w3resource

PHP: strnatcmp() function

Description

The strnatcmp() function compare two strings using a "natural order" algorithm. This comparison is case sensitive.

Version:

(PHP 4 and above)

Syntax:

strnatcmp(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
echo strnatcmp('w3resource.com', 'W3RESOURCE.com');
?>

Output:

1 

View the example in the browser

See also

PHP Function Reference

Previous: strlen
Next: strncasecmp



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