3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function replace($url){ $url = str_replace("\\r","\r",$url); $url = str_replace("\\n","\n<BR>",$url); $url = str_replace("\\n\\r","\n\r",$url); $in=array( '`(?:https?|ftp)://\S+[[:alnum:]]/?`si', '`(?<!//)(www\.\S+[[:alnum:]]/?)`si', '`(?<!>)(?:https?|ftp)://\S+[[:alnum:]]\.(png|jpeg|jpg|gif)\b`si', '`(?<!//|>)(?:www\.\S+[[:alnum:]]\.(png|jpeg|jpg|gif)\b)`si' ); // это для ссылок и фото $out=array( '<a style="color:navy;" href="$0" rel="nofollow">$0</a>', '<a style="color:navy;" href="http://$0" rel=\'nofollow\'>$0</a>', '<img src="$0" rel="nofollow">', '<img src="http://$0" rel=\'nofollow\'>' ); return preg_replace($in, $out, $url); } echo replace('dfd dfdf http://site.ru/ ddd fff http://img.com/pic.png text');
Output for 4.3.0 - 7.1.0
dfd dfdf <a style="color:navy;" href="http://site.ru/" rel="nofollow">http://site.ru/</a> ddd fff <a style="color:navy;" href="<img src="http://img.com/pic.png" rel="nofollow">" rel="nofollow">http://img.com/pic.png</a> text