strncasecmp in PHP

 PHP strncasecmp() function is  identical to strcmp() function ,except that lowercase and uppercase Versions of the same letter compare as equal.

The function returns :

0 –if the two strings are exactly equivalent
<0 – if smaller byte is found in the string1.
>0 – if smaller byte is found in the string2.
Syntax:

strncasecmp(string1,string2,length)
string1 : Required.Specifies the first string.

string2 : Required. Specifies the second string.

length : Required. Specify the number of characters to use in the comparison.

Tip: This function is binary safe and case-insensitive.

Example:

<?php
echo strncasecmp("good morning","Good Night",6);
?>
Output will be:
-1