PHP function imagejpeg,imagepng,imagegif parameter details content type image JPEG data image JPEG data image jpeg Base6

These three functions have 3 parameters, the first parameter is the image stream, the second parameter is the saved file name, and the third parameter is the specified picture quality.

Note that the third parameter is important, and it determines the quality and size of the image you regenerate. Imagejpeg and Imagegif, the range of this parameter is 1-100, the default is 100, the larger the value, the higher the image quality; Imagepng is 1-9,

Default maximum.

The above describes the PHP function imagejpeg,imagepng,imagegif parameters in detail, including the image,jpeg aspects of the content, I hope that the PHP tutorial interested in a friend helpful.

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