Core Function
View Source on Trac ↗ _wp_filter_build_unique_id()
_wp_filter_build_unique_id( mixed $hook_name, mixed $callback, mixed $priority ) Builds a unique string ID for a hook callback function.
Parameters 3 required
| Name / Type | Description |
|---|---|
| $hook_name string | Unused. The name of the filter to build ID for. Required |
| mixed | (callable | string | array) $callback The callback to generate ID for. The callback may or may not exist. Required |
| int | $priority Unused. The order in which the functions associated with a particular action are executed. Required |
Return Value
(string)
Unique function ID for usage as array key.
Function Information
Since Version
2.2.3
Source File
wp-includes/plugin.php
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