3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $tag_value = preg_replace('/\{(.*?)\}/e', '\1\1', "asdf-{test}-asdf"); echo $tag_value; ?>
Output for 7.0.0 - 7.1.0
Warning: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead in /in/hAW2H on line 2
Output for hhvm-3.10.0 - 3.12.0
Notice: Use of undefined constant testtest - assumed 'testtest' asdf-testtest-asdf
Output for 5.5.0 - 5.6.28
Deprecated: preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead in /in/hAW2H on line 2 Notice: Use of undefined constant testtest - assumed 'testtest' in /in/hAW2H(2) : regexp code on line 1 asdf-testtest-asdf
Output for 4.3.0 - 5.4.45
Notice: Use of undefined constant testtest - assumed 'testtest' in /in/hAW2H(2) : regexp code on line 1 asdf-testtest-asdf