一个功能完整的PHP文件操作类

使用方法:    
只读:$ifile = new iFile('test.txt','r');    
读写:$ifile = new iFile('test.txt','w');    
快读:$ifile = new iFile('test.txt','dr');    
快写:$ifile = new iFile('test.txt','w','测试一下咯');    
读取文件内容:$ifile->getFileData();    
显示读取/快读数据:echo $ifile->Data;    
写入文件内容:$ifile->WriteFile('测试一下咯',3);    
关闭文件句柄:$ifile->ColseFile();      
注意:写入/快写后自动关闭文件句柄.

<?
class iFile {

    private $Fp;
    private $Pipe; //(fopen,popen)(f,p)
    private $File;
    private $OpenMode; //(r,r+,w,w+,a,a+,b)
    private $Data;

    function iFile($File,$Mode = 'r',$Data4Write='',$Pipe = 'f'){
        $this -> File = $File;
        $this -> Pipe = $Pipe;
        if($Mode == 'dr'){
            $this -> OpenMode = 'r';
            $this -> OpenFile();
            $this -> getFileData();
        }else{
            $this -> OpenMode = $Mode;
            $this -> OpenFile();
        }
        if($this->OpenMode=='w'&$Data4Write!=''){
            $this -> WriteFile($Data4Write,$Mode = 3);
        }
    }

    function OpenFile(){
        if ($this -> OpenMode == 'r'||$this -> OpenMode == 'r+'){
            if($this->CheckFile()){
                if ($this -> Pipe == 'f') {
                    $this->Fp = fopen($this -> File, $this -> OpenMode);
                } elseif ($Pipe == 'p') {
                    $this->Fp = popen($this -> File, $this -> OpenMode);
                }else{
                    Die("请检查文件打开参数3,f:fopen()");
                }
            } else {
                Die("文件访问错误,请检查文件是否存在!");
            }
        } else {
            if ($this -> Pipe == 'f') {
                $this->Fp = fopen($this -> File, $this -> OpenMode);
            } elseif ($Pipe == 'p') {
                $this->Fp = popen($this -> File, $this -> OpenMode);
            } else {
                Die("请检查文件打开参数3,f:fopen()");
            }
        }
    }


    function CloseFile(){
        if ($this->Pipe == 'f'){
            @fclose($this->Fp);
        } else {
            @pclose($this->Fp);
        }
    }

    function getFileData(){
        @flock($this->Fp, 1);
        $Content = fread($this->Fp, filesize($this->File));
        $this->Data = $Content;
    }


    function CheckFile(){
        if (file_exists($this -> File)) { return true; } else { return false; }
    }

    function WriteFile($Data4Write,$Mode = 3){
        @flock($this->Fp,$Mode);
        fwrite($this->Fp,$Data4Write);
        $this->CloseFile();
        return true;
    }
}
?>