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<?php var_dump( ! 'none' !== 'none'); var_dump( ! 'none2' !== 'none'); if ( ! 'none' !== 'none') { var_dump('success1'); } if ( ! 'none2' !== 'none') { var_dump('success2'); } if ('none' !== 'none') { var_dump('success3'); } if ('none2' !== 'none') { var_dump('success4'); }
based on 0M5Ot
Output for 4.3.0 - 7.2.0
bool(true) bool(true) string(8) "success1" string(8) "success2" string(8) "success4"