PHP采集程序中常用的函数

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Posted on 12月 11th, 2007 由 毛毛虫
  1. <?php
  2. //获得当前的脚本网址
  3. function get_php_url(){
  4.         if(!empty($_SERVER["REQUEST_URI"])){
  5.                 $scriptName = $_SERVER["REQUEST_URI"];
  6.                 $nowurl = $scriptName;
  7.         }else{
  8.                 $scriptName = $_SERVER["PHP_SELF"];
  9.                 if(empty($_SERVER["QUERY_STRING"])) $nowurl = $scriptName;
  10.                 else $nowurl = $scriptName."?".$_SERVER["QUERY_STRING"];
  11.         }
  12.         return $nowurl;
  13. }
  14. //把全角数字转为半角数字
  15. function GetAlabNum($fnum){
  16.         $nums = array("０","１","２","３","４","５","６","７","８","９");
  17.         $fnums = "0123456789";
  18.         for($i=0;$i<=9;$i++) $fnum = str_replace($nums[$i],$fnums[$i],$fnum);
  19.         $fnum = ereg_replace("[^0-9\.]|^0{1,}","",$fnum);
  20.         if($fnum=="") $fnum=0;
  21.         return $fnum;
  22. }

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