filter_id

Function • Params and return types changed in PHP 8.0

Returns the filter ID belonging to a named filter.

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

filter_id Function synopsis

filter_id(string $name): int|false

Parameters

$name

Typestring

Name of a filter to get.

Return value

Typeint|false

ID of a filter on success or false if filter doesn't exist.

Changes to the filter_id Function

PHP 8.0

  • Return type added: int|false
  • Parameter name of parameter #1 changed: $filtername to $name
  • Parameter type added for parameter #1 ($name): string
- filter_id($filtername)
+ filter_id(string $name): int|false

filter_id Function Availability

PHP VersionAvailability
PHP 8.6Upcoming Release Yes
PHP 8.5Supported (Latest) Yes
PHP 8.4Supported Yes
PHP 8.3Supported Yes
PHP 8.2Security-Fixes Only Yes
PHP 8.1Security-Fixes Only 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