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<?php var_dump( filter_var( 0, FILTER_VALIDATE_BOOLEAN ) ); var_dump( filter_var( '0', FILTER_VALIDATE_BOOLEAN ) ); var_dump( filter_var( 1, FILTER_VALIDATE_BOOLEAN ) ); var_dump( filter_var( '1', FILTER_VALIDATE_BOOLEAN ) );
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
bool(false) bool(false) bool(true) bool(true)
preferences:
141.42 ms | 404 KiB | 189 Q