What is the best way to upload and reassemble a split file, such as a split Zip archive, using PHP?

To upload and reassemble a split file, such as a split Zip archive, using PHP, you can use the following steps: 1. Upload all parts of the split file to the server. 2. Use PHP to read each part of the split file and write them to a new, combined file. 3. Once all parts are written to the new file, you can then extract the contents of the Zip archive using a library like ZipArchive. 

<?php
// Define the file parts
$file_parts = array('part1.zip', 'part2.zip', 'part3.zip');

// Create a new file to write the combined content
$combined_file = fopen('combined.zip', 'wb');

// Loop through each file part and write its content to the combined file
foreach ($file_parts as $part) {
    $part_content = file_get_contents($part);
    fwrite($combined_file, $part_content);
}

// Close the combined file
fclose($combined_file);

// Extract the contents of the combined Zip archive
$zip = new ZipArchive;
if ($zip->open('combined.zip') === TRUE) {
    $zip->extractTo('extracted_files/');
    $zip->close();
    echo 'Files extracted successfully.';
} else {
    echo 'Failed to extract files.';
}
?>

Keywords

file upload reassemble split file Zip archive PHP

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