3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { const Barman = 'abc'; const Barfight = 'def'; } for ([ 'man', 'fight' ] as $i) { echo Foo::{'Bar' . $i}; }
Output for 5.4.0 - 5.4.29
Parse error: syntax error, unexpected 'as' (T_AS), expecting ';' in /in/75gvn on line 8
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected '[', expecting ';' in /in/75gvn on line 8
Process exited with code 255.
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