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php method to implement image format conversion: first create a new php file and put two images in the test directory; then use the pathinfo function to determine the format of the image; finally use the function imagejpeg to convert the image source into jpg format Picture and save it.
The operating environment of this tutorial: Windows 7 system, PHP version 5.6. This method is suitable for all brands of computers.
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Use php to convert png and gif format images into jpg format images
Method
Create a new php file and name it test.php.
Use the header to set the encoding format of the current file utf8 to avoid garbled characters when outputting text.
Put two pictures in the test directory, one is the png format picture 1.png, and the other is the gif format picture 1.gif, as Converted image source.
Use the pathinfo() function to determine the format of the image, which is used to adopt different conversion methods for images in different formats. For example, first convert 1.gif into a jpg format image, the code is as follows:
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