PHP and MySQL Code

Start typing to search for PHP and MySQL Code Snippets and Articles Search

Submit a code Example / Snippet Join us on FaceBook
Submit a code Example / Snippet Submit Your Code
Search Engine Optimization Monitor SEO Monitor
Web Site UpTime Monitor UpTime Monitor
Your Personal Examples List My Favorite Examples
Your Personal Articles List My Favorite Articles
Edit Account Info Update Your Profile
PHP Code Search
Web Development Forums
Learn MySQL Playing Trivia
PHPBB2 Templates
Web Development Resources
Web Development Content
PHP Editor
PHP Jobs
Vision.To Design
Ajax Tutorials
PHP Programming Help
PHP/MySQL Programming
Webmaster Resources
Webmaster Forum
XML meta language
website builder

Go Back Add a Comment Send this example to a friend Add this Article to your personal favoritest for easy future access to your favorite Code Examples and Articles. Submit a code example Print this code example.
Title : Validating a URL with preg_match
Categories : PHP, Regexps, Beginner Guides, Data Validation
Boaz Yahav
Date : Sep 24th 2005
Grade : 1 of 5 (graded 8 times)
Viewed : 59499
File : No file for this code example.
Images : No Images for this code example.
Search : More code by Boaz Yahav
Action : Grade This Code Example
Tools : My Examples List

Submit your own code examples  Submit your own code examples 

The next code checks the following :

o URL starts with a-z, A-Z (e.g. http, ftp...)
o It is then followed by ://
o next we have more letters, numbers and special chars : a-z, A-Z, 0-9, -, _
o there must be at least one "."
o A URL can contain at it's end part the more special characters and this is
why the last part allows for more options such as ?, /, &, %, etc...
you may add/remove chars as needed to your code.

// Assuming that the URL is received from a FORM by POST with the field name being "URL" the code
// Looks like this :

if(!preg_match("/^[a-zA-Z]+[:\/\/]+[A-Za-z0-9\-_]+\\.+[A-Za-z0-9\.\/%&=\?\-_]+$/i",$_POST[URL])) {
Echo"You must supply a valid URL.";

Newbie Notes #7 - Ridiculous regex
Categories : PHP, Beginner Guides, Regexps
Check for functional file links (broken Files)
Categories : PHP, Data Validation, FTP, Regexps, Arrays
Banknote Validation - A PHP class that provides several methods to quickly validate banknote serial numbers of the following currencies: AUD, CAD, CHF, CNY, EUR, GBP, JPY, USD.
Categories : PHP, PHP Classes, Data Validation, Regexps
An array of functions to use in checking user input to HTML forms : text, firstName, middleNameOrInit, lastName, email, web, digits, decimal, hex, genNum, USD, BPS, Euro, USphone, USzip
Categories : PHP, Data Validation, Regexps
Find the day of the week for any given year/month/day.
Categories : PHP, Date Time, Data Validation, Algorithms, Beginner Guides
Ensure that a specific value lies within a specific range.
Categories : PHP, Beginner Guides, Data Validation
Find if a year is leap.
Categories : PHP, Date Time, Beginner Guides, Data Validation
PHP based HTML rabbing Tools
Categories : PHP, HTML and PHP, Tag Extractors, Regexps, Beginner Guides
PHP Image Validation Class - test if a specific file is of a certain image type without relying on the said file extension.
Categories : PHP, PHP Classes, Data Validation, Graphics, Beginner Guides
Form Validation Using PHP to highlight non valid fields
Categories : PHP, Form Processing, Data Validation, Beginner Guides
a PHP Function to Get only the filename (remove the extension) using regular expressions.
Categories : PHP, Regexps, Beginner Guides
Db_lib - practical example usage of database abstraction and form validation.
Categories : PHP, Form Processing, PHP Classes, Data Validation, Beginner Guides
Local Time clock and Server time usign PHP and JavaScript
Categories : PHP, Java Script, Date Time, Beginner Guides
Simple SOAP Example (with SoapClient)
Categories : PHP, Web Services, SOAP, Beginner Guides
Reverse a given number
Categories : PHP, Beginner Guides, Algorithms, Math.