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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 |
|---|---|
| 6267 | |
| 6268 | /** |
| 6269 | * Filter the pingback remote source. |
| 6270 | * |
| 6271 | * @since 2.5.0 |
| 6272 | * |
| 6273 | * @param string $linea Response object for the page linked from. |
| 6274 | * @param string $pagelinkedto URL of the page linked to. |
| 6275 | */ |
| 6276 | $linea = apply_filters( 'pre_remote_source', $linea, $pagelinkedto ); |
| 6277 | |
| 6278 | // Work around bug in strip_tags(): |
| 6279 | $linea = str_replace('<!DOC', '<DOC', $linea); |
| 6280 | $linea = preg_replace( '/[\r\n\t ]+/', ' ', $linea ); // normalize spaces |
| 6281 | $linea = preg_replace( "/<\/*(h1|h2|h3|h4|h5|h6|p|th|td|li|dt|dd|pre|caption|input|textarea|button|body)[^>]*>/", "\n\n", $linea ); |
| 6282 | |
| 6283 | preg_match('|<title>([^<]*?)</title>|is', $linea, $matchtitle); |
| 6284 | $title = $matchtitle[1]; |
| 6285 | if ( empty( $title ) ) |