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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 |
|---|---|
| 905 | $prefix = " $sep "; |
| 906 | |
| 907 | /** |
| 908 | * Filter the parts of the page title. |
| 909 | * |
| 910 | * @since 4.0.0 |
| 911 | * |
| 912 | * @param array $title_array Parts of the page title. |
| 913 | */ |
| 914 | $title_array = apply_filters( 'wp_title_parts', explode( $t_sep, $title ) ); |
| 915 | |
| 916 | // Determines position of the separator and direction of the breadcrumb |
| 917 | if ( 'right' == $seplocation ) { // sep on right, so reverse the order |
| 918 | $title_array = array_reverse( $title_array ); |
| 919 | $title = implode( " $sep ", $title_array ) . $prefix; |
| 920 | } else { |
| 921 | $title = $prefix . implode( " $sep ", $title_array ); |
| 922 | } |
| 923 | |