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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 |
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1229 | * @param array $title { |
1230 | * The document title parts. |
1231 | * |
1232 | * @type string $title Title of the viewed page. |
1233 | * @type string $page Optional. Page number if paginated. |
1234 | * @type string $tagline Optional. Site description when on home page. |
1235 | * @type string $site Optional. Site title when not on home page. |
1236 | * } |
1237 | */ |
1238 | $title = apply_filters( 'document_title_parts', $title ); |
1239 |
|
1240 | $title = implode( " $sep ", array_filter( $title ) ); |
1241 |
|
1242 | /** |
1243 | * Filters the document title. |
1244 | * |
1245 | * @since 5.8.0 |
1246 | * |
1247 | * @param string $title Document title. |