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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 |
---|---|
3232 | $html = isset( $attachment['post_title'] ) ? $attachment['post_title'] : ''; |
3233 | $rel = $rel ? ' rel="attachment wp-att-' . $id . '"' : ''; // Hard-coded string, $id is already sanitized. |
3234 |
|
3235 | if ( ! empty( $url ) ) { |
3236 | $html = '<a href="' . esc_url( $url ) . '"' . $rel . '>' . $html . '</a>'; |
3237 | } |
3238 | } |
3239 |
|
3240 | /** This filter is documented in wp-admin/includes/media.php */ |
3241 | $html = apply_filters( 'media_send_to_editor', $html, $id, $attachment ); |
3242 |
|
3243 | wp_send_json_success( $html ); |
3244 | } |
3245 |
|
3246 | /** |
3247 | * Ajax handler for sending a link to the editor. |
3248 | * |
3249 | * Generates the HTML to send a non-image embed link to the editor. |
3250 | * |