http://php.snippetdb.com/ the dedicated php snippet and example database http://php.snippetdb.com/view.php?ID=55 This example shows a very simple form together with the form handling process on a single page. 2004-07-08 00:49:21 http://php.snippetdb.com/view.php?ID=54 basic example of an if then else control structure. 2004-07-07 23:11:00 http://php.snippetdb.com/view.php?ID=53 Sometimes you want to be able to give some feedback if a PHP include has failed. Here is a version using the fopen command, which can search the include path. 2004-07-07 19:34:49 http://php.snippetdb.com/view.php?ID=52 To determine whether a file exists on the server, PHP has a simple function: file_exists. 2004-07-07 16:45:37 http://php.snippetdb.com/view.php?ID=51 Grabs the referring URL - get the HTTP_REFERER and save it to a variable. 2004-07-02 04:14:50 http://php.snippetdb.com/view.php?ID=50 This commands disables php from rewriting URLs to add a phpsessid, and forces the use of cookie sessions instead. Using cookies is largely thought of as the preferred way to use sessions - both more secure and better for SEO. This can be accomplished by setting the appropriate values in php.ini, or at runtime. This snippet shows a runtime example: 2004-06-17 00:16:45 http://php.snippetdb.com/view.php?ID=49 Generate a random number using mt_rand. From the php documentation- "If called without the optional min, max arguments mt_rand() returns a pseudo-random value between 0 and RAND_MAX. If you want a random number between 5 and 15 (inclusive), for example, use mt_rand (5, 15)." 2004-06-15 07:03:16 http://php.snippetdb.com/view.php?ID=46 There are several ways to process a php form. This example looks for the existance (regardless of value) of the Submit _POST variable. 2004-06-14 16:21:07 http://php.snippetdb.com/view.php?ID=47 for loop - basic control structure. This example loops until the variable hits 10 and then breaks out. 2004-06-14 16:20:40 http://php.snippetdb.com/view.php?ID=45 Often used for form actions, the variable $PHP_SELF has changed with recent versions, and now must be accessed using the _SERVER array of pre-defined variables. 2004-06-14 14:04:23 http://php.snippetdb.com/view.php?ID=44 This example gets the users IP address and exits the page if it matches a banned number. 2004-06-04 20:00:03 http://php.snippetdb.com/view.php?ID=43 Validate an email address - returns TRUE or FALSE. Checks format only, does not use any networking functions to verify the account actually exists. 2004-06-04 15:39:26 http://php.snippetdb.com/view.php?ID=41 Using the php header function, a browser can be redirected to another page. 2004-06-04 01:21:21 http://php.snippetdb.com/view.php?ID=42 Sometimes you need just the filename of the current script, without the path. This snippet does just that using the SCRIPT_NAME and explode function. 2004-06-04 00:58:28 http://php.snippetdb.com/view.php?ID=36 Send an email from PHP - one line example. 2004-02-14 23:55:10 http://php.snippetdb.com/view.php?ID=40 The Smarty date_format function returns a formatted string showing date, time and/or seconds. 2004-02-14 23:42:58 http://php.snippetdb.com/view.php?ID=20 find and replace pattern in a string. 2004-02-13 02:23:02 http://php.snippetdb.com/view.php?ID=17 Pass variables to a page using the question mark, for example mypage.php?value=hello. Access these variables with the _GET command. 2004-02-12 20:50:41 http://php.snippetdb.com/view.php?ID=16 simple php array declaration: 2004-02-12 20:50:22 http://php.snippetdb.com/view.php?ID=15 declare an object in php. This example also shows how to pass a value to the object when created. 2004-02-12 05:16:27