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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 528 | * |
| 529 | * The dynamic portion of the hook name, `$option`, refers to the option name. |
| 530 | * |
| 531 | * @since 2.5.0 As "add_option_{$name}" |
| 532 | * @since 3.0.0 |
| 533 | * |
| 534 | * @param string $option Name of the option to add. |
| 535 | * @param mixed $value Value of the option. |
| 536 | */ |
| 537 | do_action( "add_option_{$option}", $option, $value ); |
| 538 | |
| 539 | /** |
| 540 | * Fires after an option has been added. |
| 541 | * |
| 542 | * @since 2.9.0 |
| 543 | * |
| 544 | * @param string $option Name of the added option. |
| 545 | * @param mixed $value Value of the option. |
| 546 | */ |