Binary safe case-insensitive string comparison

str_word_count
strchr
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

- preg_match() - Perform a regular expression match
- strcmp() - Binary safe string comparison
- substr() - Return part of a string
- stristr() - Case-insensitive strstr
- strncasecmp() - Binary safe case-insensitive string comparison of the first n characters
- strstr() - Find first occurrence of a string

str_word_count
strchr
String Functions
PHP Manual