PHP strnatcmp() Function

The strnatcmp() function in-built string function of PHP. It is used to compare string by using a natural algorithm.

Syntax:

This function strnatcmp():

• returns: <0 if str1 is less than str2;
• returns : >0 if str1 is greater than str2;
• returns: 0 if they are equal.

Note: It is case sensitive.

Example 1

Output:

By Using strnatcmp()Function:-1  

Example 2

Output:

By Using strnatcmp()Function:1  

Example 3

Output:

Standard string comparisonnArray   (   [0] => PHP1   [1] => PHP10   [2] => PHP12   [3] => PHP2   )  nNatural order string comparisonnArray   (     [0] => PHP1      [1] => PHP2       [2] => PHP10      [3] => PHP12    )  

See Also:

• str_pad() : It is used to pad a string to a new length.
• str_ireplace() : It is used to replace some characters in a string (case-insensitive).
• str_repeat() :It is used to repeat a string a specified number of times.

Reference:

http://php.net/manual/en/function.strncmp.php