PHP zip压缩包

PHP中的ZipArchive方法用于添加文件、新目录，并能够在PHP中读取zip。 ZipArchive 是一个类而不是一个方法； ziparchive 包含多种方法；通过使用它，我们可以在 PHP 中对 zip 执行各种操作。 ZipArchive 方法可以执行多种操作，包括添加新文件、添加新目录、关闭存档、提取 ziparchive 内容、在 PHP 中打开 ziparchive。在接下来的部分中，我们将详细了解如何在 PHP 中使用 ziparchive 方法。

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语法

现在我们将讨论 PHP 中 ziparchive 的多种语法。正如我告诉过你的，PHP 中没有 ziparchive 这样的方法；这是一个类，其中包含多个 ziparchive 方法来访问 zip 并读取 zip。让我们看一些语法，以便更好地理解该方法，如下所示；

1.要打开 ziparchive：以下是语法

ziparchive->open('your_file_name');

如您所见，我们只需传递要打开的文件名即可。此外，可以使用 ziparchive 实例调用这些方法。

2.关闭文件：以下是语法

ziparchive->close();

如您所见，我们只需调用 ziparchive 实例上的 close 方法即可关闭 PHP 中的任何文件。

ziparchive 方法在 PHP 中如何工作？

众所周知，我们知道PHP中使用ziparchive方法来读取zip，但是ziparchive不是一个类，不是一个方法，而是包含了几个可以用来对ziparchive进行操作的方法。因此，为了处理 ziparchive，我们在 PHP 中使用 ziparchive 类。要使用任何方法，我们必须创建 ziparchive 类的实例，但通过使用它，我们可以轻松调用任何方法。我们可以使用 ziparchive 实例执行任何操作，例如打开文件。关闭文件、创建新文件、创建新目录、读取 ziparchive 内容等等。

让我们详细讨论每种方法，以便在 PHP 中使用它们，如下所示；

1. statIndex: This method is used to get the entry of the file defined by using the index.
2. setCompressionIndex: This method is used to define the comparison method.
3. renameName: This method is used to rename the file.
4. open: This method is used to open a zip file in PHP.
5. setCommentName: This method is used to comment.
6. unchangeAll: This method is used to revert all the changes that have been performed to the zip archive.
7. setPassword: This method is issued to set the password for the zip archive.
8. close: This method is used to close the zip archive but is currently being used.
9. addEmptyDir: This method is used to add a new empty directory to the zip archive.
10. addFromString: This method is used to a file to the zip archive.
11. count: This method is used to count the number of files present in the archive.
12. deleteName: This method is used to delete an entry from the zip archive based on the name.
13. addFile: This method is issued to add a file in the zip archive. But we have to specify the path as well.
14. statName: This method is used to get the details of the entry based on the name.
15. replaceFile: This method is used to replace the file in the zip archive based on the path.
16. locateName: This method is used to get the index of the entry in the zip archive.
17. getNameIndex: This method is used to get the name of the entry from the zip archive based on the index.
18. getCommentName: This method is used to get the comment of the entry based on the name.
19. getFromIndex: This method is used to get the contents of the entry by sing its index in a zip archive.
20. extractTo: This method is used to get or extract the contents of the zip archive in PHP.
21. deleteIndex: This method is used to delete the entry from the zip archive by using the index.
22. setEncryptionIndex: This method is used to set the encryption for the entry in the zip archive using its index.
23. setArchiveComment: This method is used to set comments for the zip archive in PHP.
24. setExternalAttributesName: This method is used to set the external attribute of the entry based on its name.
25. setEncryptionName: This method is used to set the encryption of the entry of the zip archive based on the name.

To use this all this method, we need to have a ziparchive instance created in our program. After that, only we can call this method to perform any operations on the zip archive in PHP. Let’s see how to create a ziparchive instance in PHP see below;

Example:

$myzip = new ZipArchive();

This is s sample for beginners to use ziparchive in php; we will see some examples in the next section to better understand the ziparchive method in PHP.

Example of PHP ziparchive

In this example, we create one file inside the zip archive; after this, we are closing this file. A sample program for beginners to understand this better.

Code:

<?php
echo 'demo for ziparchive method in PHP !!!';
$zip = new ZipArchive;
echo 'opening zip file !!';
if ($zip->open('https://cdn.educba.com/path/mydem.zip') === TRUE) {
//adding file
$zip->addFile('https://cdn.educba.com/path/myzip/demofile.txt', 'mynewdemofile.txt');
//closing file
$zip->close();
echo 'file added successfully !!';
echo 'file close successfully !!'
} else {
echo 'error occured while cerating the file.'
echo 'process failed !!'
echo 'failed while creation !!';
}
?>

Output:

Conclusion

By using ziparchive methods, we can perform many operations on the ziparchive. This is the class with so many different methods available. With the help of this, we can create a file, directory, delete, open, and close our ziparchive in PHP.

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