Core Function
View Source on Trac ↗ add_action()
add_action(
mixed $hook_name,
mixed $callback,
mixed $priority = 10,
mixed $accepted_args = 1
) Adds a callback function to an action hook.
Parameters 3 required
| Name / Type | Description |
|---|---|
| $hook_name string | The name of the action to add the callback to. Required |
| $callback callable | The callback to be run when the action is called. Required |
| int | $priority Optional. Used to specify the order in which the functions associated with a particular action are executed. Lower numbers correspond with earlier execution, and functions with the same priority are executed in the order in which they were added to the action. Default 10. Required |
| $accepted_args int | Optional. The number of arguments the function accepts. Default 1. |
Return Value
(true)
Always returns true.
Function Information
Since Version
1.2.0
Source File
wp-includes/plugin.php
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