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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 |
---|---|
1293 | /** |
1294 | * Filters the text of the page title. |
1295 | * |
1296 | * @since 2.0.0 |
1297 | * |
1298 | * @param string $title Page title. |
1299 | * @param string $sep Title separator. |
1300 | * @param string $seplocation Location of the separator (left or right). |
1301 | */ |
1302 | $title = apply_filters( 'wp_title', $title, $sep, $seplocation ); |
1303 |
|
1304 | // Send it out |
1305 | if ( $display ) { |
1306 | echo $title; |
1307 | } else { |
1308 | return $title; |
1309 | } |
1310 | } |
1311 |
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