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function is not described

_rotate_image_resource() WP 2.9.0

Deprecated in 3.5.0. It is no longer supported and can be removed in future releases. Use WP_Image_Editor::rotate() instead.

Returns an image resource. Internal use only.

  • See: WP_Image_Editor::rotate()

No Hooks.

Return

resource/false. GD image resource, false otherwise.

Usage

_rotate_image_resource( $img, $angle );
$img(resource) (required)
Image resource.
$angle(float/int) (required)
Image rotation angle, in degrees.

Code of rotate image resource: wp-admin/includes/image-edit.php VER 5.1.1

<?php
function _rotate_image_resource( $img, $angle ) {
	_deprecated_function( __FUNCTION__, '3.5.0', 'WP_Image_Editor::rotate()' );
	if ( function_exists( 'imagerotate' ) ) {
		$rotated = imagerotate( $img, $angle, 0 );
		if ( is_resource( $rotated ) ) {
			imagedestroy( $img );
			$img = $rotated;
		}
	}
	return $img;
}