PHP文件复制与文件删除同步

要实现PHP文件复制和文件删除的同步，你可以使用以下方法：

1. 使用copy()函数复制文件：

$source = 'source_file.php';
$destination = 'destination_file.php';

if (copy($source, $destination)) {
    echo "File copied successfully";
} else {
    echo "Failed to copy file";
}

2. 使用unlink()函数删除文件：

$fileToDelete = 'file_to_delete.php';

if (unlink($fileToDelete)) {
    echo "File deleted successfully";
} else {
    echo "Failed to delete file";
}

3. 将复制和删除操作放在一个函数中，并确保它们按顺序执行：

function copyAndDeleteFile($source, $destination, $fileToDelete) {
    if (copy($source, $destination)) {
        echo "File copied successfully";
        
        if (unlink($fileToDelete)) {
            echo "File deleted successfully";
        } else {
            echo "Failed to delete file";
        }
    } else {
        echo "Failed to copy file";
    }
}

$source = 'source_file.php';
$destination = 'destination_file.php';
$fileToDelete = 'file_to_delete.php';

copyAndDeleteFile($source, $destination, $fileToDelete);

这样，当你调用copyAndDeleteFile()函数时，文件复制和删除操作将按顺序同步执行。如果复制成功，则尝试删除文件；如果删除成功，则输出相应的消息。