media_upload_form_handler(): null|array|void

Source

function media_upload_form_handler() {	check_admin_referer( 'media-form' );	$errors = null;	if ( isset( $_POST['send'] ) ) {	$keys = array_keys( $_POST['send'] );	$send_id = (int) reset( $keys );	}	if ( ! empty( $_POST['attachments'] ) ) {	foreach ( $_POST['attachments'] as $attachment_id => $attachment ) {	$post = get_post( $attachment_id, ARRAY_A );	$_post = $post;	if ( ! current_user_can( 'edit_post', $attachment_id ) ) {	continue;	}	if ( isset( $attachment['post_content'] ) ) {	$post['post_content'] = $attachment['post_content'];	}	if ( isset( $attachment['post_title'] ) ) {	$post['post_title'] = $attachment['post_title'];	}	if ( isset( $attachment['post_excerpt'] ) ) {	$post['post_excerpt'] = $attachment['post_excerpt'];	}	if ( isset( $attachment['menu_order'] ) ) {	$post['menu_order'] = $attachment['menu_order'];	}	if ( isset( $send_id ) && $attachment_id === $send_id ) {	if ( isset( $attachment['post_parent'] ) ) {	$post['post_parent'] = $attachment['post_parent'];	}	}	/** * Filters the attachment fields to be saved. * * @since 2.5.0 * * @see wp_get_attachment_metadata() * * @param array $post An array of post data. * @param array $attachment An array of attachment metadata. */	$post = apply_filters( 'attachment_fields_to_save', $post, $attachment );	if ( isset( $attachment['image_alt'] ) ) {	$image_alt = wp_unslash( $attachment['image_alt'] );	if ( get_post_meta( $attachment_id, '_wp_attachment_image_alt', true ) !== $image_alt ) {	$image_alt = wp_strip_all_tags( $image_alt, true );	// update_post_meta() expects slashed.	update_post_meta( $attachment_id, '_wp_attachment_image_alt', wp_slash( $image_alt ) );	}	}	if ( isset( $post['errors'] ) ) {	$errors[ $attachment_id ] = $post['errors'];	unset( $post['errors'] );	}	if ( $post != $_post ) {	wp_update_post( $post );	}	foreach ( get_attachment_taxonomies( $post ) as $t ) {	if ( isset( $attachment[ $t ] ) ) {	wp_set_object_terms( $attachment_id, array_map( 'trim', preg_split( '/,+/', $attachment[ $t ] ) ), $t, false );	}	}	}	}	if ( isset( $_POST['insert-gallery'] ) || isset( $_POST['update-gallery'] ) ) {	?>	<script type="text/javascript">	var win = window.dialogArguments || opener || parent || top;	win.tb_remove();	</script>	<?php	exit;	}	if ( isset( $send_id ) ) {	$attachment = wp_unslash( $_POST['attachments'][ $send_id ] );	$html = isset( $attachment['post_title'] ) ? $attachment['post_title'] : '';	if ( ! empty( $attachment['url'] ) ) {	$rel = '';	if ( str_contains( $attachment['url'], 'attachment_id' ) || get_attachment_link( $send_id ) === $attachment['url'] ) {	$rel = " rel='attachment wp-att-" . esc_attr( $send_id ) . "'";	}	$html = "<a href='{$attachment['url']}'$rel>$html</a>";	}	/** * Filters the HTML markup for a media item sent to the editor. * * @since 2.5.0 * * @see wp_get_attachment_metadata() * * @param string $html HTML markup for a media item sent to the editor. * @param int $send_id The first key from the $_POST['send'] data. * @param array $attachment Array of attachment metadata. */	$html = apply_filters( 'media_send_to_editor', $html, $send_id, $attachment );	return media_send_to_editor( $html );	}	return $errors; } 

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