(PHP 4 >= 4.0.2, PHP 5, PHP 7)
strncasecmp — Binary safe case-insensitive string comparison of the first n characters
strncasecmp ( string $str1 , string $str2 , int $len ) : int
This function is similar to strcasecmp(), with the difference that you can specify the (upper limit of the) number of characters from each string to be used in the comparison.
str1
The first string.
str2
The second string.
len
The length of strings to be used in the comparison.
Returns < 0 if str1
is less than str2
; > 0 if str1
is greater than str2
, and 0 if they are equal.
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https://www.php.net/manual/en/function.strncasecmp.php