3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $reg_exUrl = "/((http|https)\:\/\/|(www)\.)[a-zA-Z0-9\-\.]+\.[a-zA-Z]{2,3}(\/\S*)?/"; $text = 'some text http://google.bg/'; preg_match_all($reg_exUrl, $text, $matches); $usedPatterns = array(); foreach($matches[0] as $pattern){ if(!array_key_exists($pattern, $usedPatterns)) { $usedPatterns[$pattern]=true; if(preg_match('%https://%',$pattern)) { //$start = "https://"; } elseif(preg_match('%http://%',$pattern)) { //$start = "http://"; } else { $start = "http://"; } $text = str_replace ($pattern, "<a href='{$start}{$pattern}' target='_blank'>{$pattern}</a> ", $text); } } echo $text;
Output for 5.0.4 - 7.1.0
Notice: Undefined variable: start in /in/JGAVd on line 23 some text <a href='http://google.bg/' target='_blank'>http://google.bg/</a>
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: start in /in/JGAVd on line 23 some text <a href='http://google.bg/' target='_blank'>http://google.bg/</a>