The example of this article describes the PHP output image imagegif, imagejpeg and imagepng function usage. Share to everyone for your reference, specific as follows:
The Imagegif (), imagejpeg (), Imagepng (), and imagewbmp () functions allow
PHP output image imagegif, imagejpeg and imagepng function Usage Analysis, imagegifimagepng
This article describes how to use the imagegif, imagejpeg, and imagepng functions of PHP output images. We will share this with you for your reference. The
The Imagegif (), imagejpeg (), Imagepng (), and imagewbmp () functions allow images to be exported to a browser or file in GIF, JPEG, PNG, and WBMP formats, respectively.PHP Output ImagePHP allows images to be exported in different formats:
Note: If you want to use PHP GD processing we need to open the GD library
GD Library support for PHP under Windows
Find php.ini, open content, find:
; Extension=php_gd2.dll
Put the front semicolon ";" Remove, then save, if there is no semicolon,
PHP Function Index 967 functions
A total of 967 functions
Abs: Get absolute value.
Acos: Gets the inverse cosine value.
Ada_afetch: Gets the return column of the database.
Ada_autocommit: Switch automatic change function.
Ada_close: Close Adabas D
5. Other Miscellaneous
5.1 Generating Images
PHP can manipulate image processing. If you have installed the GD library, you can even use PHP to generate images.
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Header ("Content-type:image/gif");
$string =implode ($ARGV, "");
$im =
In the PHP Web development process, if you set up a site involving a large number of image processing, must involve picture upload, zoom, and how to keep the picture is not distorted, is a lot of beginners PHP Web developers more headaches, today,
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