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PHP strncasecmp() Function

< PHP String Reference

Example

Compare two strings (case-insensitive):

<?php
echo strncasecmp("Hello world!","hello earth!",6);
?>
Run example »

Definition and Usage

The strncasecmp() function compares two strings.

Note: The strncasecmp() is binary-safe and case-insensitive.

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


Syntax

strncasecmp(string1,string2,length)

Parameter Description
string1 Required. Specifies the first string to compare
string2 Required. Specifies the second string to compare
length Required. Specify the number of characters from each string to be used in the comparison

Technical Details

Return Value: This function returns:
  • 0 - if the two strings are equal
  • <0 - if string1 is less than string2
  • >0 - if string1 is greater than string2
PHP Version: 4.0.2+

More Examples

Example 1

Compare two strings (case-insensitive = Hello and hELLo will output the same):

<?php
echo strncasecmp("Hello","Hello",6);
echo "<br>";
echo strncasecmp("Hello","hELLo",6);
?>
Run example »

< PHP String Reference