strnatcmp | Functions | PHP

String comparisons using a "natural order" algorithm

Syntax

strnatcmp ( string $str1 , string $str2 ) : int

Parameters

str1

The first string.

str2

The second string.

Return

Similar to other string comparison functions, this one returns < 0 if str1 is less than str2; > 0 if str1 is greater than str2, and 0 if they are equal.

Examples

1

<?

$str1 = "case";
$str2 = "CASE";

$return = strnatcmp($str1, $str2);

echo $return;

?>

2

<?

$str1 = "same";
$str2 = "same";

$return = strnatcmp($str1, $str2);

echo $return;

?>

3

<?

$str1 = "same";
$str2 = "different";

$return = strnatcmp($str1, $str2);

echo $return;

?>

4

<?

$str1 = "different";
$str2 = "same";

$return = strnatcmp($str1, $str2);

echo $return;

?>

-1

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