strncasecmp – PHP String Functions

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Syntax :

int strncasecmp ( string1, string2, length );

Description :

strncasecmp() function will compare two strings.

Note : Binary safe case-insensitive string comparison function.

Tip : This function is similar to the strcasecmp() function, except that strcasecmp() does not have the length parameter.

Parameter :

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Name, Required /Optional, Value Type, Description

string1, Required, String, It is the first string which will be compared.

string2, Required, String, It is the second string which will be compared.

length, Required, integer, It specifies the number of characters from each string to be used in the comparison.

[/table]

Output :

Return values in this function are:

  • 0 – if the two strings are equal.
  • < 0 – if string1 is less than string2.
  • > 0 – if string1 is greater than string2.

Related articles : substr_compare(),  strcasecmp(), stristr(), substr() .

strncasecmp() – PHP Functions Example 1 : It returns 0, if the two strings are equal.
<?php
// case-insensitive comparison
echo strncasecmp("Hi from tutorialmines.","hI FROM TUTORIALMINES.",10);
?>

Output of above code in the browser is as below:

0
strncasecmp() – PHP Functions Example 2 : It returns 0, if the two strings are equal. Case of character does not matter for it.
<?php
echo strncasecmp("Hi from tutorialmines.","hI FROM TUTORIALMINES.");
echo "<br/>";
echo strncasecmp("Hi from tutorialmines.","hI from Tutorialmines.");
?>

Output of above code in the browser is as below:

0
0

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