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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 |
|---|---|
| 282 | $keys = array_keys($_POST['send']); |
| 283 | $send_id = (int) array_shift($keys); |
| 284 | $attachment = $_POST['attachments'][$send_id]; |
| 285 | $html = $attachment['post_title']; |
| 286 | if ( !empty($attachment['url']) ) { |
| 287 | if ( strpos($attachment['url'], 'attachment_id') || false !== strpos($attachment['url'], get_permalink($_POST['post_id'])) ) |
| 288 | $rel = " rel='attachment wp-att-".attribute_escape($send_id)."'"; |
| 289 | $html = "<a href='{$attachment['url']}'$rel>$html</a>"; |
| 290 | } |
| 291 | $html = apply_filters('media_send_to_editor', $html, $send_id, $attachment); |
| 292 | return media_send_to_editor($html); |
| 293 | } |
| 294 | |
| 295 | return $errors; |
| 296 | } |
| 297 | |
| 298 | function media_upload_image() { |
| 299 | if ( isset($_POST['html-upload']) && !empty($_FILES) ) { |
| 300 | // Upload File button was clicked |