crc32

Function • Params and return types changed in PHP 8.0

Calculates the crc32 polynomial of a string.

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

crc32 Function synopsis

crc32(string $string): int

Parameters

$string

Typestring

The data.

Return value

Typeint

Returns the crc32 checksum of $string as an integer.

Changes to the crc32 Function

PHP 8.0

  • Return type added: int
  • Parameter name of parameter #1 changed: $str to $string
  • Parameter type added for parameter #1 ($string): string
- crc32($str)
+ crc32(string $string): int

crc32 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