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PHP strncasecmp() Function

PHP strncasecmp() function is used to compare two given input strings. It is case-insensitive. It is similar to strcasecmp() function but the only difference is that strcasecmp() function doesn’t have the length parameter.

Syntax:

  strncasecmp($string1, $string2, $length);

Parameter Values

Parameter	Description
string1	This is a required parameter. This parameter defines the first string to compare.
string2	This is a required parameter. This parameter defines the second string to compare.
length	This is a required parameter. This parameter defines the number of characters from each string to be used in the comparison.

Here is an example of strncasecmp() function in PHP:

<html>
<body>

<?php
echo strncasecmp("PhpTpoint","PHPTPOINT..",8);  // returns zero when both the strings are same.
?>

</body>
</html>

Output:
0

Here is an another example of strncasecmp() function in PHP:

<html>
<body>

<?php
$str = "PHPTPOINT";

echo strncasecmp($str,"php",2);  // case insensitive
echo "<br>";
echo strncasecmp($str,"PHP",2);
echo "<br>";
echo strncasecmp($str,"phpT",3);
echo "<br>";
echo strncasecmp($str,"phpT",7); // first string is greater than second string.

?>

</body>
</html>

Output:
0
0
0
3

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