3v4l.org

run code in 300+ PHP versions simultaneously
<?php say("strcmp(str1, str2): Returns < 0 if str1 is less than str2;\n", " > 0 if str1 is greater than str2, and 0 if they are equal.\n", " http://php.net/manual/en/function.strcmp.php"); # basic test string_lt('a', 'z'); # numeric strings string_lt('22', '123'); # non-numeric strings string_lt('bb', 'abc'); # non-numeric strings with numbers in # should be the same as "numeric strings" if strcmp() really does string comparison string_lt('22x', '123x'); # numbers? who knows? string_lt(22, 123); function string_lt($str1, $str2) { # < operator if ($str1 < $str2) { say("$str1 < $str2"); } if ($str2 < $str1) { say("$str2 < $str1"); } # good old strcmp() if (strcmp($str1, $str2) < 0) { say("strcmp says: $str1 < $str2"); } if (strcmp($str2, $str1) < 0) { say("strcmp says: $str2 < $str1"); } } function say(...$msgs) { foreach ($msgs as $msg) { echo $msg; } echo "\n"; }

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