复制多个文件时，php copy（）关闭连接

Question

我正在尝试使用PHP中的copy（）函数复制五个大文件，但是，当我尝试同时复制文件时，只有最后一个文件可以继续复制，而其他四个文件则突然停止。

<?php


$path_to_large_file_1 = 'http://very_large_file.zip';
$newfile_1 = '/home/username/public_html/files/file1.zip';

copy($path_to_large_file_1, $newfile_1);



$path_to_large_file_2 = 'http://very_large_file.zip';
$newfile_2 = '/home/username/public_html/files/file2.zip';

copy($path_to_large_file_2, $newfile_2);




$path_to_large_file_3 = 'http://very_large_file.zip';
$newfile_3 = '/home/username/public_html/files/file3.zip';

copy($path_to_large_file_3, $newfile_3);




$path_to_large_file_4 = 'http://very_large_file.zip';
$newfile_4 = '/home/username/public_html/files/file4.zip';

copy($path_to_large_file_4, $newfile_4);




$path_to_large_file_5 = 'http://very_large_file.zip';
$newfile_5 = '/home/username/public_html/files/file5.zip';

copy($path_to_large_file_5, $newfile_5);




?>