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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 |
---|---|
132 | * |
133 | * @since 1.5.0 As 'option_' . $setting |
134 | * @since 3.0.0 |
135 | * @since 4.4.0 The `$option` parameter was added. |
136 | * |
137 | * @param mixed $value Value of the option. If stored serialized, it will be |
138 | * unserialized prior to being returned. |
139 | * @param string $option Option name. |
140 | */ |
141 | return apply_filters( "option_{$option}", maybe_unserialize( $value ), $option ); |
142 | } |
143 |
|
144 | /** |
145 | * Protect WordPress special option from being modified. |
146 | * |
147 | * Will die if $option is in protected list. Protected options are 'alloptions' |
148 | * and 'notoptions' options. |
149 | * |
150 | * @since 2.2.0 |