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一个更改hosts的PHP脚本

  2. define('HOST_FILE', 'C:\Windows\System32\drivers\etc\hosts');
  4. $hm = new HostManage(HOST_FILE);
  6. $env = $argv[1];
  7. if (empty($env)) {
  8. $hm->delAllGroup();
  9. } else {
  10. $hm->addGroup($env);
  11. }
  13. class HostManage {
  15. // hosts 文件路径
  16. protected $file;
  17. // hosts 记录数组
  18. protected $hosts = array();
  19. // 配置文件路径，默认为 __FILE__ . '.ini';
  20. protected $configFile;
  21. // 从 ini 配置文件读取出来的配置数组
  22. protected $config = array();
  23. // 配置文件里面需要配置的域名
  24. protected $domain = array();
  25. // 配置文件获取的 ip 数据
  26. protected $ip = array();
  28. public function __construct($file, $config_file = null) {
  29. $this->file = $file;
  30. if ($config_file) {
  31. $this->configFile = $config_file;
  32. } else {
  33. $this->configFile = __FILE__ . '.ini';
  34. }
  35. $this->initHosts()
  36. ->initCfg();
  37. }
  39. public function __destruct() {
  40. $this->write();
  41. }
  43. public function initHosts() {
  44. $lines = file($this->file);
  45. foreach ($lines as $line) {
  46. $line = trim($line);
  47. if (empty($line) || $line[0] == '#') {
  48. continue;
  49. }
  50. $item = preg_split('/\s+/', $line);
  51. $this->hosts[$item[1]] = $item[0];
  52. }
  53. return $this;
  54. }
  56. public function initCfg() {
  57. if (! file_exists($this->configFile)) {
  58. $this->config = array();
  59. } else {
  60. $this->config = (parse_ini_file($this->configFile, true));
  61. }
  62. $this->domain = array_keys($this->config['domain']);
  63. $this->ip = $this->config['ip'];
  64. return $this;
  65. }
  67. /**
  68. * 删除配置文件里域的 hosts
  69. */
  70. public function delAllGroup() {
  71. foreach ($this->domain as $domain) {
  72. $this->delRecord($domain);
  73. }
  74. }
  76. /**
  77. * 将域配置为指定 ip
  78. * @param type $env
  79. * @return \HostManage
  80. */
  81. public function addGroup($env) {
  82. if (! isset($this->ip[$env])) {
  83. return $this;
  84. }
  85. foreach ($this->domain as $domain) {
  86. $this->addRecord($domain, $this->ip[$env]);
  87. }
  88. return $this;
  89. }
  91. /**
  92. * 添加一条 host 记录
  93. * @param type $ip
  94. * @param type $domain
  95. */
  96. function addRecord($domain, $ip) {
  97. $this->hosts[$domain] = $ip;
  98. return $this;
  99. }
  101. /**
  102. * 删除一条 host 记录
  103. * @param type $domain
  104. */
  105. function delRecord($domain) {
  106. unset($this->hosts[$domain]);
  107. return $this;
  108. }
  110. /**
  111. * 写入 host 文件
  112. */
  113. public function write() {
  114. $str = '';
  115. foreach ($this->hosts as $domain => $ip) {
  116. $str .= $ip . "\t" . $domain . PHP_EOL;
  117. }
  118. file_put_contents($this->file, $str);
  119. return $this;
  120. }
  122. }

使用方法：
  1. php hosts.php local # 域名将指向本机 127.0.0.1
  2. php hosts.php dev # 域名将指向开发机 192.168.1.100
  3. php hosts.php # 删除域名的 hosts 配置

hosts, PHP