Hosting Solutions
mobile_logo Table of Contents

Active Clickable Link Function preg_replace Programming Tutorial

Learn to use preg_replace() and regular expression arrays to automatically turn all URL strings in data into active clickable links. Most of the time the string is run through the function on the way out of the database for rendering on a page. After you put it into place on your site, your function or class will automatically turn URL strings found in written data into active clickable links. <?php // This function can be externally included as a dynamic reusable module function activateUrlStrings($str){ $find = array('`((?:https?|ftp)://\S+[[:alnum:]]/?)`si', '`((?<!//)(www\.\S+[[:alnum:]]/?))`si'); $replace = array('<a href="$1" target="_blank">$1</a>', '<a href="http://$1" target="_blank">$1</a>'); return preg_replace($find,$replace,$str); } // This is the code that calls the function to run $string = "my website is and another website is"; $string = activateUrlStrings($string); echo $string; ?>

PHP Videos


Website Design Theme Application PHP Cookies CSS TutorialPDO Prepared Statements PHP TutorialPDO Tutorial Connect Database and Query ExampleActive Page Link Button Highlight TutorialGeoPlugin Tutorial Get User Location Information IP DetectionHashtag System and Regex PHP Programming TutorialPagination MySQLi Google Style Paged Results TutorialActive Clickable Link Function preg_replace Programming TutorialGet Favicon From Web Site Link Access External FilesRandom String Generator PHP Function Programming TutorialForce File Download Dialog In Browser TutorialCheck User Sign Up Name Ajax PHP Social Network TutorialFlat File Text Database System CMS Edit Content TutorialFlat File Text Database System Display ContentExperience Level Evaluation Programming TutorialStagger and Limit Dynamic Output in a While Loop Google AdsTwitter Dynamic Goodies Widget TutorialDynamic Google Maps Location TutorialPrepared Statements PHP mysqli Tutorial