3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function foo() { yield 'a' => 1; yield 'b' => 2; yield 'c' => 3; } $it = foo(); do { echo key($it), "\n", current($it), "\n"; } while($it->next());
based on 5PjDC
Output for 5.5.24 - 7.2.0
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected ''a'' (T_CONSTANT_ENCAPSED_STRING) in /in/2plqj on line 5
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected T_CONSTANT_ENCAPSED_STRING in /in/2plqj on line 5
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 T_CONSTANT_ENCAPSED_STRING in /in/2plqj on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/2plqj on line 5
Process exited with code 255.