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media_handle_sideload( array $file_array, int $post_id, string $desc = null, array $post_data = array() )

Handles a side-loaded file in the same way as an uploaded file is handled by media_handle_upload().

Parameters

$file_array

(array) (Required) Array similar to a $_FILES upload array.

$post_id

(int) (Optional) The post ID the media is associated with.

$desc

(string) (Optional) Description of the side-loaded file.

Default value: null

$post_data

(array) (Optional) Post data to override.

Default value: array()

Return

(int|WP_Error) The ID of the attachment or a WP_Error on failure.

Source

File: wp-admin/includes/media.php

function media_handle_sideload( $file_array, $post_id = 0, $desc = null, $post_data = array() ) {
	$overrides = array( 'test_form' => false );

	$time = current_time( 'mysql' );
	$post = get_post( $post_id );

	if ( $post ) {
		if ( substr( $post->post_date, 0, 4 ) > 0 ) {
			$time = $post->post_date;
		}
	}

	$file = wp_handle_sideload( $file_array, $overrides, $time );

	if ( isset( $file['error'] ) ) {
		return new WP_Error( 'upload_error', $file['error'] );
	}

	$url     = $file['url'];
	$type    = $file['type'];
	$file    = $file['file'];
	$title   = preg_replace( '/\.[^.]+$/', '', wp_basename( $file ) );
	$content = '';

	// Use image exif/iptc data for title and caption defaults if possible.
	$image_meta = wp_read_image_metadata( $file );

	if ( $image_meta ) {
		if ( trim( $image_meta['title'] ) && ! is_numeric( sanitize_title( $image_meta['title'] ) ) ) {
			$title = $image_meta['title'];
		}

		if ( trim( $image_meta['caption'] ) ) {
			$content = $image_meta['caption'];
		}
	}

	if ( isset( $desc ) ) {
		$title = $desc;
	}

	// Construct the attachment array.
	$attachment = array_merge(
		array(
			'post_mime_type' => $type,
			'guid'           => $url,
			'post_parent'    => $post_id,
			'post_title'     => $title,
			'post_content'   => $content,
		),
		$post_data
	);

	// This should never be set as it would then overwrite an existing attachment.
	unset( $attachment['ID'] );

	// Save the attachment metadata.
	$attachment_id = wp_insert_attachment( $attachment, $file, $post_id, true );

	if ( ! is_wp_error( $attachment_id ) ) {
		wp_update_attachment_metadata( $attachment_id, wp_generate_attachment_metadata( $attachment_id, $file ) );
	}

	return $attachment_id;
}

Changelog

Version Description
5.3.0 The $post_id parameter was made optional.
2.6.0 Introduced.

© 2003–2019 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/functions/media_handle_sideload