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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 |
---|---|
1044 | * Filter the value of an existing site option. |
1045 | * |
1046 | * The dynamic portion of the hook name, `$option`, refers to the option name. |
1047 | * |
1048 | * @since 2.9.0 As 'site_option_' . $key |
1049 | * @since 3.0.0 |
1050 | * |
1051 | * @param mixed $value Value of site option. |
1052 | */ |
1053 | return apply_filters( 'site_option_' . $option, $value ); |
1054 | } |
1055 |
|
1056 | /** |
1057 | * Add a new site option. |
1058 | * |
1059 | * Existing options will not be updated. Note that prior to 3.3 this wasn't the case. |
1060 | * |
1061 | * @since 2.8.0 |
1062 | * |