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
Strange problems with Imagepng
The code below, it is strange to change imagepng ($im) to Imagepng ($im, "kk.png") can get the picture but the direct output to the browser is not displayed, has been a red fork, this code on another machine can run
Two examples of php circle drawing: Use of php plot functions imagearc () and ImagePng ()
Header ("Content-type: image/png ");
$ Im = ImageCreate (150,150 );
$ Gray = ImageColorAllocate ($ im, 230,230
Images & quot;) can be obtained, but the code cannot be displayed in the browser. it is always a red cross. this code can run normally on another machine. Is it my php configuration problem? & Lt ;? Strange question about header (& quot;
Strange problems with Imagepng
The code below, it is strange to change imagepng ($im) to Imagepng ($im, "kk.png") can get the picture but the direct output to the browser is not displayed, has been a red fork, this code on another machine can run
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:
About PHP cannot use imagepng function, cause nginx 502 problemSome of the wrong understandings:1. libpng version low, this is not, and the version is not relatedFirst of all to check yourself, phpinfo () there is a GD library support, if you have
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