spl_autoload_extensions

Function • Params and return types changed in PHP 8.0

Register and return default file extensions for spl_autoload.

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_extensions Function synopsis

spl_autoload_extensions(?string $file_extensions = null): string

Parameters

$file_extensions

OptionalType?stringDefault valuenull

If null, it simply returns the current list of extensions each separated by comma. To modify the list of file extensions, simply invoke the functions with the new list of file extensions to use in a single string with each extensions separated by comma.

Return value

Typestring

A comma delimited list of default file extensions for spl_autoload.

Changes to the spl_autoload_extensions Function

PHP 8.0

  • Return type added: string
  • Parameter type added for parameter #1 ($file_extensions): ?string
  • Parameter default value added for position #1 ($file_extensions): null
- spl_autoload_extensions($file_extensions)
+ spl_autoload_extensions(?string $file_extensions = null): string

spl_autoload_extensions 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