3v4l.org

run code in 300+ PHP versions simultaneously
<?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())
Output for 5.5.24 - 5.5.28, 5.6.8 - 5.6.12
Parse error: syntax error, unexpected end of file, expecting ';' in /in/5PjDC on line 15
Process exited with code 255.
Output for 5.4.0 - 5.4.44
Parse error: syntax error, unexpected ''a'' (T_CONSTANT_ENCAPSED_STRING) in /in/5PjDC on line 5
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_CONSTANT_ENCAPSED_STRING in /in/5PjDC on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_CONSTANT_ENCAPSED_STRING in /in/5PjDC on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/5PjDC on line 5
Process exited with code 255.
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