wp_load_image() WordPress Function

function wp_load_image( $file ) {
	_deprecated_function( __FUNCTION__, '3.5.0', 'wp_get_image_editor()' );

	if ( is_numeric( $file ) )
		$file = get_attached_file( $file );

	if ( ! is_file( $file ) ) {
		/* translators: %s: File name. */
		return sprintf( __( 'File &#8220;%s&#8221; does not exist?' ), $file );
	}

	if ( ! function_exists('imagecreatefromstring') )
		return __('The GD image library is not installed.');

	// Set artificially high because GD uses uncompressed images in memory.
	wp_raise_memory_limit( 'image' );

	$image = imagecreatefromstring( file_get_contents( $file ) );

	if ( ! is_gd_image( $image ) ) {
		/* translators: %s: File name. */
		return sprintf( __( 'File &#8220;%s&#8221; is not an image.' ), $file );
	}

	return $image;
}
Uses	Description
wp-includes/media.php:is_gd_image()	Determines whether the value is an acceptable type for GD image functions.
wp-includes/functions.php:wp_raise_memory_limit()	Attempts to raise the PHP memory limit for memory intensive processes.
wp-includes/l10n.php:__()	Retrieve the translation of $text.
wp-includes/functions.php:_deprecated_function()	Mark a function as deprecated and inform when it has been used.
wp-includes/post.php:get_attached_file()	Retrieve attached file path based on attachment ID.