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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 |
---|---|
4166 | $pung = preg_split('/\s/', $pung); |
4167 |
|
4168 | /** |
4169 | * Filter the list of already-pinged URLs for the given post. |
4170 | * |
4171 | * @since 2.0.0 |
4172 | * |
4173 | * @param array $pung Array of URLs already pinged for the given post. |
4174 | */ |
4175 | return apply_filters( 'get_pung', $pung ); |
4176 | } |
4177 |
|
4178 | /** |
4179 | * Retrieve URLs that need to be pinged. |
4180 | * |
4181 | * @since 1.5.0 |
4182 | * |
4183 | * @global wpdb $wpdb WordPress database abstraction object. |
4184 | * |