小编Sax*_*tor的帖子

我试图从HTML中删除JavaScript.

我无法使用正则表达式来使用PHP; 它给了我一个空数组.为什么？

<?php
$var = '
<script type="text/javascript"> 
function selectCode(a) 
{ 
   var e = a.parentNode.parentNode.getElementsByTagName(PRE)[0]; 
   if (window.getSelection) 
   { 
      var s = window.getSelection(); 
       if (s.setBaseAndExtent) 
      { 
         s.setBaseAndExtent(e, 0, e, e.innerText.length - 1); 
      } 
      else 
      { 
         var r = document.createRange(); 
         r.selectNodeContents(e); 
         s.removeAllRanges(); 
         s.addRange(r); 
      } 
   } 
   else if (document.getSelection) 
   { 
      var s = document.getSelection(); 
      var r = document.createRange(); 
      r.selectNodeContents(e); 
      s.removeAllRanges(); 
      s.addRange(r); 
   } 
   else if (document.selection) 
   { 
      var r = document.body.createTextRange(); 
      r.moveToElementText(e); 
      r.select(); 
   } 
} 
</script>
';

   function remove_javascript($java){
   echo preg_replace('/<script\b[^>]*>(.*?)<\/script>/i', "", $java); …

我一直试图用PHP限制带宽.我无法通过PHP限制下载速率.

你能帮忙吗？

function total_filesize($url) {
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, "$url");
    curl_setopt($ch, CURLINFO_SPEED_DOWNLOAD,12); //ITS NOT WORKING! 
    curl_setopt($ch, CURLOPT_USERAGENT,
            "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.11) ".
            "Gecko/20071127 Firefox/2.0.0.11");
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
    curl_setopt($ch, CURLOPT_HEADER, false);
    curl_setopt($ch, CURLOPT_NOBODY, true);


    $chStore = curl_exec($ch);
    $chError = curl_error($ch);
    $chInfo = curl_getinfo($ch);
    curl_close($ch);
    return $size = $chInfo['download_content_length'];
}

function __define_url($url) {
    $basename = basename($url);
    Define('filename',$basename);
    $define_file_size = total_filesize($url);
    Define('filesizes',$define_file_size);
}

function _download_file($url_file) { 
    __define_url($url_file);

    // $range = "50000-60000";
    $filesize = filesizes;
    $file …