w3resource

PHP : strcasecmp() function

Description

The strcasecmp() function is used to compare two case sensitive strings.

Version:

(PHP 4 and above)

Syntax:

strcasecmp(string1, string2)

Parameters:

Name Description Required /
Optional		 Type
string1 The first string. Required String
string2 The second string. Required String

Return value:

Returns < 0 when string1 is less than string2 and > 0 when string1 is greater than string2 and 0 when both string1 and string2 are equal.

Value Type: Integer.

Example of php strcasecmp() function

<?php
$string1='ww3resource';
$string2='W3resource';
$result=strcasecmp($string1,$string2);
echo $result; 
?>

Output:

68

View the example in the browser

See also

PHP Function Reference

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Next: strchr



PHP: Tips of the Day

In PHP, there are two versions of logical AND and OR operators.

Operator True if
$a and $b Both $a and $b are true
$a && $b Both $a and $b are true
$a or $b Either $a or $b is true
$a || $b Either $a or $b is true

Note that the && and || opererators have higher precedence than and and or. See table below:

Evaluation Result of $e Evaluated as
$e = false || true True $e = (false || true)
$e = false or true False ($e = false) or true

Because of this it's safer to use && and || instead of and and or.