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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 |
---|---|
937 | /** |
938 | * Filter the text of the page title. |
939 | * |
940 | * @since 2.0.0 |
941 | * |
942 | * @param string $title Page title. |
943 | * @param string $sep Title separator. |
944 | * @param string $seplocation Location of the separator (left or right). |
945 | */ |
946 | $title = apply_filters( 'wp_title', $title, $sep, $seplocation ); |
947 |
|
948 | // Send it out |
949 | if ( $display ) |
950 | echo $title; |
951 | else |
952 | return $title; |
953 |
|
954 | } |
955 |
|