Online PHP editor | output for qQK68

@ 2014-05-13T15:38:26Z

<?php
$reg_exUrl = "/((http|https)\:\/\/|(www)\.)[a-zA-Z0-9\-\.]+\.[a-zA-Z]{2,3}(\/\S*)?/";

$text = 'demo www.google.bg';
        preg_match_all($reg_exUrl, $text, $matches);
        $usedPatterns = array();
        foreach($matches[0] as $pattern){
            if(!array_key_exists($pattern, $usedPatterns)){
                $usedPatterns[$pattern]=true;
                if(preg_match('%https',))
                $text = str_replace  ($pattern, "<a href='{$pattern}' target='_blank'>{$pattern}</a> ", $text);   
            }
        }
        echo $text;

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: Fatal error: Uncaught ArgumentCountError: preg_match() expects at least 2 arguments, 1 given in /in/qQK68:10 Stack trace: #0 /in/qQK68(10): preg_match('%https') #1 {main} thrown in /in/qQK68 on line 10
Process exited with code 255.
Output for 7.3.16 - 7.3.33, 7.4.3 - 7.4.33: Warning: preg_match() expects at least 2 parameters, 1 given in /in/qQK68 on line 10 demo www.google.bg
Output for 5.3.0 - 5.3.28, 5.4.0 - 5.4.28, 7.2.29 - 7.2.33: Parse error: syntax error, unexpected ')' in /in/qQK68 on line 10
Process exited with code 255.

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