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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 |
---|---|
139 | * Fires when the {@see WP_Customize_Setting::preview()} method is called for settings |
140 | * not handled as theme_mods or options. |
141 | * |
142 | * The dynamic portion of the hook name, `$this->type`, refers to the setting type. |
143 | * |
144 | * @since 4.1.0 |
145 | * |
146 | * @param WP_Customize_Setting $this {@see WP_Customize_Setting} instance. |
147 | */ |
148 | do_action( "customize_preview_{$this->type}", $this ); |
149 | } |
150 | } |
151 |
|
152 | /** |
153 | * Callback function to filter the theme mods and options. |
154 | * |
155 | * @since 3.4.0 |
156 | * @uses WP_Customize_Setting::multidimensional_replace() |
157 | * |