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run code in 150+ php & hhvm versions
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<?php $one = [['foo']]; $two = [['bar']]; if(($foo=array_pop($one)) | ($bar=array_pop($two))) { var_dump($foo, $bar);//"foo" & null }
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(1) { [0]=> string(3) "foo" } array(1) { [0]=> string(3) "bar" }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/bHNdv on line 3
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/bHNdv on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/bHNdv on line 3
Process exited with code 255.