3v4l.org

run code in 300+ PHP versions simultaneously
<?php function makeLink($string){ /*** make sure there is an http:// on all URLs ***/ $string = preg_replace("/([^\w\/])(www\.[a-z0-9\-]+\.[a-z0-9\-]+)/i", "$1http://$2",$string); /*** make all URLs links ***/ $string = preg_replace("/([\w]+:\/\/[\w-?&;#~=\.\/\@]+[\w\/])/i","<a target=\"_blank\" href=\"$1\">$1</A>",$string); /*** make all emails hot links ***/ $string = preg_replace("/([\w-?&;#~=\.\/]+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,3}|[0-9]{1,3})(\]?))/i","<A HREF=\"mailto:$1\">$1</A>",$string); return $string; } echo makeLink('http://snoodo.com');
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: preg_replace(): Compilation failed: invalid range in character class at offset 14 in /in/jcLKO on line 7 Deprecated: preg_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated in /in/jcLKO on line 9 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /in/jcLKO on line 9
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
Warning: preg_replace(): Compilation failed: invalid range in character class at offset 14 in /in/jcLKO on line 7 Warning: preg_replace(): Compilation failed: invalid range in character class at offset 4 in /in/jcLKO on line 9
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33
<a target="_blank" href="http://snoodo.com">http://snoodo.com</A>

preferences:
295.04 ms | 404 KiB | 384 Q