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Delete all cookies set

in php

<? foreach($_COOKIE as $key => $value) { setcookie($key,$value,time()-10000,"/",".domain.com"); } ?>

A 3 line code snippet which will delete all cookies currently set by a website.

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Hide and show DIV

in javascript

<script type="text/javascript">  </script>  <a href="javascript:toggle_div('hideshow')">Hide/show</a> <div id="hideshow"> <h1>Example</h1> </div>

Simple little code which will allow you to toggle the display of a div

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IE7 Add to favourites

in javascript

<a href="#" onClick="this.style.behavior='url(#default#homepage)';this.setHomePage(location.href);">Set as homepage</a>

A simple add to favourites link for IE7

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MySQL connect

in php

<? // Connect $con = mysql_connect("mysql_host","mysql_username","mysql_pass") or die(mysql_error()); $db = mysql_select_db("db_name") or die(mysql_error()); // all connected - do SQL stuff // close connection mysql_close($con); ?>

How to connect to a MySQL database

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Include file

in php

<? // Simple! include("path/file.php"); ?>

Simple file include

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Time and date

in php

<? // Will display something similar to: // Sunday March 24, 2007 - 08:10:22 echo date("l F d, Y - h:i:s" ,time()); ?>

Display time and date with PHP

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No right click

in javascript

Disable right click on your pages

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Image information

in php

<? $info=getimagesize("image.jpg"); // display details echo "Image width: ".$info[0]."<br />"; echo "Image height: ".$info[1]."<br />"; echo "Image type: ".$info[mime]."<br />"; echo "Image size: ".$info[bits]."<br />"; ?>

This snippet will show the information (dimensions, type, size) of an image.

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Coloured scroll bars

in css

Add coloured scroll bars to your webpage

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Checking MySQL result

in php

<? $sql=mysql_query("SELECT `foo` FROM `bar`"); // Perform query if(mysql_num_rows($sql)!=0) { // Check how many rows were returned // Do whatever you want } else { echo "No rows were returned!"; } ?>

This PHP snippet allows you to make sure at least 1 one row was returned from a query.

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PHP, Javascript, CSS & mySQL code snippets