PHP strnatcmp() Function

PHP strnatcmp() Function

The strnatcmp() function in PHP compares two strings using a "natural" algorithm. It is case-sensitive.

Syntax

strnatcmp ( string $str1 , string $str2 )

Parameter

str1(required)- This parameter represents the first string.

str2(required)- This parameter represents the second string.

Return

This function returns a value less than( < 0) if str1 is less than str2.

It returns a value greater than( > 0) if the parameter str1 is greater than str2.

It returns a value 0 if both the parameters str1 and str2 are equal.

Example 1

Output

String 1: Hello World
String 2: hello world
The strnatcmp() function returns -1 

Example 2

Output

String 1: hello World
String 2: Hello PHP 
The strnatcmp() function returns 1 

Example 3

Output

"Hello" is equal to "Hello" in a case-sensitive string comparison

Example 4

Output

Case 1: When str2 is greater than str1...
The strnatcmp() function returns -1
Case 2: When str1 is greater than str2...
The strnatcmp() function returns 1