3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $set1 = ['A', 'B', 'C']; $set2 = [1, 2, 3]; function perms( $set1, $set2, $i) { $perms = array(); if( $i == size( $set1) - 1) { return array(); } foreach( $set1 as $n1) { foreach( $set2 as $n2) { $perms[] = $n1 . $n2; } } $i++; for( $j = 0; $j < $i; $j++) { $set1[] = array_shift( $set1); $set2[] = array_shift( $set2); } return array_merge( $perms, perms( $set1, $set2)); } var_dump( perms( $set1, $set2, 0));
Output for 7.0.0 - 7.1.0
Fatal error: Uncaught Error: Call to undefined function size() in /in/Jebm8:8 Stack trace: #0 /in/Jebm8(27): perms(Array, Array, 0) #1 {main} thrown in /in/Jebm8 on line 8
Process exited with code 255.
Output for 5.4.0 - 5.6.28
Fatal error: Call to undefined function size() in /in/Jebm8 on line 8
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/Jebm8 on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/Jebm8 on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/Jebm8 on line 2
Process exited with code 255.