How use CURLOPT_WRITEFUNCTION when download a file by CURL

Question

My Class for download file direct from a link:

MyClass{

          function download($link){
                ......
                $ch = curl_init($link);
          


        

Answer 1

Why do you use curl to download a file? Is there a special reason? You can simply use fopen and fread

I have written a small class for it.

source = $source;
        $this->dest   = $dest;
        $this->buffer = $buffer; 
        $this->overwrite = $overwrite;
    }
    public function download(){
        if($this->overwrite||!file_exists($this->dest)){
            if(!is_dir(dirname($this->dest))){mkdir(dirname($this->dest),0755,true);}
            if($this->source==""){
                $resource = false;
                Utils_Logging_Logger::getLogger()->log("source must not be empty.",Utils_Logging_Logger::TYPE_ERROR);
            }
            else{ $resource = fopen($this->source,"rb"); }
            if($this->source==""){
                $dest = false;
                Utils_Logging_Logger::getLogger()->log("destination must not be empty.",Utils_Logging_Logger::TYPE_ERROR);
            }
            else{ $dest     = fopen($this->dest,"wb"); }
            if($resource!==false&&$dest!==false){
                while(!feof($resource)){
                    $read = fread($resource,$this->buffer);
                    fwrite($dest,$read,$this->buffer);
                }
                chmod($this->dest,0644);
                fclose($dest); fclose($resource);
                return true;
            }else{
                 return false;   
            }
        }else{
            return false;
        }
    }
}