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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" )
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.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
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468 | /** |
469 | * Fires immediately before an option value is updated. |
470 | * |
471 | * @since 2.9.0 |
472 | * |
473 | * @param string $option Name of the option to update. |
474 | * @param mixed $old_value The old option value. |
475 | * @param mixed $value The new option value. |
476 | */ |
477 | do_action( 'update_option', $option, $old_value, $value ); |
478 |
|
479 | $update_args = array( |
480 | 'option_value' => $serialized_value, |
481 | ); |
482 |
|
483 | if ( null !== $autoload ) { |
484 | $update_args['autoload'] = ( 'no' === $autoload || false === $autoload ) ? 'no' : 'yes'; |
485 | } |
486 |
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