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run code in 200+ php & hhvm versions
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<?php $array = [ 'foo', 'bar', ]; var_dump( $array ); unset( $array[1] ); $array[] = 'asdf'; var_dump( $array ); ?>
Output for 5.4.0 - 7.2.0
array(2) { [0]=> string(3) "foo" [1]=> string(3) "bar" } array(2) { [0]=> string(3) "foo" [2]=> string(4) "asdf" }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/lnmHB 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/lnmHB on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/lnmHB on line 3
Process exited with code 255.