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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 |
---|---|
1096 | /** |
1097 | * Filter the text of the page title. |
1098 | * |
1099 | * @since 2.0.0 |
1100 | * |
1101 | * @param string $title Page title. |
1102 | * @param string $sep Title separator. |
1103 | * @param string $seplocation Location of the separator (left or right). |
1104 | */ |
1105 | $title = apply_filters( 'wp_title', $title, $sep, $seplocation ); |
1106 |
|
1107 | // Send it out |
1108 | if ( $display ) { |
1109 | echo $title; |
1110 | } else { |
1111 | return $title; |
1112 | } |
1113 | } |
1114 |
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