PHP file download class code, PHP file download processing class
Release: 2016-07-25 08:51:27
Original
1177 people have browsed it
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/* - * Function: File download
- */
- /**
- * Usage: $download = new Download();
- * //Set parameters
- * $download->set_file_dir("c:/");
- * $download->set_file_name("boot.ini") ;
- * $download->set_read_bytes(1024);
- * //File download processing operation
- * $download->deal_with();
- * //Determine whether the file exists
- * if($download->is_file_exist ()){
- *echo "file_exist";
- *}else{
- *echo "file_not_exist";
- *}
- */
- class Download {
- private $file = null;//File handle
- private $file_dir = "";//The directory where the file is located
- private $file_name = "";//File name
- private $file_exist = false;//Indicates whether the file exists, the default is not
- private $read_bytes = 0;//Number of bytes read from the file
- private $mode = "r";//Access type of the file
public function __construct(){
- }
- < ;p>public function __destruct(){
- if(null != $this->file){
- fclose($this->file);
- }
- }
/* *
- * File download processing operations
- */ bbs.it-home.org
- public function deal_with(){
- //Full file path
- $file_path = $this->file_dir . $this->file_name;
-
//Check if the file exists
- if (file_exists($file_path)) {
- $this->file_exist = true;
//Open the file
- $this-> file = fopen($file_path, $this->mode);
// Input file tag
- Header("Content-type: application/octet-stream");
- Header(" Accept-Ranges: bytes");
- Header("Accept-Length: " . filesize($file_path));
- Header("Content-Disposition: attachment; filename=" . $this->file_name); p>
//Output file content
- while(!feof($this->file))
- {
- $out = fread($this->file, $this->read_bytes);
- if(!get_magic_quotes_gpc())
- {
- echo $out;
- }
- else
- {
- echo stripslashes($out);
- }
- }
- //echo fread($file, filesize($file_dir . $file_name)) ;
- }
- }
/**
- * The return value is true or false, and the value is used to determine whether the file exists
- */
- public function is_file_exist(){
- return $this->file_exist;
- }
* Parameter type is string - */
- public function set_file_dir($file_dir=""){
- $this->file_dir = $file_dir;
- }
/**
- * Parameter type is string
- */
- public function set_file_name($file_name=""){
- $this->file_name = $file_name;
- }
/**
- * The parameter type is integer
- */
- public function set_read_bytes( $read_bytes=1024){
- $this->read_bytes = $read_bytes;
- }
- }
- ?>
-
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