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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 |
|---|---|
| 503 | foreach ( (array) $val as $enc ) { |
| 504 | $enclosure = explode("\n", $enc); |
| 505 | /** |
| 506 | * Filter the atom enclosure HTML link tag for the current post. |
| 507 | * |
| 508 | * @since 2.2.0 |
| 509 | * |
| 510 | * @param string $html_link_tag The HTML link tag with a URI and other attributes. |
| 511 | */ |
| 512 | echo apply_filters( 'atom_enclosure', '<link href="' . trim( htmlspecialchars( $enclosure[0] ) ) . '" rel="enclosure" length="' . trim( $enclosure[1] ) . '" type="' . trim( $enclosure[2] ) . '" />' . "\n" ); |
| 513 | } |
| 514 | } |
| 515 | } |
| 516 | } |
| 517 | |
| 518 | /** |
| 519 | * Determine the type of a string of data with the data formatted. |
| 520 | * |
| 521 | * Tell whether the type is text, html, or xhtml, per RFC 4287 section 3.1. |