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<?php var_dump( ! 'none' !== 'none'); var_dump( ! 'none2' !== 'none'); if ( ! 'none' !== 'none') { var_dump('success'); } if ( ! 'none2' !== 'none') { var_dump('success'); } if ('none' !== 'none') { var_dump('success'); } if ('none2' !== 'none') { var_dump('success'); }
Output for git.master, git.master_jit, rfc.property-hooks
bool(true) bool(true) string(7) "success" string(7) "success" string(7) "success"

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