is_gd_image()
最后更新于:2021-11-27 08:46:21
is_gd_image( resource|GdImage|false$image)Determines whether the value is an acceptable type for GD image functions.
参数
- $image
-
(resource|GdImage|false) (Required) A value to check the type for.
响应
(bool) True if $image is either a GD image resource or GdImage instance, false otherwise.
源文件
文件: gc-includes/media.php
function is_gd_image( $image ) {
if ( is_resource( $image ) && 'gd' === get_resource_type( $image )
|| is_object( $image ) && $image instanceof GdImage
) {
return true;
}
return false;
}