本文实例讲述了PHP实现更改hosts文件的方法。分享给大家供大家参考,具体如下:
有这样一个需求,我有多个网址希望在不同的时候对应不同的 ip,如果一个个配 hosts,这工作显得有些繁琐。写了如下脚本来批量更改。
<?phpdefine('HOST_FILE', 'C:/Windows/System32/drivers/etc/hosts');$hm = new HostManage(HOST_FILE);$env = $argv[1];if (empty($env)) { $hm->delAllGroup();} else { $hm->addGroup($env);}class HostManage { // hosts 文件路径 protected $file; // hosts 记录数组 protected $hosts = array(); // 配置文件路径,默认为 __FILE__ . '.ini'; protected $configFile; // 从 ini 配置文件读取出来的配置数组 protected $config = array(); // 配置文件里面需要配置的域名 protected $domain = array(); // 配置文件获取的 ip 数据 protected $ip = array(); public function __construct($file, $config_file = null) { $this->file = $file; if ($config_file) { $this->configFile = $config_file; } else { $this->configFile = __FILE__ . '.ini'; } $this->initHosts() ->initCfg(); } public function __destruct() { $this->write(); } public function initHosts() { $lines = file($this->file); foreach ($lines as $line) { $line = trim($line); if (empty($line) || $line[0] == '#') { continue; } $item = preg_split('//s+/', $line); $this->hosts[$item[1]] = $item[0]; } return $this; } public function initCfg() { if (! file_exists($this->configFile)) { $this->config = array(); } else { $this->config = (parse_ini_file($this->configFile, true)); } $this->domain = array_keys($this->config['domain']); $this->ip = $this->config['ip']; return $this; } /** * 删除配置文件里域的 hosts */ public function delAllGroup() { foreach ($this->domain as $domain) { $this->delRecord($domain); } } /** * 将域配置为指定 ip * @param type $env * @return /HostManage */ public function addGroup($env) { if (! isset($this->ip[$env])) { return $this; } foreach ($this->domain as $domain) { $this->addRecord($domain, $this->ip[$env]); } return $this; } /** * 添加一条 host 记录 * @param type $ip * @param type $domain */ function addRecord($domain, $ip) { $this->hosts[$domain] = $ip; return $this; } /** * 删除一条 host 记录 * @param type $domain */ function delRecord($domain) { unset($this->hosts[$domain]); return $this; } /** * 写入 host 文件 */ public function write() { $str = ''; foreach ($this->hosts as $domain => $ip) { $str .= $ip . "/t" . $domain . PHP_EOL; } file_put_contents($this->file, $str); return $this; }}
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