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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 |
---|---|
3323 | $html = isset( $attachment['post_title'] ) ? $attachment['post_title'] : ''; |
3324 | $rel = $rel ? ' rel="attachment wp-att-' . $id . '"' : ''; // Hard-coded string, $id is already sanitized. |
3325 |
|
3326 | if ( ! empty( $url ) ) { |
3327 | $html = '<a href="' . esc_url( $url ) . '"' . $rel . '>' . $html . '</a>'; |
3328 | } |
3329 | } |
3330 |
|
3331 | /** This filter is documented in wp-admin/includes/media.php */ |
3332 | $html = apply_filters( 'media_send_to_editor', $html, $id, $attachment ); |
3333 |
|
3334 | wp_send_json_success( $html ); |
3335 | } |
3336 |
|
3337 | /** |
3338 | * Ajax handler for sending a link to the editor. |
3339 | * |
3340 | * Generates the HTML to send a non-image embed link to the editor. |
3341 | * |