How to decompress tar.gz format files with PHP_php tips

The example in this article describes how to decompress tar.gz format files with PHP. Share it with everyone for your reference, the details are as follows:

1. Use PHP’s built-in compression and archiving extension (phar)

$phar = new PharData('song.tar.gz');
//路径 要解压的文件 是否覆盖
$phar->extractTo('c:/tmp', null, true);

2. First, you need to install the pear management tool

Linux

/usr/local/php/bin/pear install Archive_Tar

wamp does not install pear by default, go-pear.php is suitable for older versions, php5.3 needs to download go-pear.phar

Put the downloaded file into the php directory (any directory can be used), execute the php go-pear.phar command, and press enter according to the prompts

①、Installation

#这个类实际安装pear时默认就会安装
pear install archive_tar

②、

/**
原理：tar压缩包前512字节有自己的固定格式，根据这512个字节可以获取压缩包的文件名，大小等信息
在配合 gzopen，gzread 便可以解压gz格式
 */
$tar_object = new Archive_Tar("song.tar.gz");
$tar_object->extract('c:/tmp', true);

3. PHP calls external commands to perform decompression

//必须等命令执行完成，脚本才会推出，popen命令并非异步去执行
error_reporting(E_ALL);
ini_set("display_errors", 1);
$handle = popen("tar -xzvf song.tar.gz 2>&1", 'r');
/*
while(!feof($handle)) {
set_time_limit(3);
  $buffer = fgets($handle);
  echo "$buffer\n";
  ob_flush();
  flush();
}*/
echo "start \n";
pclose($handle);
echo "end \n";

Readers who are interested in more PHP related content can check out the special topics of this site: "Summary of PHP operation zip files and compression techniques", "PHP basic syntax introductory tutorial", "Summary of PHP error and exception handling methods" and "Summary of common PHP functions and techniques"

I hope this article will be helpful to everyone in PHP programming.