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run code in 150+ php & hhvm versions
Bugs & Features
<?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 '-1 vs NULL: '; compare_comparisons(-1, NULL);
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
-1 vs NULL: min() gives:NULL comparison with < gives:NULL