spl_autoload_unregister

Function • Params and return types changed in PHP 8.0

Unregister given function as __autoload() implementation.

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

spl_autoload_unregister Function synopsis

spl_autoload_unregister(callable $callback): bool

Parameters

$callback

Typecallable

The autoload function being unregistered.

Return value

Typebool

Returns true on success, false on failure

Changes to the spl_autoload_unregister Function

PHP 8.0

  • Return type added: bool
  • Parameter name of parameter #1 changed: $autoload_function to $callback
  • Parameter type added for parameter #1 ($callback): callable
- spl_autoload_unregister($autoload_function)
+ spl_autoload_unregister(callable $callback): bool

spl_autoload_unregister 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