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

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