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The same file (counter.txt) is used for both reading as well as writing. So each time the file should be closed before opening for the next time as read or write mode.
<?php $filename=”counter.txt”; $f=fopen($filename,”r”) or die(”Read Failed”); $str=fread($f,filesize($filename)); echo “The page has been visited [...]

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This scripts tells how to submit a form to the same page itself….
<form method=post action=”<?php echo $_SERVER['PHP_SELF']; ?>”> Enter your Name: <input type=text name=user> <input type=submit name=submit> </form> <?php if(isset($_POST['submit'])) { $user=$_POST['user']; [...]

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For uploading Files to the server, we need to run two files, For example let us say upload.html (to select the file) and upload.php (to upload)…. let us define each of the two files
//upload.html
<form method=post action=upload.php enctype=multipart/form-data> Select a File: <input type=file name=myfile> <input type=submit value=upload> </form>
//upload.php
<?php [...]

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There are different sorting functions used to sort the arrays and other variables. Some of the their functions are listed below:
sort() – used to sort an array in normal order
rsort() – used to sort an array in normal reverse order
asort() – used to sort array and maintain the index association(key value pair maintains even after [...]

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How to send email using PHP. The following section describes that with coding…..
Before using Mail in PHP, note that, PHP mail is intended for only a small scale use and not for large scale Email systems. So for large scale, you may use other mal softwares.
Email can be sent

as ordinary plain message
as an HTML [...]

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To Set cookies using PHP, setcookie() function is used. Cookie is a piece of information that stored in the client’s machine (usually browser) by the server.
setcookie() contains 6 parameters

Name of the cookie- usage- “FirstCookie”
The value of the cookie. This value is stored on the clients computer; do not store sensitive information. Assuming the name [...]

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Source : http://www.openpeta.com
<?php /* * FileName:validation.php * Created on Jan 16, 2007 * Author:Antony */ function validateUname($uname) { if (ereg(’^[a-zA-Z0-9_]{3,50}$’, $uname)) return true; else [...]

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