3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php // your code goes here $html = '<body link="#0066FF" vlink="#6633CC" bgcolor="#4CDCFF" style=\'margin:0\'>'; echo preg_replace('#<body link="#[a-zA-Z0-9]+" vlink="#[a-zA-Z0-9]+" bgcolor="#[a-zA-Z0-9]+" style=\'margin:0\'>#', $head, $html);
Output for 5.5.0 - 5.6.28, 7.0.0 - 7.1.0
Notice: Undefined variable: head in /in/uffLa on line 7 Warning: preg_replace(): Unknown modifier '[' in /in/uffLa on line 7
Output for hhvm-3.10.0 - 3.12.0
Notice: Undefined variable: head in /in/uffLa on line 7 Warning: Unknown modifier '[': [#<body link="#[a-zA-Z0-9]+" vlink="#[a-zA-Z0-9]+" bgcolor="#[a-zA-Z0-9]+" style='margin:0'>#] in /in/uffLa on line 7
Output for 5.2.3 - 5.4.45
Warning: preg_replace(): Unknown modifier '[' in /in/uffLa on line 7
Output for 4.4.3 - 5.2.2
<br /> <b>Warning</b>: preg_replace() [<a href='function.preg-replace'>function.preg-replace</a>]: Unknown modifier '[' in <b>/in/uffLa</b> on line <b>7</b><br />
Output for 4.3.11 - 4.4.2
<br /> <b>Warning</b>: preg_replace(): Unknown modifier '[' in <b>/in/uffLa</b> on line <b>7</b><br />
Output for 4.3.0 - 4.3.10
<br /> <b>Warning</b>: Unknown modifier '[' in <b>/in/uffLa</b> on line <b>7</b><br />