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run code in 150+ php & hhvm versions
Bugs & Features
<?php $heart = "adore"; $pat = "[♥]+"; $sub = "heart"; $code = mb_ereg_replace( $pat, $sub, "I \$♥ PHP" ); var_dump($code); echo eval("\$code = \"$code\";");
Output for 5.0.0 - 5.2.17, 5.6.8 - 7.1.0
string(12) "I $heart PHP"
Output for 5.3.0 - 5.5.35
Warning: mb_ereg_replace(): mbregex compile err: premature end of char-class in /in/vQDkY on line 5 bool(false)
Output for 4.3.4 - 4.4.9
Warning: mb_ereg_replace(): mbregex compile err: premature end of regular expression in /in/vQDkY on line 5 bool(false)
Output for 4.3.2 - 4.3.3
Fatal error: Call to undefined function: mb_ereg_replace() in /in/vQDkY 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/vQDkY on line 5