is_gd_image()WP 5.6.0

Determines whether the value is an acceptable type for GD image functions.

In PHP 8.0, the GD extension uses GdImage objects for its data structures. This function checks if the passed value is either a GdImage object instance or a resource of type gd. Any other type will return false.

Хуков нет.


true|false. True if $image is either a GD image resource or a GdImage instance, false otherwise.


is_gd_image( $image );
$image(resource|GdImage|false) (обязательный)
A value to check the type for.

Список изменений

С версии 5.6.0 Введена.

Код is_gd_image() WP 6.6

function is_gd_image( $image ) {
	if ( $image instanceof GdImage
		|| is_resource( $image ) && 'gd' === get_resource_type( $image )
	) {
		return true;

	return false;