PHP Warning: PHP Startup: Unable to load dynamic library '/usr/local/php5/lib/php/extensions/no-debug-non-zts-20090626/mcrypt.so' - libltdl.so.3: cannot open shared object file: No such file or directory in Unknown on line 0
沒有找到libltdl.so.3文件,應該是mcrypt擴展依賴的文件沒有,用ldd查看依賴關係,果然是缺少了libltdl.so.3文件,
[root@localhost mcrypt]# ldd /usr/local/php5/lib/php/extensions/no-debug-non-zts-20090626/mcrypt.so
linux-gate.so.1 => (0xb7f09000)
libmcrypt.so.4 => /usr/local/libmcrypt/lib/libmcrypt.so.4 (0xb7ecf000)
libltdl.so.3 => not found
libc.so.6 => /lib/libc.so.6 (0xb7d6f000)
/lib/ld-linux.so.2 (0x0011f000)
網上找了一下資料,是由於安裝目錄結構的原因引起在/usr/lib/目錄下沒有找到libltdl.so.3文件,把/usr/local/lib/libltdl.so.3文件鏈接過去就可以了
ln -s /usr/local/lib/libltdl.so.3 /usr/lib/libltdl.so.3
做個鏈接用,查看依賴
[root@localhost mcrypt]# ldd /usr/local/php5/lib/php/extensions/no-debug-non-zts-20090626/mcrypt.so
linux-gate.so.1 => (0xb7f2d000)
libmcrypt.so.4 => /usr/local/libmcrypt/lib/libmcrypt.so.4 (0xb7ef3000)
libltdl.so.3 => /usr/lib/libltdl.so.3 (0xb7ee6000)
libc.so.6 => /lib/libc.so.6 (0xb7d8d000)
libdl.so.2 => /lib/libdl.so.2 (0xb7d88000)
/lib/ld-linux.so.2 (0x0011f000)
OK,已經找到。
php -m 查看已經沒有警告提示,mcrypt也已經出來,重啓apache,確定mcrypt擴展成功。