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Binary safe case-insensitive string comparison
String Functions
PHP Manual

strcasecmp

(PHP 4, PHP 5)

strcasecmp — Binary safe case-insensitive string comparison

Description

int strcasecmp ( string $str1 , string $str2 )

Binary safe case-insensitive string comparison.

Parameters

str1

The first string

str2

The second string

Return Values

Returns < 0 if str1 is less than str2; > 0 if str1 is greater than str2, and 0 if they are equal.

Examples

Example #1 strcasecmp() example

<?php
$var1 = "Hello";
$var2 = "hello";
if (strcasecmp($var1, $var2) == 0) {
    echo '$var1 is equal to $var2 in a case-insensitive string comparison';
}
?>

See Also

  • strcmp() - Binary safe string comparison
  • preg_match() - Perform a regular expression match
  • substr_compare() - Binary safe comparison of two strings from an offset, up to length characters
  • strncasecmp() - Binary safe case-insensitive string comparison of the first n characters
  • stristr() - Case-insensitive strstr
  • substr() - Return part of a string

String Functions
PHP Manual