Imagecreatefromstring () function usage solution

Description in the imagecreatefromstring () function usage manual: imagecreatefromstring-create an image from the image stream in the string. I wrote the following: Usage & qu imagecreatefromstring () function usage:
Description in the manual: imagecreatefromstring-create an image from the image stream in the string

I wrote this:

PHP code

  Imagecreatefromstring ("http://i3.sinaimg.cn/home/deco/2009/0330/logo_home.gif ");

Error:
Imagecreatefromstring () [function. imagecreatefromstring]: Data is not in a recognized format

How should I write the parameters of this function?

Thank you!

------ Solution --------------------
The parameter is an image string.

See Manual: http://php.net/manual/en/function.imagecreatefromstring.php
------ Solution --------------------
Imagecreate-create a palette-based image

Imagecreatetruecolor-create a true color image

Imagecreatefromstring-create an image resource from the image stream in the string.

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