CODEWITHSUNDEEP
php
Teddy76db
Teddy76db

Reputation: 23

PHP > Download ZIP : Network Error

i have a big problem with my php code, i use a html form for get the 'filename', work perfectly, BUT my problem is : when i launch the download, all browser's download zip files, and get Network error, ex : 578ko / 600ko : Network Error.

<?php
$dir = "lol/"; // trailing slash is important
$file = $dir .$_POST['filename'] ;

if (file_exists($file)) {
    header('Pragma: public');
    header("Expires: 0");
    header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
    header("Cache-Control: public");
    header("Content-Transfer-Encoding: binary");
    header("Content-type: application/zip");
    header('Content-Disposition: attachment; filename='.basename($file));
    header('Cache-Control: must-revalidate');
    header('Content-Length: ' . filesize($file));

    readfile($file);

} else {
    echo "Le fichier $file n'existe pas.";
}
exit;
?>

Upvotes: 2

Views: 1490

Answers (2)

SmileIT
SmileIT

Reputation: 468

Check your web server timeout values and increase/define to higher value. Also turn off output buffering.

<?php
$dir = "lol/"; // trailing slash is important
$file = $dir .$_POST['filename'] ;
//Turn off output buffering
if (ob_get_level())
   ob_end_clean();

if (file_exists($file)) {
    header('Pragma: public');
    header("Expires: 0");
    header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
    header("Cache-Control: public");
    header("Content-Transfer-Encoding: binary");
    header("Content-type: application/zip");
    header('Content-Disposition: attachment; filename='.basename($file));
    header('Cache-Control: must-revalidate');
    header('Content-Length: ' . filesize($file));

    readfile($file);

} else {
    echo "Le fichier $file n'existe pas.";
}
exit;
?>

Upvotes: 5

Professor Abronsius
Professor Abronsius

Reputation: 33804

You can try reading and sending chunks - it might help

<?php

    $dir = "lol/"; // trailing slash is important
    $file = $dir . $_POST['filename'] ;

    if( file_exists( $file ) ) {

        header('Pragma: public');
        header("Expires: 0");
        header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
        header("Cache-Control: public");
        header("Content-Transfer-Encoding: binary");
        header("Content-type: application/zip");
        header('Content-Disposition: attachment; filename=' . basename( $file ) );
        header('Cache-Control: must-revalidate');
        header('Content-Length: ' . filesize( $file ) );

        /*
            send the file in chunks rather than trying to read and send all at once
        */
        if( $fh = @fopen( $file, 'rb' ) ) {
            while( !@feof( $fh ) and ( connection_status()==0 ) ) {
                print( fread( $fh, 1024*8 ) );
                flush();
            }
            @fclose( $fh );
        }

    } else {
        echo "Le fichier $file n'existe pas.";
    }
    exit;
?>

Upvotes: 1

Related Questions