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run code in 150+ php & hhvm versions
Bugs & Features
<?php $vars = array( 'headline' => 'foo' ); echo preg_replace_callback('/\{\{(\w+)\}\}/', function (array $m) use ($vars) { return $vars[$m[1]]; }, '<p>{{headline}}</p>');
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
<p>foo</p>
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/WjXjm on line 7
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/WjXjm on line 7
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/WjXjm on line 7
Process exited with code 255.