这段代码计算两个字符串的长度,然后计算其差值
<?php // This will return a number of how many more characters the longest string has function str_compare_length($str1, $str2){ $len1 = strlen($str1); $len2 = strlen($str2); return abs($len1 - $len2); } echo str_compare_length("This is the first string", "This is the second string"); ?>