我正在使用 phpseclib3 v3.0.11 来与 SFTP 交互。登录完美，我也可以毫无问题地更改目录，我也可以直接下载文件并且它可以工作。
唯一不起作用的是带有nlist()or的目录列表rawlist()，我需要它循环目录中的所有文件才能下载它们，因为我事先不知道文件名。
错误堆栈跟踪是：
LengthException: 2016226605 bytes needed; 6270 bytes available in /app/vendor/phpseclib/phpseclib/phpseclib/Common/Functions/Strings.php:140
Stack trace:
#0 /app/vendor/phpseclib/phpseclib/phpseclib/Net/SFTP.php(1096): phpseclib3\Common\Functions\Strings::unpackSSH2('s', ' 2 ftpadmin ftp...')
#1 /app/vendor/phpseclib/phpseclib/phpseclib/Net/SFTP.php(974): phpseclib3\Net\SFTP->readlist('/users/MPMCINQU...', false)
#2 /app/vendor/phpseclib/phpseclib/phpseclib/Net/SFTP.php(960): phpseclib3\Net\SFTP->nlist_helper('.', false, '')
#3 /app/job.php(57): phpseclib3\Net\SFTP->nlist()
#4 {main}-> NET_SFTP_INIT (0.0001s)
我的代码很简单：
$ftp = new SFTP($ftp_server);
$ftp->login($ftp_user_name, $ftp_password);
$ftp->chdir("OUTBOUND")
print_r($ftp->nlist());
这是$ftp->getSFTPLog()chdir 命令后的输出：
-> NET_SFTP_READDIR (0.0001s)
00000000 00:00:00:03:31:32:32 ....122
<- NET_SFTP_NAME (0.1175s)
00000000 00:00:00:2c:00:00:00:01:2e:00:00:00:36:64:72:77 ...,........6drw
00000010 78:72:2d:78:2d:2d:2d:20:32:20:66:74:70:61:64:6d xr-x--- 2 ftpadm
00000020 69:6e:20:66:74:70:61:64:6d:69:6e:20:20:20:20:20 in ftpadmin
00000030 20:20:20:30:20:4e:6f:76:20:31:36:20:31:31:3a:33 0 Nov 16 11:3
00000040 33:20:2e:00:00:00:3c:00:00:41:e8:61:93:97:0b:61 3 .......A.a...a
00000050 93:97:0b:00:00:00:02:2e:2e:00:00:00:36:64:72:77 ............6drw
00000060 78:72:2d:78:2d:2d:2d:20:32:20:66:74:70:61:64:6d xr-x--- 2 ftpadm
00000070 69:6e:20:66:74:70:61:64:6d:69:6e:20:20:20:20:20 in ftpadmin
00000080 20:20:20:30:20:53:65:70:20:33:30:20:32:30:32:31 0 Sep 30 2021
00000090 20:2e:2e:00:00:00:3c:00:00:41:e8:61:55:ee:8b:61 ........A.aU..a
000000a0 55:ee:8b:00:00:00:20:43:69:6e:71:75:69:6e:61:5f U..... Cinquina_
000000b0 32:30:32:31:31:31:31:30:2d:30:35:30:39:31:38:2d 20211110-050918-
000000c0 34:35:37:2e:63:73:76:00:00:00:55:2d:72:77:78:72 457.csv...U-rwxr
000000d0 2d:78:2d:2d:2d:20:31:20:66:74:70:61:64:6d:69:6e -x--- 1 ftpadmin
000000e0 20:66:74:70:61:64:6d:69:6e:20:20:20:20:20:20:38 ftpadmin 8
000000f0 39:34:20:4e:6f:76:20:31:30:20:31:30:3a:30:39:20 94 Nov 10 10:09
00000100 43:69:6e:71:75:69:6e:61:5f:32:30:32:31:31:31:31 Cinquina_2021111
00000110 30:2d:30:35:30:39:31:38:2d:34:35:37:2e:63:73:76 0-050918-457.csv
00000120 00:00:00:3d:00:00:00:00:00:00:03:7e:00:00:81:e8 ...=.......~....
00000130 61:8b:9a:4f:61:8b:9a:4f:00:00:00:20:43:69:6e:71 a..Oa..O... Cinq
00000140 75:69:6e:61:5f:32:30:32:31:31:31:31:30:2d:30:35 uina_20211110-05
00000150 31:33:34:31:2d:37:31:36:2e:63:73:76:00:00:00:55 1341-716.csv...U
00000160 2d:72:77:78:72:2d:78:2d:2d:2d:20:31:20:66:74:70 -rwxr-x--- 1 ftp
00000170 61:64:6d:69:6e:20:66:74:70:61:64:6d:69:6e:20:20 admin ftpadmin
00000180 20:20:20:20:35:39:31:20:4e:6f:76:20:31:30:20:31 591 Nov 10 1
00000190 30:3a:31:33:20:43:69:6e:71:75:69:6e:61:5f:32:30 0:13 Cinquina_20
000001a0 32:31:31:31:31:30:2d:30:35:31:33:34:31:2d:37:31 211110-051341-71
000001b0 36:2e:63:73:76:00:00:00:3d:00:00:00:00:00:00:02 6.csv...=.......
000001c0 4f:00:00:81:e8:61:8b:9b:57:61:8b:9b:57:00:00:00 O....a..Wa..W...
000001d0 20:43:69:6e:71:75:69:6e:61:5f:32:30:32:31:31:31 Cinquina_202111
000001e0 31:30:2d:30:35:31:33:34:31:2d:38:36:34:2e:63:73 10-051341-864.cs
000001f0 76:00:00:00:55:2d:72:77:78:72:2d:78:2d:2d:2d:20 v...U-rwxr-x---
00000200 31:20:66:74:70:61:64:6d:69:6e:20:66:74:70:61:64 1 ftpadmin ftpad
00000210 6d:69:6e:20:20:20:20:20:20:35:36:33:20:4e:6f:76 min 563 Nov
00000220 20:31:30:20:31:30:3a:31:33:20:43:69:6e:71:75:69 10 10:13 Cinqui
00000230 6e:61:5f:32:30:32:31:31:31:31:30:2d:30:35:31:33 na_20211110-0513
00000240 34:31:2d:38:36:34:2e:63:73:76:00:00:00:3d:00:00 41-864.csv...=..
00000250 00:00:00:00:02:33:00:00:81:e8:61:8b:9b:57:61:8b .....3....a..Wa.
00000260 9b:57:00:00:00:20:43:69:6e:71:75:69:6e:61:5f:32 .W... Cinquina_2
00000270 30:32:31:31:31:31:30:2d:30:35:31:33:34:32:2d:34 0211110-051342-4
00000280 30:39:2e:63:73:76:00:00:00:55:2d:72:77:78:72:2d 09.csv...U-rwxr-
00000290 78:2d:2d:2d:20:31:20:66:74:70:61:64:6d:69:6e:20 x--- 1 ftpadmin
000002a0 66:74:70:61:64:6d:69:6e:20:20:20:20:20:31:36:34 ftpadmin 164
000002b0 36:20:4e:6f:76:20:31:30:20:31:30:3a:31:33:20:43 6 Nov 10 10:13 C
000002c0 69:6e:71:75:69:6e:61:5f:32:30:32:31:31:31:31:30 inquina_20211110
000002d0 2d:30:35:31:33:34:32:2d:34:30:39:2e:63:73:76:00 -051342-409.csv.
000002e0 00:00:3d:00:00:00:00:00:00:06:6e:00:00:81:e8:61 ..=.......n....a
000002f0 8b:9b:57:61:8b:9b:58:00:00:00:20:43:69:6e:71:75 ..Wa..X... Cinqu
00000300 69:6e:61:5f:32:30:32:31:31:31:31:30:2d:30:35:31 ina_20211110-051
00000310 33:34:32:2d:34:34:33:2e:63:73:76:00:00:00:55:2d 342-443.csv...U-
00000320 72:77:78:72:2d:78:2d:2d:2d:20:31:20:66:74:70:61 rwxr-x--- 1 ftpa
00000330 64:6d:69:6e:20:66:74:70:61:64:6d:69:6e:20:20:20 dmin ftpadmin
00000340 20:20:31:30:39:39:20:4e:6f:76:20:31:30:20:31:30 1099 Nov 10 10
00000350 3a:31:33:20:43:69:6e:71:75:69:6e:61:5f:32:30:32 :13 Cinquina_202
00000360 31:31:31:31:30:2d:30:35:31:33:34:32:2d:34:34:33 11110-051342-443
00000370 2e:63:73:76:00:00:00:3d:00:00:00:00:00:00:04:4b .csv...=.......K
00000380 00:00:81:e8:61:8b:9b:57:61:8b:9b:58:00:00:00:20 ....a..Wa..X...
00000390 43:69:6e:71:75:69:6e:61:5f:32:30:32:31:31:31:31 Cinquina_2021111
000003a0 30:2d:30:35:31:33:34:33:2d:30:35:39:2e:63:73:76 0-051343-059.csv
000003b0 00:00:00:55:2d:72:77:78:72:2d:78:2d:2d:2d:20:31 ...U-rwxr-x--- 1
000003c0 20:66:74:70:61:64:6d:69:6e:20:66:74:70:61:64:6d ftpadmin ftpadm
000003d0 69:6e:20:20:20:20:20:31:36:30:31:20:4e:6f:76:20 in 1601 Nov
000003e0 31:30:20:31:30:3a:31:33:20:43:69:6e:71:75:69:6e 10 10:13 Cinquin
000003f0 61:5f:32:30:32:31:31:31:31:30:2d:30:35:31:33:34 a_20211110-05134
00000400 33:2d:30:35:39:2e:63:73:76:00:00:00:3d:00:00:00 3-059.csv...=...
00000410 00:00:00:06:41:00:00:81:e8:61:8b:9b:58:61:8b:9b ....A....a..Xa..
00000420 58:00:00:00:20:43:69:6e:71:75:69:6e:61:5f:32:30 X... Cinquina_20
00000430 32:31:31:31:31:30:2d:30:35:31:33:34:33:2d:34:39 211110-051343-49
00000440 38:2e:63:73:76:00:00:00:55:2d:72:77:78:72:2d:78 8.csv...U-rwxr-x
00000450 2d:2d:2d:20:31:20:66:74:70:61:64:6d:69:6e:20:66 --- 1 ftpadmin f
00000460 74:70:61:64:6d:69:6e:20:20:20:20:20:20:38:31:34 tpadmin 814
00000470 20:4e:6f:76:20:31:30:20:31:30:3a:31:33:20:43:69 Nov 10 10:13 Ci
00000480 6e:71:75:69:6e:61:5f:32:30:32:31:31:31:31:30:2d nquina_20211110-
00000490 30:35:31:33:34:33:2d:34:39:38:2e:63:73:76:00:00 051343-498.csv..
000004a0 00:3d:00:00:00:00:00:00:03:2e:00:00:81:e8:61:8b .=............a.
000004b0 9b:59:61:8b:9b:59:00:00:00:20:43:69:6e:71:75:69 .Ya..Y... Cinqui
000004c0 6e:61:5f:32:30:32:31:31:31:31:32:2d:30:38:35:31 na_20211112-0851
000004d0 32:33:2d:34:32:34:2e:63:73:76:00:00:00:55:2d:72 23-424.csv...U-r
000004e0 77:78:72:2d:78:2d:2d:2d:20:31:20:66:74:70:61:64 wxr-x--- 1 ftpad
000004f0 6d:69:6e:20:66:74:70:61:64:6d:69:6e:20:20:20:20 min ftpadmin
00000500 20:20:35:39:31:20:4e:6f:76:20:31:32:20:31:33:3a 591 Nov 12 13:
00000510 35:31:20:43:69:6e:71:75:69:6e:61:5f:32:30:32:31 51 Cinquina_2021
00000520 31:31:31:32:2d:30:38:35:31:32:33:2d:34:32:34:2e 1112-085123-424.
00000530 63:73:76:00:00:00:3d:00:00:00:00:00:00:02:4f:00 csv...=.......O.
00000540 00:81:e8:61:8e:71:5d:61:8e:71:5d:00:00:00:20:43 ...a.q]a.q]... C
00000550 69:6e:71:75:69:6e:61:5f:32:30:32:31:31:31:31:32 inquina_20211112
00000560 2d:30:38:35:31:32:33:2d:35:31:39:2e:63:73:76:00 -085123-519.csv.
00000570 00:00:55:2d:72:77:78:72:2d:78:2d:2d:2d:20:31:20 ..U-rwxr-x--- 1
00000580 66:74:70:61:64:6d:69:6e:20:66:74:70:61:64:6d:69 ftpadmin ftpadmi
00000590 6e:20:20:20:20:20:31:36:34:36:20:4e:6f:76:20:31 n 1646 Nov 1
000005a0 32:20:31:33:3a:35:31:20:43:69:6e:71:75:69:6e:61 2 13:51 Cinquina
000005b0 5f:32:30:32:31:31:31:31:32:2d:30:38:35:31:32:33 _20211112-085123
000005c0 2d:35:31:39:2e:63:73:76:00:00:00:3d:00:00:00:00 -519.csv...=....
000005d0 00:00:06:6e:00:00:81:e8:61:8e:71:5d:61:8e:71:5e ...n....a.q]a.q^
000005e0 00:00:00:20:43:69:6e:71:75:69:6e:61:5f:32:30:32 ... Cinquina_202
000005f0 31:31:31:31:32:2d:30:38:35:31:32:33:2d:35:37:31 11112-085123-571
00000600 2e:63:73:76:00:00:00:55:2d:72:77:78:72:2d:78:2d .csv...U-rwxr-x-
00000610 2d:2d:20:31:20:66:74:70:61:64:6d:69:6e:20:66:74 -- 1 ftpadmin ft
00000620 70:61:64:6d:69:6e:20:20:20:20:20:20:38:31:34:20 padmin 814
00000630 4e:6f:76:20:31:32:20:31:33:3a:35:31:20:43:69:6e Nov 12 13:51 Cin
00000640 71:75:69:6e:61:5f:32:30:32:31:31:31:31:32:2d:30 quina_20211112-0
00000650 38:35:31:32:33:2d:35:37:31:2e:63:73:76:00:00:00 85123-571.csv...
00000660 3d:00:00:00:00:00:00:03:2e:00:00:81:e8:61:8e:71 =............a.q
00000670 5e:61:8e:71:5e:00:00:00:20:43:69:6e:71:75:69:6e ^a.q^... Cinquin
00000680 61:5f:32:30:32:31:31:31:31:32:2d:30:38:35:31:32 a_20211112-08512
00000690 33:2d:36:32:34:2e:63:73:76:00:00:00:55:2d:72:77 3-624.csv...U-rw
000006a0 78:72:2d:78:2d:2d:2d:20:31:20:66:74:70:61:64:6d xr-x--- 1 ftpadm
000006b0 69:6e:20:66:74:70:61:64:6d:69:6e:20:20:20:20:20 in ftpadmin
000006c0 20:35:36:33:20:4e:6f:76:20:31:32:20:31:33:3a:35 563 Nov 12 13:5
000006d0 31:20:43:69:6e:71:75:69:6e:61:5f:32:30:32:31:31 1 Cinquina_20211
000006e0 31:31:32:2d:30:38:35:31:32:33:2d:36:32:34:2e:63 112-085123-624.c
000006f0 73:76:00:00:00:3d:00:00:00:00:00:00:02:33:00:00 sv...=.......3..
00000700 81:e8:61:8e:71:5e:61:8e:71:5e:00:00:00:20:43:69 ..a.q^a.q^... Ci
00000710 6e:71:75:69:6e:61:5f:32:30:32:31:31:31:31:32:2d nquina_20211112-
00000720 30:38:35:31:32:34:2d:37:32:38:2e:63:73:76:00:00 085124-728.csv..
00000730 00:55:2d:72:77:78:72:2d:78:2d:2d:2d:20:31:20:66 .U-rwxr-x--- 1 f
00000740 74:70:61:64:6d:69:6e:20:66:74:70:61:64:6d:69:6e tpadmin ftpadmin
00000750 20:20:20:20:20:20:38:39:34:20:4e:6f:76:20:31:32 894 Nov 12
00000760 20:31:33:3a:35:31:20:43:69:6e:71:75:69:6e:61:5f 13:51 Cinquina_
00000770 32:30:32:31:31:31:31:32:2d:30:38:35:31:32:34:2d 20211112-085124-
00000780 37:32:38:2e:63:73:76:00:00:00:3d:00:00:00:00:00 728.csv...=.....
00000790 00:03:7e:00:00:81:e8:61:8e:71:5f:61:8e:71:5f:00 ..~....a.q_a.q_.
000007a0 00:00:20:43:69:6e:71:75:69:6e:61:5f:32:30:32:31 .. Cinquina_2021
000007b0 31:31:31:32:2d:30:38:35:31:32:34:2d:38:30:35:2e 1112-085124-805.
000007c0 63:73:76:00:00:00:55:2d:72:77:78:72:2d:78:2d:2d csv...U-rwxr-x--
000007d0 2d:20:31:20:66:74:70:61:64:6d:69:6e:20:66:74:70 - 1 ftpadmin ftp
000007e0 61:64:6d:69:6e:20:20:20:20:20:31:36:30:31:20:4e admin 1601 N
000007f0 6f:76:20:31:32:20:31:33:3a:35:31:20:43:69:6e:71 ov 12 13:51 Cinq
00000800 75:69:6e:61:5f:32:30:32:31:31:31:31:32:2d:30:38 uina_20211112-08
00000810 35:31:32:34:2d:38:30:35:2e:63:73:76:00:00:00:3d 5124-805.csv...=
00000820 00:00:00:00:00:00:06:41:00:00:81:e8:61:8e:71:5f .......A....a.q_
00000830 61:8e:71:5f:00:00:00:20:43:69:6e:71:75:69:6e:61 a.q_... Cinquina
00000840 5f:32:30:32:31:31:31:31:32:2d:30:38:35:31:32:34 _20211112-085124
00000850 2d:38:35:38:2e:63:73:76:00:00:00:55:2d:72:77:78 -858.csv...U-rwx
00000860 72:2d:78:2d:2d:2d:20:31:20:66:74:70:61:64:6d:69 r-x--- 1 ftpadmi
00000870 6e:20:66:74:70:61:64:6d:69:6e:20:20:20:20:20:31 n ftpadmin 1
00000880 30:39:39:20:4e:6f:76:20:31:32:20:31:33:3a:35:31 099 Nov 12 13:51
00000890 20:43:69:6e:71:75:69:6e:61:5f:32:30:32:31:31:31 Cinquina_202111
000008a0 31:32:2d:30:38:35:31:32:34:2d:38:35:38:2e:63:73 12-085124-858.cs
000008b0 76:00:00:00:3d:00:00:00:00:00:00:04:4b:00:00:81 v...=.......K...
000008c0 e8:61:8e:71:5f:61:8e:71:5f:00:00:00:20:43:69:6e .a.q_a.q_... Cin
000008d0 71:75:69:6e:61:5f:32:30:32:31:31:31:31:35:2d:30 quina_20211115-0
000008e0 39:32:30:32:33:2d:36:38:39:2e:63:73:76:00:00:00 92023-689.csv...
000008f0 55:2d:72:77:78:72:2d:78:2d:2d:2d:20:31:20:66:74 U-rwxr-x--- 1 ft
00000900 70:61:64:6d:69:6e:20:66:74:70:61:64:6d:69:6e:20 padmin ftpadmin
00000910 20:20:20:20:20:38:35:34:20:4e:6f:76:20:31:35:20 854 Nov 15
00000920 31:34:3a:32:30:20:43:69:6e:71:75:69:6e:61:5f:32 14:20 Cinquina_2
00000930 30:32:31:31:31:31:35:2d:30:39:32:30:32:33:2d:36 0211115-092023-6
00000940 38:39:2e:63:73:76:00:00:00:3d:00:00:00:00:00:00 89.csv...=......
00000950 03:56:00:00:81:e8:61:92:6c:aa:61:92:6c:aa:00:00 .V....a.l.a.l...
00000960 00:20:43:69:6e:71:75:69:6e:61:5f:32:30:32:31:31 . Cinquina_20211
00000970 31:31:35:2d:30:39:32:30:32:33:2d:37:36:37:2e:63 115-092023-767.c
00000980 73:76:00:00:00:55:2d:72:77:78:72:2d:78:2d:2d:2d sv...U-rwxr-x---
00000990 20:31:20:66:74:70:61:64:6d:69:6e:20:66:74:70:61 1 ftpadmin ftpa
000009a0 64:6d:69:6e:20:20:20:20:20:31:31:31:31:20:4e:6f dmin 1111 No
000009b0 76:20:31:35:20:31:34:3a:32:30:20:43:69:6e:71:75 v 15 14:20 Cinqu
000009c0 69:6e:61:5f:32:30:32:31:31:31:31:35:2d:30:39:32 ina_20211115-092
000009d0 30:32:33:2d:37:36:37:2e:63:73:76:00:00:00:3d:00 023-767.csv...=.
000009e0 00:00:00:00:00:04:57:00:00:81:e8:61:92:6c:aa:61 ......W....a.l.a
000009f0 92:6c:aa:00:00:00:20:43:69:6e:71:75:69:6e:61:5f .l.... Cinquina_
00000a00 32:30:32:31:31:31:31:35:2d:30:39:32:30:32:33:2d 20211115-092023-
00000a10 38:36:37:2e:63:73:76:00:00:00:55:2d:72:77:78:72 867.csv...U-rwxr
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... need to cut the log for body limit ...
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请问你能帮帮我吗？我正在使用 php 7.2 我真的不明白问题出在哪里，并且在谷歌上搜索这个错误到目前为止我还没有发现任何有用的东西。