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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 |
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4543 | } |
4544 |
|
4545 | /** |
4546 | * Filters the list of URLs allowed to be clicked and followed in the Customizer preview. |
4547 | * |
4548 | * @since 3.4.0 |
4549 | * |
4550 | * @param string[] $allowed_urls An array of allowed URLs. |
4551 | */ |
4552 | $allowed_urls = array_unique( apply_filters( 'customize_allowed_urls', $allowed_urls ) ); |
4553 |
|
4554 | return $allowed_urls; |
4555 | } |
4556 |
|
4557 | /** |
4558 | * Get messenger channel. |
4559 | * |
4560 | * @since 4.7.0 |
4561 | * |