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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 |
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1403 | /** |
1404 | * Filters the text of the page title. |
1405 | * |
1406 | * @since 2.0.0 |
1407 | * |
1408 | * @param string $title Page title. |
1409 | * @param string $sep Title separator. |
1410 | * @param string $seplocation Location of the separator ('left' or 'right'). |
1411 | */ |
1412 | $title = apply_filters( 'wp_title', $title, $sep, $seplocation ); |
1413 |
|
1414 | // Send it out. |
1415 | if ( $display ) { |
1416 | echo $title; |
1417 | } else { |
1418 | return $title; |
1419 | } |
1420 | } |
1421 |
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