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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 |
|---|---|
| 3293 | $html = isset( $attachment['post_title'] ) ? $attachment['post_title'] : ''; |
| 3294 | $rel = $rel ? ' rel="attachment wp-att-' . $id . '"' : ''; // Hard-coded string, $id is already sanitized. |
| 3295 | |
| 3296 | if ( ! empty( $url ) ) { |
| 3297 | $html = '<a href="' . esc_url( $url ) . '"' . $rel . '>' . $html . '</a>'; |
| 3298 | } |
| 3299 | } |
| 3300 | |
| 3301 | /** This filter is documented in wp-admin/includes/media.php */ |
| 3302 | $html = apply_filters( 'media_send_to_editor', $html, $id, $attachment ); |
| 3303 | |
| 3304 | wp_send_json_success( $html ); |
| 3305 | } |
| 3306 | |
| 3307 | /** |
| 3308 | * Ajax handler for sending a link to the editor. |
| 3309 | * |
| 3310 | * Generates the HTML to send a non-image embed link to the editor. |
| 3311 | * |