The strnatcmp() function is used compare two strings with a natural order algorithm.
Syntax
strnatcmp(str1, str2)
Parameters
str1 − First string to compare.
str2 − Second string to compare
Return
The strnatcmp() function returns −
0 - if the two strings are equal
<0 - if string1 is less than string2
>0 - if string1 is greater than string2
Example
The following is an example −
<?php
echo strnatcmp("Test", "TEST");
?>Output
The following is the output −
1
Example
Let us see another example −
<?php
echo strnatcmp("5Demo", "50DEMO");
echo "\n";
echo strnatcmp("50Demo", "5DEMO");
echo "\n";
echo strnatcmp("100Demo", "100Demo");
?>Output
The following is the output −
-1 1 0