PHP and AJAX Suggest

PHP and AJAX Suggest

这个suggest是仿google的效果了,google总是走在世界的技术的前面啊,下面我们也来看看实例吧.

先看看html文件.

<form> 
First Name:
<input type="text" id="txt1"
onkeyup="showHint(this.value)">
</form>

<p>Suggestions: <span id="txtHint"></span></p>

下面用js文件的ajax文件来处理数据.

var xmlHttp;

function showHint(str)
{
if (str.length==0)
  { 
  document.getElementById("txtHint").innerHTML="";
  return;
  }
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
  {
  alert ("Browser does not support HTTP Request");
  return;
  } 
var url="gethint.php";
url=url+"?q="+str;
url=url+"&sid="+Math.random();
xmlHttp.onreadystatechange=stateChanged;
xmlHttp.open("GET",url,true);
xmlHttp.send(null);
} 

function stateChanged() 
{ 
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
 { 
 document.getElementById("txtHint").innerHTML=xmlHttp.responseText;
 } 
}
function GetXmlHttpObject()
{
var xmlHttp=null;
try
 {
 // Firefox, Opera 8.0+, Safari
 xmlHttp=new XMLHttpRequest();
 }
catch (e)
 {
 // Internet Explorer
 try
  {
  xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
  }
 catch (e)
  {
  xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
 }
return xmlHttp;
}
 
这个文件只是返回php处理的数据,而我们的php文件如下.
<?php
// Fill up array with names
$a[]="Anna";
$a[]="Brittany";
$a[]="Cinderella";
$a[]="Diana";
$a[]="Eva";
$a[]="Fiona";
$a[]="Gunda";
$a[]="Hege";
$a[]="Inga";
$a[]="Johanna";
$a[]="Kitty";
$a[]="Linda";
$a[]="Nina";
$a[]="Ophelia";
$a[]="Petunia";
$a[]="Amanda";
$a[]="Raquel";
$a[]="Cindy";
$a[]="Doris";
$a[]="Eve";
$a[]="Evita";
$a[]="Sunniva";
$a[]="Tove";
$a[]="Unni";
$a[]="Violet";
$a[]="Liza";
$a[]="Elizabeth";
$a[]="Ellen";
$a[]="Wenche";
$a[]="Vicky";
//get the q parameter from URL
$q=$_GET["q"];
//lookup all hints from array if length of q>0
if (strlen($q) > 0)
{
$hint="";
for($i=0; $i<count($a); $i++)
  {
  if (strtolower($q)==strtolower(substr($a[$i],0,strlen($q))))
    {
    if ($hint=="")
      {
      $hint=$a[$i];
      }
    else
      {
      $hint=$hint." , ".$a[$i];
      }
    }
  }
}

//Set output to "no suggestion" if no hint were found
//or to the correct values
if ($hint == "")
{
$response="no suggestion";
}
else
{
$response=$hint;
}

//output the response
echo $response;
?>
好了我们的确suggest效果就完成了.

class GetMacAddr{   
  
       var $return_array = array(); // 返回带有MAC地址的字串数组   
       var $mac_addr;   
  
       function GetMacAddr($os_type){   
            switch ( strtolower($os_type) ){   
                     case "linux":   
                               $this->forLinux();   
                               break;   
                     case "solaris":   
                               break;   
                     case "unix":   
                               break;   
                     case "aix":   
                               break;   
                     default:   
                               $this->forWindows();   
                               break;   
  
            }   
  
              
            $temp_array = array();   
            foreach ( $this->return_array as $value ){   
  
                      if (   
preg_match("/[0-9a-f][0-9a-f][:-]"."[0-9a-f][0-9a-f][:-]"."[0-9a-f][0-9a-f][:-]"."[0-9a-f][0-9a-f][:-]"."[0-9a-f][0-9a-f][:-]"."[0-9a-f][0-9a-f]/i",$value,   
$temp_array ) ){   
                               $this->mac_addr = $temp_array[0];   
                               break;   
                     }   
  
            }   
            unset($temp_array);   
            return $this->mac_addr;   
       }   
  
  
       function forWindows(){   
            @exec("ipconfig /all", $this->return_array);   
            if ( $this->return_array )   
                     return $this->return_array;   
            else{   
                     $ipconfig = $_SERVER["WINDIR"]."system32ipconfig.exe";   
                     if ( is_file($ipconfig) )   
                        @exec($ipconfig." /all", $this->return_array);   
                     else  
                        @exec($_SERVER["WINDIR"]."systemipconfig.exe /all", $this->return_array);   
                     return $this->return_array;   
            }   
       }   
  
  
  
       function forLinux(){   
            @exec("ifconfig -a", $this->return_array);   
            return $this->return_array;   
       }   
  
}   
//方法使用   
//$mac = new GetMacAddr(PHP_OS);   
//echo $mac->mac_addr;   

PHP FTP 函数使用教程

class yl_upload_class
{
#*********************************************************
#创建目录函数
#*********************************************************
function createfolder($yl_path)
{
   if (!file_exists($yl_path))
   {
    $this -> createfolder(dirname($yl_path));
    @mkdir($yl_path, 0777);
   }
   return $this -> createfolder;
}
#*********************************************************
#获取文件名称,大小,类型,临时文件名
#*********************************************************
function yl_getfilename($yl_type)
{
   global $yl_filedata,$yl_directroy,$yl_settingsnew;
   global $yl_maxsize,$yl_sizeformat,$yl_arrext,$yl_ext;
   return $_FILES[$yl_filedata][$yl_type];
}
#*********************************************************
#获取文件大小
#*********************************************************
function yl_getfilesize()
{
   global $yl_filedata,$yl_directroy,$yl_settingsnew;
   global $yl_maxsize,$yl_sizeformat,$yl_arrext,$yl_ext;
   if($this -> yl_getfilename('size') == 0){
      $this -> alert("请选择上传文件!");
      exit;
   }
   if($this -> yl_getfilename('size') > $yl_maxsize){
         $yl_maxsizek=$yl_maxsize/1024;
      $this -> alert("上传文件超出限制范围$yl_maxsizek.K!");
      exit;
   }
   switch (strtolower($yl_sizeformat)){
   case 'b':
   return $this -> yl_getfilename('size') . ' B';
   break;
   case 'k':
   return ($this -> yl_getfilename('size')/1024) . ' K';
   break;
   case 'm':
   return ($this -> yl_getfilename('size'))/(1024*1024) . ' M';
   }
}
#*********************************************************
#获得文件扩展名
#*********************************************************
function yl_getfiletype()
{
   global $yl_filedata,$yl_directroy,$yl_settingsnew;
   global $yl_maxsize,$yl_sizeformat,$yl_arrext,$yl_ext;
     $yl_temp_arr = explode(".", $this -> yl_getfilename('name'));
     $yl_file_ext = array_pop($yl_temp_arr);
      $yl_file_ext = trim($yl_file_ext);
     $yl_file_ext = strtolower($yl_file_ext);
     //检查扩展名
     if (in_array($yl_file_ext, $yl_arrext) === false) {
        $this -> alert("上传文件类型被限制!");
        exit;
     }
     return $yl_file_ext;
}
#*********************************************************
#上传
#*********************************************************
function yl_uploadfile()
{
   global $yl_filedata,$yl_directroy,$file_urldirectroy,$yl_settingsnew;
   global $yl_maxsize,$yl_sizeformat,$yl_arrext,$yl_ext;
   $yl_file_nameold = $this -> yl_getfilename('name');//原文件名
   $yl_file_namenews = date('Ymd').'_'.md5(date('YmdHis'));//重命名
   if($yl_ext == 0){
      $yl_file_names = $yl_file_namenews.'.'.$this -> yl_getfiletype();//改名
   }elseif ($yl_ext == 1){
      $yl_file_names = $yl_file_namenews.'.jpg';//统一改名为jpg
      }
   $yl_tmp_name = $this -> yl_getfilename('tmp_name');//服务器上临时文件名
   $yl_file_size = $this -> yl_getfilesize();//获取文件大小
   $yl_file_type = $this -> yl_getfiletype();//获取文件类型
   $yl_file_path = $yl_directroy.'/'.$yl_settingsnew;//建立一个目录
     //检查目录是否存在,不存在则创建
     if(@is_dir($yl_file_path) === false) {
      $this -> createfolder(''.$yl_file_path.'');//创建目录
     }
     //检查是否已上传
   if(@is_uploaded_file($yl_tmp_name) === false) {
        $this -> alert("文件已上传!");
        exit;
   }
     //检查目录写权限
     if (@is_writable($yl_file_path) === false) {
          $this -> alert("上传目录没有写权限!");
          exit;
     }
   $yl_doupload = @copy($yl_tmp_name, ''.$yl_file_path.'/'.$yl_file_names.'');
   if($yl_doUpload === false)
   {
    $this -> alert("上传失败!");
   }else{
    echo '上传成功';
    echo '<br>';
    echo '文件目录：'.$yl_file_path.'';
    echo '<br>';
    echo '原文件名：'.$yl_file_nameold.'';
    echo '<br>';
    echo '新文件名：'.$yl_file_names.'';
    echo '<br>';
    echo '文件大小：'.$yl_file_size.'';
    echo '<br>';
    echo '文件类型：'.$yl_file_type.'';
   }
    return;
}
#*********************************************************
#*删除文件
#*********************************************************
function delfile()
{
   global $yl_filedata,$yl_directroy,$yl_settingsnew;
   global $yl_maxsize,$yl_sizeformat,$yl_arrext,$yl_ext;
   $yl__dir = dirname(trim($yl_directroy));
   if( $this->_isDel( $yl__dir ) )
   {
      return @unlink( $yl_directroy ) ? true : false;
   }else{
   return false;
   }
}
#*********************************************************
#删除目录 目录下如果有文件不能删除
#*********************************************************
function deldir( )
{
   global $yl_filedata,$yl_directroy,$yl_settingsnew;
   global $yl_maxsize,$yl_sizeformat,$yl_arrext,$yl_ext;
   if( $this->_isdel($yl_directroy) && is_dir( $yl_directroy ) )
   {
      return @rmdir( $yl_directroy ) ? true : false;
   }else{
      return false;
   }
}
#*********************************************************
#提示
#*********************************************************
function alert($yl_msg)
{
    echo '<html>';
    echo '<head>';
    echo '<title>error</title>';
    echo '<meta http-equiv="content-type" c>';
    echo '</head>';
    echo '<body>';
    echo '<script type="text/javascript">alert("'.$yl_msg.'");;</script>';
    echo '</body>';
    echo '</html>';
    exit;
}
}
?>