tables[] = $row[0];
 }
 }
 else
 {
 $tables = is_array($tables) ? $tables : explode(',',$tables);
 }

 //cycle through
 foreach($tables as $table)
 {
 $result = mysql_query('SELECT * FROM '.$table);
 $num_fields = mysql_num_fields($result);

 //$return.= 'DROP TABLE '.$table.';';
 $row2 = mysql_fetch_row(mysql_query('SHOW CREATE TABLE '.$table));
 $return.= "\n\n".$row2[1].";\n\n";

 for ($i = 0; $i < $num_fields; $i++)
 {
 while($row = mysql_fetch_row($result))
 {
 $return.= 'INSERT INTO '.$table.' VALUES(';
 for($j=0; $j<$num_fields; $j++)
 {
 $row[$j] = addslashes($row[$j]);
 $row[$j] = ereg_replace("\n","\\n",$row[$j]);
 if (isset($row[$j])) { $return.= '"'.$row[$j].'"' ; } else { $return.= '""'; }
 if ($j<($num_fields-1)) { $return.= ','; }
 }
 $return.= ");\n";
 }
 }
 $return.="\n\n\n";
 }
$s_file = 'db-backup-'.time().'-'.'.sql';
 //save file
 $handle = fopen($s_file,'w+');
 fwrite($handle,$return);
 fclose($handle);
 header("Location:".$s_file);
 exit;
}

Download PHP Manual

PHP is the powerful server side scripting language, popularly known as Hypertext Preprocessor.

PHP is also called as Personal Home Page.

Download the PHP Manual here. For Free Download, Click Here

Download MySQL Tutorial

Here is PDF document for MySQL Tutorial...

MySQL is the world's most popular open source database because of its fast performance, high reliability, ease of use, and dramatic cost savings. Want to learn MySQL, download the pdf document & enhance your database skills..

Free Download, Click Here

Happy Independence Day

Wish you all a Happy Independence Day........

Post your Status in Twitter using PHP

t$twitter_api_url = "http://twitter.com/statuses/update.xml";
$twitter_data = "status=Visit http://anilkajadoo.blogspot.com/ for PHP tips and tutorials!";
$twitter_user = "your_user_name";
$twitter_password = "your_password";

The $twitter_data variable contains the message to be posted to Twitter, which you must ensure is 140 characters or less before posting. You could use strlen() function to do so when you ready the data to be sent, and truncate it if it’s too long by using substr() function. The status= before the message is the POST variable, the parameter for the API.


To send the request, we will use cURL, which is included on most servers. First we initiate cURL and pass it the URL we will be sending the request to:

$ch = curl_init($twitter_api_url);

curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $twitter_data);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_USERPWD, "{$twitter_user}:{$twitter_password}");//Twitter Username & Password are used to post the status


$twitter_data = curl_exec($ch);
$httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);

All that’s left really is to see whether it worked or not. Since we have our handy $httpcode variable, we can just run a conditional statement to see if the response code is equal to 200 (which means everything went okay).

if ($httpcode != 200) {
     echo "The tweet wasn't posted correctly. ";
}

         

Create a Tiny URL using PHP

Function to create a tiny URL for the site using PHP....


function get_tiny_url($url){
    $ch = curl_init();
    $timeout = 5;
    curl_setopt($ch,CURLOPT_URL,'http://tinyurl.com/api-create.php?url='.$url);
    curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
    curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,$timeout);
    $data = curl_exec($ch);
    curl_close($ch);
    return $data;
}

//Test the Function.......

$new_url = get_tiny_url('http://anilkajadoo.blogspot.com/');

//The tinyURL has been generated & just print it below
echo $new_url;


       

Wish My Brother a Happy Birthday

Wishing a Happy Birthday to My Brother

Get the Page title of a webpage using PHP

Below is the function for getting the Title of the webpage using PHP

function getMetaTitle($content){
$pattern = "|<[\s]*title[\s]*>([^<]+)<[\s]*/[\s]*title[\s]*>|Ui";
if(preg_match($pattern, $content, $match))
return $match[1];
else
return false;
}

$url = $siteurl; //Enter the Site URL which we want to get the Page Title
$content = file_get_contents($url);
$title = getMetaTitle($content);
$tags = get_meta_tags($siteurl); // To get the meta content, description, keywords of the given URL....


$tags is a array of all meta data
To get the Meta Keywords, Description we will use the get_meta_tags which is a predefined function in PHP. To retrieve the values we need to use $tags['keywords'] for Keywords & for Description $tag['description']


 

Check Domain availability Using PHP

How to Check Domain Availability using PHP


<?php

function checkDomainAvailability($domain_name){

$server = 'whois.crsnic.net';

// Open a socket connection to the whois server
$connection = fsockopen($server, 43);
if (!$connection) return false;

// Send the requested doman name
fputs($connection, $domain_name."\r\n");

// Read and store the server response
$response_text = ' :';
while(!feof($connection)) {
$response_text .= fgets($connection,128);
}

// Close the connection
fclose($connection);

// Check the response stream whether the domain is available
if (strpos($response_text, 'No match for')) return true;
else return false;
}


$domainname = 'anilbuddha.com';

if(checkDomainAvailability($domainname)) echo 'Domain : '.$domainname.' is Available';
else echo 'Domain : '.$domainname.' is Already Taken';

?>

Wishing all my Friends a Happy Friendship Day

Friendship is not about finding similarities, it is about respecting differences. You are not my friend coz you are like me, but because i accept you and respect you the way you are. 

Wishing All my Friends a Happy Friendship Day......

Download DonSeenu Songs

Download the latest Songs of Don Seenu

Starring Ravi teja, Shreya saran.

For Download, Click Here

Source: southmp3.net 

Gmail Type Chat using PHP & Jquery

Need Gmail type chat using PHP & Jquery....

Here is the applicaion, download the file here.

For file download, click here

Epic Browser Done By Indians

Download latest Browser done by Indians, EPIC BROWSER........

For download, Click here

Resize Image using PHP

Problem to resize a big image while uploading using PHP, here is the code for resizing the image using a simple class. To download the file, Click here

The Class For resizing an image is shown  below.

Class resize
        {
            // *** Class variables
            private $image;
            private $width;
            private $height;
            private $imageResized;

            function __construct($fileName)
            {
                // *** Open up the file
                $this->image = $this->openImage($fileName);

                // *** Get width and height
                $this->width  = imagesx($this->image);
                $this->height = imagesy($this->image);
            }

            ## --------------------------------------------------------

            private function openImage($file)
            {
                // *** Get extension
                $extension = strtolower(strrchr($file, '.'));

                switch($extension)
                {
                    case '.jpg':
                    case '.jpeg':
                        $img = @imagecreatefromjpeg($file);
                        break;
                    case '.gif':
                        $img = @imagecreatefromgif($file);
                        break;
                    case '.png':
                        $img = @imagecreatefrompng($file);
                        break;
                    default:
                        $img = false;
                        break;
                }
                return $img;
            }

            ## --------------------------------------------------------

            public function resizeImage($newWidth, $newHeight, $option="auto")
            {
                // *** Get optimal width and height - based on $option
                $optionArray = $this->getDimensions($newWidth, $newHeight, $option);

                $optimalWidth  = $optionArray['optimalWidth'];
                $optimalHeight = $optionArray['optimalHeight'];


                // *** Resample - create image canvas of x, y size
                $this->imageResized = imagecreatetruecolor($optimalWidth, $optimalHeight);
                imagecopyresampled($this->imageResized, $this->image, 0, 0, 0, 0, $optimalWidth, $optimalHeight, $this->width, $this->height);


                // *** if option is 'crop', then crop too
                if ($option == 'crop') {
                    $this->crop($optimalWidth, $optimalHeight, $newWidth, $newHeight);
                }
            }

            ## --------------------------------------------------------
           
            private function getDimensions($newWidth, $newHeight, $option)
            {

               switch ($option)
                {
                    case 'exact':
                        $optimalWidth = $newWidth;
                        $optimalHeight= $newHeight;
                        break;
                    case 'portrait':
                        $optimalWidth = $this->getSizeByFixedHeight($newHeight);
                        $optimalHeight= $newHeight;
                        break;
                    case 'landscape':
                        $optimalWidth = $newWidth;
                        $optimalHeight= $this->getSizeByFixedWidth($newWidth);
                        break;
                    case 'auto':
                        $optionArray = $this->getSizeByAuto($newWidth, $newHeight);
                        $optimalWidth = $optionArray['optimalWidth'];
                        $optimalHeight = $optionArray['optimalHeight'];
                        break;
                    case 'crop':
                        $optionArray = $this->getOptimalCrop($newWidth, $newHeight);
                        $optimalWidth = $optionArray['optimalWidth'];
                        $optimalHeight = $optionArray['optimalHeight'];
                        break;
                }
                return array('optimalWidth' => $optimalWidth, 'optimalHeight' => $optimalHeight);
            }

            ## --------------------------------------------------------

            private function getSizeByFixedHeight($newHeight)
            {
                $ratio = $this->width / $this->height;
                $newWidth = $newHeight * $ratio;
                return $newWidth;
            }

            private function getSizeByFixedWidth($newWidth)
            {
                $ratio = $this->height / $this->width;
                $newHeight = $newWidth * $ratio;
                return $newHeight;
            }

            private function getSizeByAuto($newWidth, $newHeight)
            {
                if ($this->height < $this->width)
                // *** Image to be resized is wider (landscape)
                {
                    $optimalWidth = $newWidth;
                    $optimalHeight= $this->getSizeByFixedWidth($newWidth);
                }
                elseif ($this->height > $this->width)
                // *** Image to be resized is taller (portrait)
                {
                    $optimalWidth = $this->getSizeByFixedHeight($newHeight);
                    $optimalHeight= $newHeight;
                }
                else
                // *** Image to be resizerd is a square
                {
                    if ($newHeight < $newWidth) {
                        $optimalWidth = $newWidth;
                        $optimalHeight= $this->getSizeByFixedWidth($newWidth);
                    } else if ($newHeight > $newWidth) {
                        $optimalWidth = $this->getSizeByFixedHeight($newHeight);
                        $optimalHeight= $newHeight;
                    } else {
                        // *** Sqaure being resized to a square
                        $optimalWidth = $newWidth;
                        $optimalHeight= $newHeight;
                    }
                }

                return array('optimalWidth' => $optimalWidth, 'optimalHeight' => $optimalHeight);
            }

            ## --------------------------------------------------------

            private function getOptimalCrop($newWidth, $newHeight)
            {

                $heightRatio = $this->height / $newHeight;
                $widthRatio  = $this->width /  $newWidth;

                if ($heightRatio < $widthRatio) {
                    $optimalRatio = $heightRatio;
                } else {
                    $optimalRatio = $widthRatio;
                }

                $optimalHeight = $this->height / $optimalRatio;
                $optimalWidth  = $this->width  / $optimalRatio;

                return array('optimalWidth' => $optimalWidth, 'optimalHeight' => $optimalHeight);
            }

            ## --------------------------------------------------------

            private function crop($optimalWidth, $optimalHeight, $newWidth, $newHeight)
            {
                // *** Find center - this will be used for the crop
                $cropStartX = ( $optimalWidth / 2) - ( $newWidth /2 );
                $cropStartY = ( $optimalHeight/ 2) - ( $newHeight/2 );

                $crop = $this->imageResized;
                //imagedestroy($this->imageResized);

                // *** Now crop from center to exact requested size
                $this->imageResized = imagecreatetruecolor($newWidth , $newHeight);
                imagecopyresampled($this->imageResized, $crop , 0, 0, $cropStartX, $cropStartY, $newWidth, $newHeight , $newWidth, $newHeight);
            }

            ## --------------------------------------------------------

            public function saveImage($savePath, $imageQuality="100")
            {
                // *** Get extension
                $extension = strrchr($savePath, '.');
                   $extension = strtolower($extension);

                switch($extension)
                {
                    case '.jpg':
                    case '.jpeg':
                        if (imagetypes() & IMG_JPG) {
                            imagejpeg($this->imageResized, $savePath, $imageQuality);
                        }
                        break;

                    case '.gif':
                        if (imagetypes() & IMG_GIF) {
                            imagegif($this->imageResized, $savePath);
                        }
                        break;

                    case '.png':
                        // *** Scale quality from 0-100 to 0-9
                        $scaleQuality = round(($imageQuality/100) * 9);

                        // *** Invert quality setting as 0 is best, not 9
                        $invertScaleQuality = 9 - $scaleQuality;

                        if (imagetypes() & IMG_PNG) {
                             imagepng($this->imageResized, $savePath, $invertScaleQuality);
                        }
                        break;

                    // ... etc

                    default:
                        // *** No extension - No save.
                        break;
                }

                imagedestroy($this->imageResized);
            }


            ## --------------------------------------------------------

        }

Paypal Integration

How to Integrate with Paypal for our application is shown below.


<form method='post' action='https://www.paypal.com/cgi-bin/webscr' id="test">   
         
           <input type="hidden" name="cmd" value="_xclick" />
           <input type="hidden" name="business" value="businessaccount@mail.com" />
           <input type="hidden" name="cbt" value="* * * Return to Bearmanor Media Bizland * * *">     
           <input type="hidden" name="item_name" value="{ item_name }" /><!--change the { item name } give the item name which you want to show on paypal  -->
           <input type="hidden" name="amount" value="{total_amount_}" /><!--change the {total_amount_} give the total amount which you want to show on paypal -->
           <input type="hidden" name="no_shipping" value="1" />
           <input type="hidden" name="rm" value="2">
           <input type="hidden" name="return" value="{return url}" /><!--change the {return url} give the url to which it should redirect after completing the payment -->
           <input type="hidden" name="cpp_header_image" value="{bannerimage}" /><!--change the {bannerimage} give the url of banner if you have otherwise change it to empty such as value=""  -->
     <input type="hidden" name="notify_url" value="">          
           <input type="hidden" name="currency_code" value="USD" />          
           <input type="hidden" name="custom" value="{order_id}" />   
           <input type="hidden" name="cancel_return" value="{Cancel page(Ex:-http://www.mysite.com/CancelPayment.php}" />     
           <input type="image" id='submit' src="paynow.jpg" border="0" alt="Make payments with PayPal - it's fast, free and secure!" />
        
           
     </form>

Showing Current Date & Time using Javascript

Insert the Below code anywhere into the body section where you need to see the Current date & time 

<script>

var dayarray=new Array("Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday")
var montharray=new Array("January","February","March","April","May","June","July","August","September","October","November","December")

function getthedate(){
var mydate=new Date()
var year=mydate.getYear()
if (year < 1000)
year+=1900
var day=mydate.getDay()
var month=mydate.getMonth()
var daym=mydate.getDate()
if (daym<10)
daym="0"+daym
var hours=mydate.getHours()
var minutes=mydate.getMinutes()
var seconds=mydate.getSeconds()
var dn="AM"
if (hours>=12)
dn="PM"
if (hours>12){
hours=hours-12
}
if (hours==0)
hours=12
if (minutes<=9)
minutes="0"+minutes
if (seconds<=9)
seconds="0"+seconds
//change font size here
var cdate="<small><font color='000000' face='Arial'><b>"+dayarray[day]+", "+montharray[month]+" "+daym+", "+year+" "+hours+":"+minutes+":"+seconds+" "+dn
+"</b></font></small>"
if (document.all)
document.all.clock.innerHTML=cdate
else if (document.getElementById)
document.getElementById("clock").innerHTML=cdate
else
document.write(cdate)
}
if (!document.all&&!document.getElementById)
getthedate()
function goforit(){
if (document.all||document.getElementById)
setInterval("getthedate()",1000)
}

</script>
<span id="clock"></span>

& in the Body tag, we need to add an onLoad Function as shown below.

<body onload="goforit()">

For more Scripts...visit dynamicdrive

Loading Image Before the Page Loads using Javascript

Below is the code used to show the Loading image before the page loads.

To implement this you will need to:

1. Every time your page loads a "init()" function will load.

<body onLoad="init()">

2. Define a div named "loading" right after <body> section.

<div id="loading" style="position:absolute; width:100%; text-align:center; top:300px;">
<img src="loading.gif" border=0></div>

The loading.gif image should be an animated gif that suggests that the page is still loading.

3. Place this javascript code right after you define the div.

 <script>
 var ld=(document.all);
  var ns4=document.layers;
 var ns6=document.getElementById&&!document.all;
 var ie4=document.all;
  if (ns4)
  ld=document.loading;
 else if (ns6)
  ld=document.getElementById("loading").style;
 else if (ie4)
  ld=document.all.loading.style;
  function init()
 {
 if(ns4){ld.visibility="hidden";}
 else if (ns6||ie4) ld.display="none";
 }
 </script>

& to See the Demo, Click Here 

PHP Interview Questions

Why doesn’t the following code print the newline properly? <?php $str = ‘Hello, there.\nHow are you?\nThanks for visiting myblog’; print $str; ?>
Because inside the single quotes the \n character is not interpreted as newline, just as a sequence of two characters - \ and n.

Would you initialize your strings with single quotes or double quotes?
Since the data inside the single-quoted string is not parsed for variable substitution, it’s always a better idea speed-wise to initialize a string with single quotes, unless you specifically need variable substitution.

How can we extract string 'abc.com ' from a string http://info@abc.com using regular expression of php?
 We can use the preg_match() function with "/.*@(.*)$/" as
the regular expression pattern. For example:
preg_match("/.*@(.*)$/","http://info@abc.com",$data);
echo $data[1];

What are the differences between GET and POST methods in form submitting, give the case where we can use GET and we can use POST methods?
Anwser 1:

When we submit a form, which has the GET method it displays pair of name/value used in the form at the address bar of the browser preceded by url. Post method doesn't display these values.

Anwser 2:

When you want to send short or small data, not containing ASCII characters, then you can use GET” Method. But for long data sending, say more then 100 character you can use POST method.

Once most important difference is when you are sending the form with GET method. You can see the output which you are sending in the address bar. Whereas if you send the form with POST” method then user can not see that information.

Anwser 3:

What are "GET" and "POST"?

GET and POST are methods used to send data to the server: With the GET method, the browser appends the data onto the URL. With the Post method, the data is sent as "standard input."

Major Difference

In simple words, in POST method data is sent by standard input (nothing shown in URL when posting while in GET method data is sent through query string.

Ex: Assume we are logging in with username and password.

GET: we are submitting a form to login.php, when we do submit or similar action, values are sent through visible query string (notice ./login.php?username=...&password=... as URL when executing the script login.php) and is retrieved by login.php by $_GET['username'] and $_GET['password'].

POST: we are submitting a form to login.php, when we do submit or similar action, values are sent through invisible standard input (notice ./login.php) and is retrieved by login.php by $_POST['username'] and $_POST['password'].

POST is assumed more secure and we can send lot more data than that of GET method is limited (they say Internet Explorer can take care of maximum 2083 character as a query string).

Anwser 4:

In the get method the data made available to the action page ( where data is received ) by the URL so data can be seen in the address bar. Not advisable if you are sending login info like password etc. In the post method the data will be available as data blocks and not as query string in case of get method.

Anwser 5:

When we submit a form, which has the GET method it pass value in the form of query string (set of name/value pair) and display along with URL. With GET we can a small data submit from the form (a set of 255 character) whereas Post method doesn't display value with URL. It passes value in the form of Object and we can submit large data from the form.

Anwser 6:

On the server side, the main difference between GET and POST is where the submitted is stored. The $_GET array stores data submitted by the GET method. The $_POST array stores data submitted by the POST method.
On the browser side, the difference is that data submitted by the GET method will be displayed in the browser’s address field. Data submitted by the POST method will not be displayed anywhere on the browser.
GET method is mostly used for submitting a small amount and less sensitive data. POST method is mostly used for submitting a large amount or sensitive data.

What is the difference between the functions unlink and unset?
unlink() is a function for file system handling. It will simply delete the file in context.

unset() is a function for variable management. It will make a variable undefined.

How come the code works, but doesn’t for two-dimensional array of mine?
Any time you have an array with more than one dimension, complex parsing syntax is required. print "Contents: {$arr[1][2]}" would’ve worked.

For More Interview Questions, Click Here