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run code in 150+ php & hhvm versions
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<?php $arr ={"abc"=>"","s"=>""}; $set_errors = array_keys( $errors, true ); print_r($set_errors);
Output for 5.3.0 - 5.4.29
Parse error: syntax error, unexpected '{' in /in/YIiLa on line 3
Process exited with code 255.