本文实例讲述了php采集中国代理服务器网的方法。分享给大家供大家参考。具体如下：
<?php/** * 采集中国代理服务器网 最新列表 */class proxy{ /* 需采集列表 */ public $list; /* 代理列表 保存路径 */ public $save_path = "proxy.txt"; /* 获取采集列表 */ function get_list($page) { $url = "http://www.cnproxy.com/proxy(*).html"; // 处理列表 $this->list = preg_replace("/(*)/", $page, $url); return $this->list; } /* 采集代理内容 */ function get($page) { $this->get_list($page); $file = stripslashes(file_get_contents($this->list)); $zz = "/<tr><td>([0-9.]+)<SCRIPT type=text/javascript>document.write(":"([+a-z]+))</SCRIPT></td><td>[w]+</td><td>[w,]+</td>/is"; preg_match_all($zz, $file, $temp); unset($temp[0]); $th = array("z", "m", "k", "l", "d", "x", "i", "w", "q", "b"); $th2 = array(3, 4, 2, 9, 0, 5, 7, 6, 8, 1); foreach ($temp[2] as $k=>$v) { $v = preg_replace("/[+]+/", "", $v); $s = str_replace($th, $th2, $v); $re .= $temp[1][$k] . ":" . $s . ""; } $this->save($re); return true; } /* 保存 */ function save($re) { return file_put_contents($this->save_path, $re, FILE_APPEND); } /* 读取 */ function read() { return file_get_contents($this->save_path); }}// 初始化采集类$p = new proxy;$start = 1;$end = 10;// 控制if($_GET["a"] == "start") { echo "正在发送采集请求"; echo "<meta http-equiv="Refresh" content="3;URL=?p=1">";} elseif(isset($_GET["p"])) { $i = $_GET["p"]++; if($i >= $end+1) { exit("<meta http-equiv="Refresh" content="0;URL=?a=end">"); } else { echo "正在请求列表 ". $i ." > ". $end; if($p->get($i)) { echo "<meta http-equiv="Refresh" content="3;URL=?p=".$_GET["p"]++."">"; } }} elseif($_GET["a"] == "end") { echo "采集完毕";} else { echo "<form> <input type="hidden" name="a" value="start" /> <input type="submit" value="开始采集" /> </form>";}?>希望本文所述对大家的php程序设计有所帮助。
