PHP Download File

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PHP enables you to download file easily using built-in readfile() function. The readfile() function reads a file and writes it to the output buffer.

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PHP readfile() function

Syntax

1. int readfile ( string $filename [, bool $use_include_path = false [, resource $context ]] )  

$filename: represents the file name

$use_include_path: it is the optional parameter. It is by default false. You can set it to true to the search the file in the included_path.

$context: represents the context stream resource.

int: it returns the number of bytes read from the file.

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PHP Download File Example: Text File

  

<?php  
   $file_url = 'http://www.tutorialspro.com/f.txt';  
   header('Content-Type: application/octet-stream');  
   header("Content-Transfer-Encoding: utf-8");   
   header("Content-disposition: attachment; filename=\"" . 
   basename($file_url) . "\"");   
   readfile($file_url);  
?>

PHP Download File Example: Binary File

<?php  
   $file_url = 'http://www.myremoteserver.com/file.exe';  
    header('Content-Type: application/octet-stream');  
   header("Content-Transfer-Encoding: Binary");   
   header("Content-disposition: attachment; filename=\"" . 
   basename($file_url) . "\"");   
   readfile($file_url);  
?>  

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