3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $heart = "love"; $pat = "[♥]+"; $sub = "heart"; $old = "I \$♥ PHP"; $new = mb_ereg_replace( $pat, $sub,$old ); echo eval("\$new = \"$new\";");
based on 52ZPK
Output for 5.0.0 - 5.2.17, 5.6.8 - 5.6.28, 7.0.0 - 7.1.0
Output for hhvm-3.12.0
Warning: mbregex compile err: premature end of char-class in /in/oHJRM on line 6
Output for hhvm-3.10.0
Warning: mbregex compile err: premature end of char-class in /in/oHJRM on line -1
Output for 5.3.0 - 5.5.35
Warning: mb_ereg_replace(): mbregex compile err: premature end of char-class in /in/oHJRM on line 6
Output for 4.3.4 - 4.4.9
Warning: mb_ereg_replace(): mbregex compile err: premature end of regular expression in /in/oHJRM on line 6
Output for 4.3.2 - 4.3.3
Fatal error: Call to undefined function: mb_ereg_replace() in /in/oHJRM on line 6
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: mb_ereg_replace() in /in/oHJRM on line 6