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Graphics function Library: imagejpeg

Source: Internet
Author: User
Keywords imagejpeg php Chinese function manual graphics function library
Tags aliyun file function function library graphics graphics function library html jpeg
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Imagehttp://www.aliyun.com/zixun/aggregation/16701.html ">jpeg

(PHP3 >= 3.0.16, PHP4 >= 4.0rc1)

Imagejpeg---Output graphics to refer or files

Syntax: int imagejpeg (int im [, string filename [, int quality]])

Description:

Imagejpeg () The graphics IM is based on file name filename, and parameter IM is returned by imagecreate ().

The parameter filename is not required, and if this argument is not given, the header () is used to send a JPEG content-type to output the graphic directly. To provide parameter quality, you can use an empty string (') to skip the parameter filename. You can create a PHP program that lets it output JPEG graphics directly.

Note: If PHP is compiled in GD-1.8 or newer versions, the JPEG

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