Imagegif---&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; Output graphics to refer or files
Syntax: int imagegif (int im [, string filename])
Description:
Imagegif () The graphics IM is based on file name filename, and parameter IM is returned by imagecreate ().
The format of the graphic will be gif87a unless you use Imagecolortransparent () to make the graphic transparent, in which case the graphic will be formatted as gif89a.
The parameter filename is not required, and if this argument is not given, the header () is used to send a image/gif content-type to output the graphic directly. You can create a PHP program that lets it output GIF graphics directly.
Note: The GD library version after 1.6 has been removed from all the provided GIF, so if you are using the version after 1.6, you cannot use this function
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