strnatcmp

Function • Params and return types changed in PHP 8.0

String comparisons using a "natural order" algorithm.

PHP 5
PHP 7
PHP 8.0
Improved
PHP 8.1
PHP 8.2-8.3
PHP 8.4
PHP 8.5
PHP 8.6

strnatcmp Function synopsis

strnatcmp(string $string1, string $string2): int

Parameters

$string1

Typestring

The first string.

$string2

Typestring

The second string.

Return value

Typeint

Changes to the strnatcmp Function

PHP 8.0

  • Return type added: int
  • Parameter name of parameter #1 changed: $s1 to $string1
  • Parameter type added for parameter #1 ($string1): string
  • Parameter name of parameter #2 changed: $s2 to $string2
  • Parameter type added for parameter #2 ($string2): string
- strnatcmp($s1, $s2)
+ strnatcmp(string $string1, string $string2): int

strnatcmp Function Availability

PHP VersionAvailability
PHP 8.6Upcoming Release Yes
PHP 8.5Supported (Latest) Yes
PHP 8.4Supported Yes
PHP 8.3Security-Fixes Only Yes
PHP 8.2Security-Fixes Only Yes
PHP 8.1Unsupported Yes
PHP 8.0Unsupported Yes
PHP 7.4Unsupported Yes
PHP 7.3Unsupported Yes
PHP 7.2Unsupported Yes
PHP 7.1Unsupported Yes
PHP 7.0Unsupported Yes
PHP 5.6Unsupported Yes
PHP 5.5Unsupported Yes
PHP 5.4Unsupported Yes
PHP 5.3Unsupported Yes