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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 |
|---|---|
| 3271 | $html = isset( $attachment['post_title'] ) ? $attachment['post_title'] : ''; |
| 3272 | $rel = $rel ? ' rel="attachment wp-att-' . $id . '"' : ''; // Hard-coded string, $id is already sanitized. |
| 3273 | |
| 3274 | if ( ! empty( $url ) ) { |
| 3275 | $html = '<a href="' . esc_url( $url ) . '"' . $rel . '>' . $html . '</a>'; |
| 3276 | } |
| 3277 | } |
| 3278 | |
| 3279 | /** This filter is documented in wp-admin/includes/media.php */ |
| 3280 | $html = apply_filters( 'media_send_to_editor', $html, $id, $attachment ); |
| 3281 | |
| 3282 | wp_send_json_success( $html ); |
| 3283 | } |
| 3284 | |
| 3285 | /** |
| 3286 | * Ajax handler for sending a link to the editor. |
| 3287 | * |
| 3288 | * Generates the HTML to send a non-image embed link to the editor. |
| 3289 | * |