Online PHP editor | refs for NmgbE

<?php var_dump( in_array(0, ['this', 'that', 1, 2]) ); var_dump( in_array(0, ['this', 'that']) ); var_dump( in_array(false, ['this', 'that']) ); var_dump( in_array(true, ['this', 'that']) ); var_dump( in_array(true, [true, false]) ); var_dump( in_array(false, [true, false]) ); var_dump( in_array(null, ['this', 'that', 1, 2]) );