, here is a compare function that compares strings by the case-insensitive method, unless it finds a grade, in which case it correctly sorts by putting "plus" grades first, unmarked grades second, and "minus" grades last. <?php function cmp($a, $b) { $a = preg_replace('@^(a|an...
1. 忽略大小写的差集 functionarray_diff_case_insensitive($array1,$array2){$lower1=array_map('strtolower',$array1);$lower2=array_map('strtolower',$array2);$diff_keys=array_diff($lower1,$lower2);returnarray_intersect_key($array1,$diff_keys); } AI代码助手复制代码 2. 保留重复值的差集 f...
This means thatstrcasecmp()function accepts two string (comma separated) as input to compare and returns an int (integer). See the following table to understand the above function definition in an easy way: Explanation ofstrcasecmp()function definition ...
strtolower — Make a string lowercase strtoupper — Make a string uppercase strtr — Translate certain characters substr_compare — Binary safe optionally case insensitive comparison of 2 strings from an offset, up to length characters substr_count — Count the number of substring occurrences substr_...
substr_compare() 从指定的开始位置(二进制安全和选择性区分大小写)比较两个字符串。 substr_count() 计算子串在字符串中出现的次数。 substr_replace() 把字符串的一部分替换为另一个字符串。 trim() 移除字符串两侧的空白字符和其他字符。 ucfirst() 把字符串中的首字符转换为大写。 ucwords() 把字符串中每...
substr_compare()函數是PHP中的內置函數,它有助於比較從指定的起始位置到指定長度的兩個字符串。 用法: intsubstr_compare($str1, $str2, $startpos, $len, $caseInsensitive) 參數:此函數總共接受五個參數,其中前三個必須提供,其餘兩個是可選的。所有這些參數如下所述: ...
If the two strings has the same 1st character, then compare the 2nd character and so on. 1 2 3 4 5 6 <?PHP $diff=strcmp("jhb","jha"); echo "$diff"; //1 $diff=strcmp("jha","jhb"); echo "$diff"; //-1 ?> If the 1st string and the 2nd string has the same first ...
case-sensitive safe binary string comparison function that returns 0 if the strings match. The strcasecmp() function is similar but performs a case-insensitive comparison. In this PHP String Compare example, we compare strings using the ("==") operator. Click Execute to run the PHP Compare ...
functioncompareFunc($a,$b) {if($a===$b)return0;return($a>$b) ? 1 : -1; }$array1= ['a','b','c'];$array2= ['B','C','D'];$result= array_uintersect($array1,$array2,'strcasecmp'); // 输出: [1 =>'b', 2 =>'c'] ...
参见 ¶ strncmp() - 二进制安全比较字符串开头的若干个字符 preg_match() - 执行匹配正则表达式 substr_compare() - 二进制安全比较字符串(从偏移位置比较指定长度) strcasecmp() - 二进制安全比较字符串(不区分大小写) stristr() - strstr 函数的忽略大小写版本 substr() - 返回字符串的子串...