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<?php $a = [ 23 => [ 'foo' ], 42 => 'bar', ]; var_dump( filter_var( $a, FILTER_UNSAFE_RAW ) ); var_dump( filter_var( $a[23], FILTER_UNSAFE_RAW ) ); var_dump( filter_var( $a[42], FILTER_UNSAFE_RAW ) );
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 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) string(3) "bar"
preferences:
167.85 ms | 404 KiB | 219 Q