How to Copy a Directory\'s Contents Using PHP Recursively?-PHP Tutorial-php.cn

How to Copy a Directory\'s Contents Using PHP Recursively?

Patricia Arquette

Release： 2024-10-29 10:30:29

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How to Copy a Directory's Contents Using PHP Recursively?

Copying a Directory's Contents using PHP

When attempting to copy the contents of a directory to another location, the code copy ("old_location/*.*","new_location/") may encounter an error indicating that the stream is not found. This can occur when an asterisk (*) is used alone in the copy function.

To effectively copy the entire contents of a directory, including its subdirectories and files, we can employ a recursive function like the one below:

<code class="php">function recurseCopy(
    string $sourceDirectory,
    string $destinationDirectory,
    string $childFolder = ''
): void {
    // Open the source directory
    $directory = opendir($sourceDirectory);

    // Check if the destination directory exists, if not, create it
    if (is_dir($destinationDirectory) === false) {
        mkdir($destinationDirectory);
    }

    // If there's a child folder specified, create it if it doesn't exist
    if ($childFolder !== '') {
        if (is_dir("$destinationDirectory/$childFolder") === false) {
            mkdir("$destinationDirectory/$childFolder");
        }

        // Loop through the files in the source directory
        while (($file = readdir($directory)) !== false) {
            // Ignore current and parent directories
            if ($file === '.' || $file === '..') {
                continue;
            }

            // If the current file is a directory, recursively copy it
            if (is_dir("$sourceDirectory/$file") === true) {
                recurseCopy("$sourceDirectory/$file", "$destinationDirectory/$childFolder/$file");
            }
            // If it's a file, simply copy it
            else {
                copy("$sourceDirectory/$file", "$destinationDirectory/$childFolder/$file");
            }
        }

        // Close the source directory
        closedir($directory);

        // Recursion ends here
        return;
    }

    // Loop through the files in the source directory
    while (($file = readdir($directory)) !== false) {
        // Ignore current and parent directories
        if ($file === '.' || $file === '..') {
            continue;
        }

        // If the current file is a directory, recursively copy it
        if (is_dir("$sourceDirectory/$file") === true) {
            recurseCopy("$sourceDirectory/$file", "$destinationDirectory/$file");
        }
        // If it's a file, simply copy it
        else {
            copy("$sourceDirectory/$file", "$destinationDirectory/$file");
        }
    }

    // Close the source directory
    closedir($directory);
}</code>

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By using this recursive function, we can efficiently copy the entire contents of a directory to another location, ensuring that all subdirectories and files are properly transferred.

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