3v4l.org

run code in 300+ PHP versions simultaneously
<?php ini_set('mbstring.internal_encoding', 'UTF-8'); mb_regex_encoding('UTF-8'); var_dump(preg_split('|\B|', "abc")); var_dump(mb_split('\B', "abc"));
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.31, 7.3.0 - 7.3.19, 7.4.0 - 7.4.8, 8.0.0alpha1 - alpha2
Deprecated: ini_set(): Use of mbstring.internal_encoding is deprecated in /in/fb4XN on line 2 array(3) { [0]=> string(1) "a" [1]=> string(1) "b" [2]=> string(1) "c" } array(2) { [0]=> string(1) "a" [1]=> string(2) "bc" }
Output for 5.4.13 - 5.4.45, 5.5.0 - 5.5.38
array(3) { [0]=> string(1) "a" [1]=> string(1) "b" [2]=> string(1) "c" } array(2) { [0]=> string(1) "a" [1]=> string(2) "bc" }
Output for 4.3.4 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.12
array(3) { [0]=> string(1) "a" [1]=> string(1) "b" [2]=> string(1) "c" } Warning: mb_split(): Empty regular expression in /in/fb4XN on line 6 array(1) { [0]=> string(3) "abc" }
Output for 4.3.2 - 4.3.3
Fatal error: Call to undefined function: mb_regex_encoding() in /in/fb4XN on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: mb_regex_encoding() in /in/fb4XN on line 3