Question

我正在寻找将torrent一样的将单个文件拆分为多个文件的代码。

我将尝试作为Web应用程序进行尝试。所以我需要后端的代码

当用户输入200mb的文件时；输出必须将文件分成较小的部分，例如20kb / file

Answer 1

你去...

// 20 KB
$partSize = 20 * 1024;
$fileSize = filesize($theFile);

$fileNameTemplate = __DIR__ . '/split_no_%04d.whatever';
$fileHandle = fopen($theFile, 'r');
$counter = 0;
while($fileSize > 0 && !feof($fileHandle)) {
    $counter++;
    // create a new filename
    $newFile = sprintf($fileNameTemplate, $counter);
    // open new file
    $writeHandle = fopen($newFile, 'w');
    // read portion of the big file
    $content = fread($fileHandle, $partSize);
    // write it to the new file
    $written = fwrite($writeHandle, $content);
    // close file pointer
    fclose($writeHandle);
    // adjust remaining bytes
    $fileSize -= $written;

    echo '- '. $written . ' bytes'. PHP_EOL;
}

如何使用php将单个文件分成多个部分？

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