3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function start( $entrance, array $route ) { $stage = []; $register = function( $on, $append ) use ( &$stage ) { if ( isset( $stage[$on] ) ) $stage[$on][] = $append; else $stage[$on] = [ $append ]; return; }; $executor = function( $step ) use ( $register, &$stage ) { if ( 1 == $step ) { $register( 3, 5 ); $register( 3, 6 ); } echo $step; }; // $register(); foreach( $route as $r ) { if ( isset( $stage[$r] ) ) foreach( $stage[$r] as $rr ) $executor( $rr ); $executor( $r ); } } start( 1, [ 1, 2, 3, 4 ] );
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
125634
Output for 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/titLu on line 4
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_ARRAY, expecting '&' or T_VARIABLE in /in/titLu on line 2
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_ARRAY, expecting '&' or T_VARIABLE or T_CONST in /in/titLu on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_ARRAY, expecting '&' or T_VARIABLE or T_CONST in /in/titLu on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'&'' or `T_VARIABLE' or `T_CONST' in /in/titLu on line 2
Process exited with code 255.