3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $pat = "[♥]+"; $sub = "heart"; echo mb_ereg_replace( $pat, $sub, "I $♥ PHP" );
based on WS0NI
Output for 5.0.4 - 5.2.17, 5.6.7 - 7.1.0
Notice: Undefined variable: ♥ in /in/ZegKg on line 5 I PHP
Output for 5.3.0 - 5.5.35
Notice: Undefined variable: ♥ in /in/ZegKg on line 5 Warning: mb_ereg_replace(): mbregex compile err: premature end of char-class in /in/ZegKg on line 5
Output for 5.0.0 - 5.0.3
Notice: Undefined variable: ♥ in /in/ZegKg on line 5 I PHP
Output for 4.3.4 - 4.4.9
Notice: Undefined variable: ♥ in /in/ZegKg on line 5 Warning: mb_ereg_replace(): mbregex compile err: premature end of regular expression in /in/ZegKg on line 5
Output for 4.3.2 - 4.3.3
Fatal error: Call to undefined function: mb_ereg_replace() in /in/ZegKg on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: mb_ereg_replace() in /in/ZegKg on line 5