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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 |
---|---|
848 | /** |
849 | * Filter the text of the page title. |
850 | * |
851 | * @since 2.0.0 |
852 | * |
853 | * @param string $title Page title. |
854 | * @param string $sep Title separator. |
855 | * @param string $seplocation Location of the separator (left or right). |
856 | */ |
857 | $title = apply_filters( 'wp_title', $title, $sep, $seplocation ); |
858 |
|
859 | // Send it out |
860 | if ( $display ) |
861 | echo $title; |
862 | else |
863 | return $title; |
864 |
|
865 | } |
866 |
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