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<?php function which_is_lower($a, $b) { if ( $a < $b ) { return $a; } else { return $b; } } function compare_comparisons($a, $b) { echo 'min() gives:'; var_dump( min($a, $b) ); echo 'comparison with < gives:'; var_dump( which_is_lower($a, $b) ); } echo PHP_EOL, '-1 vs NULL: ', PHP_EOL; compare_comparisons(-1, NULL); echo PHP_EOL, '1 vs NULL: ', PHP_EOL; compare_comparisons(1, NULL); echo PHP_EOL, '-1 vs FALSE: ', PHP_EOL; compare_comparisons(-1, FALSE); echo PHP_EOL, '1 vs FALSE: ', PHP_EOL; compare_comparisons(1, FALSE); echo PHP_EOL, '-1 vs TRUE: ', PHP_EOL; compare_comparisons(-1, FALSE); echo PHP_EOL, '1 vs TRUE: ', PHP_EOL; compare_comparisons(1, FALSE);
Output for git.master, git.master_jit, rfc.property-hooks
-1 vs NULL: min() gives:NULL comparison with < gives:NULL 1 vs NULL: min() gives:NULL comparison with < gives:NULL -1 vs FALSE: min() gives:bool(false) comparison with < gives:bool(false) 1 vs FALSE: min() gives:bool(false) comparison with < gives:bool(false) -1 vs TRUE: min() gives:bool(false) comparison with < gives:bool(false) 1 vs TRUE: min() gives:bool(false) comparison with < gives:bool(false)

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