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run code in 200+ php & hhvm versions
Bugs & Features
<?php function f(){ echo 'oops'; } echo preg_replace('/.+/e', 'strlen("\0")', $s='\\{f()}');
Output for 7.0.0 - 7.2.6
Warning: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead in /in/BSuva on line 4
Output for 5.3.0 - 5.4.45, hhvm-3.10.1 - 3.17.3
6
Output for 5.5.0 - 5.6.30
Deprecated: preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead in /in/BSuva on line 4 6