3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $pattern = "[♥]+"; $replacement = "love"; var_dump(mb_ereg_replace($pattern,$replacement,"I ♥ PHP"));
Output for 5.0.0 - 5.2.17, 5.6.8 - 5.6.28, 7.0.0 - 7.1.0
string(10) "I love PHP"
Output for hhvm-3.10.0 - 3.12.0
Warning: mbregex compile err: premature end of char-class in /in/1ciHJ on line 4 bool(false)
Output for 5.3.0 - 5.5.35
Warning: mb_ereg_replace(): mbregex compile err: premature end of char-class in /in/1ciHJ on line 4 bool(false)
Output for 4.3.4 - 4.4.9
Warning: mb_ereg_replace(): mbregex compile err: premature end of regular expression in /in/1ciHJ on line 4 bool(false)
Output for 4.3.2 - 4.3.3
Fatal error: Call to undefined function: mb_ereg_replace() in /in/1ciHJ on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: mb_ereg_replace() in /in/1ciHJ on line 4