php找不到zend擴展（ioncube）

May 6, 2015

在我擁有的一台伺服器上php-5.6.7-1，我順利安裝ioncube在那裡。我放入ioncube_loader_lin_5.6.so，/usr/lib/php5/20131226並添加zend_extension = ioncube_loader_lin_5.6.so到php.ini。

但這不適用於其他伺服器。我已經到了php-5.4.4-14+deb7u4。我放入ioncube_loader_lin_5.4.so，/usr/lib/php5/20100525並添加zend_extension = ioncube_loader_lin_5.4.so到php.ini。

$ php -i | grep extension_dir
extension_dir =&gt; /usr/lib/php5/20100525 =&gt; /usr/lib/php5/20100525
$ php --version
Failed loading ioncube_loader_lin_5.4.so:  ioncube_loader_lin_5.4.so: cannot open shared object file: No such file or directory
PHP 5.4.4-14+deb7u4 (cli) (built: Aug 23 2013 14:37:41) 
Copyright (c) 1997-2012 The PHP Group
Zend Engine v2.4.0, Copyright (c) 1998-2012 Zend Technologies

現在到有趣的部分：

$ strace php --version
...
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/x86_64-linux-gnu/tls/x86_64/ioncube_loader_lin_5.4.so", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/lib/x86_64-linux-gnu/tls/x86_64", 0x7fff2cc8cf60) = -1 ENOENT (No such file or directory)
open("/lib/x86_64-linux-gnu/tls/ioncube_loader_lin_5.4.so", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/lib/x86_64-linux-gnu/tls", 0x7fff2cc8cf60) = -1 ENOENT (No such file or directory)
open("/lib/x86_64-linux-gnu/x86_64/ioncube_loader_lin_5.4.so", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/lib/x86_64-linux-gnu/x86_64", 0x7fff2cc8cf60) = -1 ENOENT (No such file or directory)
open("/lib/x86_64-linux-gnu/ioncube_loader_lin_5.4.so", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/lib/x86_64-linux-gnu", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/usr/lib/x86_64-linux-gnu/tls/x86_64/ioncube_loader_lin_5.4.so", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/usr/lib/x86_64-linux-gnu/tls/x86_64", 0x7fff2cc8cf60) = -1 ENOENT (No such file or directory)
open("/usr/lib/x86_64-linux-gnu/tls/ioncube_loader_lin_5.4.so", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/usr/lib/x86_64-linux-gnu/tls", 0x7fff2cc8cf60) = -1 ENOENT (No such file or directory)
open("/usr/lib/x86_64-linux-gnu/x86_64/ioncube_loader_lin_5.4.so", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/usr/lib/x86_64-linux-gnu/x86_64", 0x7fff2cc8cf60) = -1 ENOENT (No such file or directory)
open("/usr/lib/x86_64-linux-gnu/ioncube_loader_lin_5.4.so", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/usr/lib/x86_64-linux-gnu", {st_mode=S_IFDIR|0755, st_size=20480, ...}) = 0
open("/lib/tls/x86_64/ioncube_loader_lin_5.4.so", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/lib/tls/x86_64", 0x7fff2cc8cf60) = -1 ENOENT (No such file or directory)
open("/lib/tls/ioncube_loader_lin_5.4.so", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/lib/tls", 0x7fff2cc8cf60)        = -1 ENOENT (No such file or directory)
open("/lib/x86_64/ioncube_loader_lin_5.4.so", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/lib/x86_64", 0x7fff2cc8cf60)     = -1 ENOENT (No such file or directory)
open("/lib/ioncube_loader_lin_5.4.so", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/lib", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/usr/lib/tls/x86_64/ioncube_loader_lin_5.4.so", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/usr/lib/tls/x86_64", 0x7fff2cc8cf60) = -1 ENOENT (No such file or directory)
open("/usr/lib/tls/ioncube_loader_lin_5.4.so", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/usr/lib/tls", 0x7fff2cc8cf60)    = -1 ENOENT (No such file or directory)
open("/usr/lib/x86_64/ioncube_loader_lin_5.4.so", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/usr/lib/x86_64", 0x7fff2cc8cf60) = -1 ENOENT (No such file or directory)
open("/usr/lib/ioncube_loader_lin_5.4.so", O_RDONLY) = -1 ENOENT (No such file or directory)
stat("/usr/lib", {st_mode=S_IFDIR|0755, st_size=12288, ...}) = 0
munmap(0x7f1f3e188000, 37265)           = 0
write(2, "Failed loading ioncube_loader_li"..., 128Failed loading ioncube_loader_lin_5.4.so:  ioncube_loader_lin_5.4.so: cannot open shared object file: No such file or directory
) = 128
open("/usr/lib/php5/20100525/mysqlnd.so", O_RDONLY) = 6
...

在第一台伺服器上php顯然載入庫沒有任何問題：

$ strace php --version
...
futex(0x7fbf391860c8, FUTEX_WAKE_PRIVATE, 2147483647) = 0
open("/usr/lib/php5/20131226/ioncube_loader_lin_5.6.so", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0&gt;\0\1\0\0\0\220o\2\0\0\0\0\0"..., 832) = 832
...

是否與某些configure選項有關，這些選項阻止它在內部搜尋 zend 擴展/usr/lib/php5/20100525？有沒有辦法找到它們？我是什麼做的？

嘗試指定完整路徑：
zend_extension = /full/path/to/ioncube_loader_lin_5.4.so
我不知道這個變化是從什麼時候開始的，但是一個習慣是始終指定完整路徑，zend_extension直到建構 PHP 5.5（在 Fedora 上，但我認為在 Debian 上是一樣的）。我認為這是維護者的選擇。