w3resource

PHP: strcmp() function

Description

The strcmp() function is used to compare two strings.

Version:

(PHP 4 and above)

Syntax:

strcmp(string1, string2)

Parameters:

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

Return value:

<0 : if string1<string2.
>0 : if string1>string2.
=0 : if string1=string2.

Value Type: Integer.

Example: 

<?php
$string1='w3resource';
$string2='W3resource';
$result=strcmp($string1,$string2);
echo $result; 
?>

Output:

1

View the example in the browser

See also

PHP Function Reference

Previous: strchr
Next: strcoll



PHP: Tips of the Day

A resource is a special type of variable that references an external resource, such as a file, socket, stream, document, or connection

Example:

$file = fopen('/etc/passwd', 'r');
echo gettype($file);
# Out: resource
echo $file;
# Out: Resource id #2

There are different (sub-)types of resource. You can check the resource type using get_resource_type():

$file = fopen('/etc/passwd', 'r'); 
echo get_resource_type($file);
#Out: stream
$sock = fsockopen('www.google.com', 80);
echo get_resource_type($sock);
#Out: stream