PHP painting can be saved to files, but it is only a cross solution in the browser.

PHP drawing can be saved to a file, but it is only a cross-PHP drawing in the browser that can be saved to the file. However, it is only a cross in the browser and must be answered by experts, most of them are BOM headers, which are reliable on the first floor! Most of them are the reasons for BOM. I once met that images are not web pages, but they are always misaligned and related to browsers, forget whether IE or Firefox can automatically correct this error. The PHP drawing can be saved to the file, but it is only a cross in the browser.
PHP drawing can be saved to files, but it is only a cross in the browser, and you need to answer it

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Most of them are BOM headers.
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The first floor is reliable! Most of the reasons are BOM. I have encountered such problems as misplacement of images and webpages.
It is also related to the browser. if you forget whether IE or Firefox can automatically correct this error