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? ??? ?? PHP ???? PHP?? ??? ?? ????? ??? ??? ? ?????

PHP?? ??? ?? ????? ??? ??? ? ?????

Dec 16, 2024 pm 06:18 PM

How Can I Achieve Asynchronous File Downloads in PHP?

PHP? ???? ?????? ?? ????: ?? ???

??? ? ??????? ??? ? ??? ?????? ?????? ?? ??? ?? ?????. ? ??? ???? ?? ???? ?? ??? ??? ???? ??? ??? ? ?? ??? ??? ?????. ? ????? PHP? ???? ???? ?? ????? ???? ??? ??? ???.

??? AJAX ??? ????? ???? ????? ??? ???????. AJAX ??? PHP ????? ???? ???, PHP ????? ??? ??? ???? CSV ??? ?????. ??? ?? ??? CSV ??? ??????? ????? ???? ????.

?? ???? ??? ?? AJAX ??

??? ?? ??? ??? ?? ??? ???? csv() AJAX ??? ?????.

function csv(){
    $ajaxRequest = ajax();//ajax() initializes XML HTTP Requests
    $postdata = "data=" + document.getElementById("id").value;
    $ajaxRequest.onreadystatechange = function(){
        $ajaxDisplay = document.getElementById('ajaxDiv');
        if($ajaxRequest.readyState == 4 && $ajaxRequest.status==200){
            $ajaxDisplay.innerHTML = $ajaxRequest.responseText;
        }
    }
    $ajaxRequest.open("POST","csv.php",false);
    $ajaxRequest.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
    $ajaxRequest.send($postdata);
}

PHP ?? ?? ?? ? ???? ????

csv.php ????? ?? ?? ? ???? ????? ?????. ??? ??? ????? ??? ??? ???? ????.

$fileName = 'file.csv';
$downloadFileName = 'newfile.csv';
if (file_exists($fileName)) {
    header('Content-Description: File Transfer');
    header('Content-Type: text/csv');
    header('Content-Disposition: attachment; filename='.$downloadFileName);
    ob_clean();
    flush();
    readfile($fileName);
    exit;
}
echo "done";

? ????? csv.php ?? ???? file.csv? ??? ??? ?(ajaxDiv ??)? ?????. ) ????? ???? ??

???: ? ?? ???? ????

??? ??????? AJAX? ??? ? ????. ?? ???? ??? ??? ???? ? ?? ??? document.location = ....

window.open('download.php?file=' . $fileName, '_blank');

// or

document.location = 'download.php?file=' . $fileName;

??

??? ??? ?? PHP? ??????? AJAX? ???? ???. ???? ??? ? ?? ??? ?? ??? ?????? ????? ???? ?? ??? ???.

? ??? PHP?? ??? ?? ????? ??? ??? ? ?????? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!

? ????? ??
? ?? ??? ????? ???? ??? ??????, ???? ?????? ????. ? ???? ?? ???? ?? ??? ?? ????. ???? ??? ???? ???? ??? ?? admin@php.cn?? ?????.

? AI ??

Undresser.AI Undress

Undresser.AI Undress

???? ?? ??? ??? ?? AI ?? ?

AI Clothes Remover

AI Clothes Remover

???? ?? ???? ??? AI ?????.

Video Face Swap

Video Face Swap

??? ??? AI ?? ?? ??? ???? ?? ???? ??? ?? ????!

???

??? ??

???++7.3.1

???++7.3.1

???? ?? ?? ?? ???

SublimeText3 ??? ??

SublimeText3 ??? ??

??? ??, ???? ?? ????.

???? 13.0.1 ???

???? 13.0.1 ???

??? PHP ?? ?? ??

???? CS6

???? CS6

??? ? ?? ??

SublimeText3 Mac ??

SublimeText3 Mac ??

? ??? ?? ?? ?????(SublimeText3)

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