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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 |
|---|---|
| 1149 | /** |
| 1150 | * Filter the array of tags for the given post. |
| 1151 | * |
| 1152 | * @since 2.3.0 |
| 1153 | * |
| 1154 | * @see get_the_terms() |
| 1155 | * |
| 1156 | * @param array $terms An array of tags for the given post. |
| 1157 | */ |
| 1158 | return apply_filters( 'get_the_tags', get_the_terms( $id, 'post_tag' ) ); |
| 1159 | } |
| 1160 | |
| 1161 | /** |
| 1162 | * Retrieve the tags for a post formatted as a string. |
| 1163 | * |
| 1164 | * @since 2.3.0 |
| 1165 | * |
| 1166 | * @param string $before Optional. Before tags. |
| 1167 | * @param string $sep Optional. Between tags. |