int strcasecmp ( string $str1 , string $str2 ) This means thatstrcasecmp()function accepts two string (comma separated) as input to compare and returns an int (integer). See the following table to understand the
1. 忽略大小写的差集 functionarray_diff_case_insensitive($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...
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: $str1(必填):此參數表示要比較的第...
, here is a compare function that compares strings by the case-insensitive method, unless it finds a grade, in which case it correctly sorts by putting "plus" grades first, unmarked grades second, and "minus" grades last. <?php function cmp($a, $b) { $a = preg_replace('@^(a|an...
strtoupper — Make a string uppercase strtr — Translate certain characters substr_compare — Binary safe optionally case insensitive comparison of 2 strings from an offset, up to length characters substr_count — Count the number of substring occurrences ...
function case_insensitive_compare($a, $b): int { return strcasecmp($a, $b); } $array1 = ["A" => "Apple", "B" => "Banana"]; $array2 = ["a" => "apple", "b" => "berry"]; $result = array_udiff_assoc($array1, $array2, 'case_insensitive_compare'); ...
This function is case-sensitive. For case-insensitive comparisons, use the strnatcasecmp() function.The following table summarizes the technical details of this function.Return Value: Returns a negative value (< 0) if string1 is less than string2; a positive value (> 0) if string1 is ...
Example Compare two strings (case-insensitive = Hello and hELLo will output the same): <?phpecho strncasecmp("Hello","Hello",6);echo "";echo strncasecmp("Hello","hELLo",6); ?> Try it Yourself » ❮ PHP String Reference Track...
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 ...
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 ...