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This article mainly introduces how to install pear extension and decompression techniques in PHP. Interested friends can refer to it. I hope it will be helpful to everyone.
1. Use PHP’s own compression and archiving extension (phar)
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$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
Under Linux/usr/local/php/bin/pear install Archive_Tarwamp 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 in the php directory (any directory is acceptable) and execute php go-pear .phar command, press enter according to the prompt①、Install
#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";
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