WP hooks navigation: Home/browse • Actions index • Filters index
To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
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 |
|---|---|
| 100 | * @return bool|string False on failure, otherwise the oEmbed provider URL. |
| 101 | */ |
| 102 | function discover( $url ) { |
| 103 | $providers = array(); |
| 104 | |
| 105 | // Fetch URL content |
| 106 | if ( $html = wp_remote_retrieve_body( wp_remote_get( $url ) ) ) { |
| 107 | |
| 108 | // <link> types that contain oEmbed provider URLs |
| 109 | $linktypes = apply_filters( 'oembed_linktypes', array( |
| 110 | 'application/json+oembed' => 'json', |
| 111 | 'text/xml+oembed' => 'xml', |
| 112 | 'application/xml+oembed' => 'xml', // Incorrect, but used by at least Vimeo |
| 113 | ) ); |
| 114 | |
| 115 | // Strip <body> |
| 116 | $html = substr( $html, 0, stripos( $html, '</head>' ) ); |
| 117 | |
| 118 | // Do a quick check |