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Detailed explanation of php's zip and unzip classes

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Detailed explanation of php's zip and unzip classes Introducing a detailed explanation of PHP's zip and unzip classes. 1.Open a ZIP package for reading, writing or modifying; 2.Set the decompression password of the zip package; 3Close the activated zip package (opened or newly created) , and save the changes; 4.Extract the entire archive or a given file from the zip package to the specified directory or file (unzip); 5.Add a File; 6.Add the contents of the file to the zip package (naturally, we need to specify which file in the zip package the content should be added to); 7.In the zip package, through the file index and file name, delete the specified file; 8.Get error information, system information or zip information; 9.Undo all changes to the zip package; 10.Class constants used by ZipArchive. There are three types of constants: Flags (prefixed by FL_), errors (prefixed by ER_) and mode (no prefix).

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