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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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6411 |
|
6412 | /** |
6413 | * Filters the pingback remote source. |
6414 | * |
6415 | * @since 2.5.0 |
6416 | * |
6417 | * @param string $remote_source Response source for the page linked from. |
6418 | * @param string $pagelinkedto URL of the page linked to. |
6419 | */ |
6420 | $remote_source = apply_filters( 'pre_remote_source', $remote_source, $pagelinkedto ); |
6421 |
|
6422 | // Work around bug in strip_tags(): |
6423 | $remote_source = str_replace( '<!DOC', '<DOC', $remote_source ); |
6424 | $remote_source = preg_replace( '/[\r\n\t ]+/', ' ', $remote_source ); // normalize spaces |
6425 | $remote_source = preg_replace( "/<\/*(h1|h2|h3|h4|h5|h6|p|th|td|li|dt|dd|pre|caption|input|textarea|button|body)[^>]*>/", "\n\n", $remote_source ); |
6426 |
|
6427 | preg_match( '|<title>([^<]*?)</title>|is', $remote_source, $matchtitle ); |
6428 | $title = isset( $matchtitle[1] ) ? $matchtitle[1] : ''; |
6429 | if ( empty( $title ) ) { |