源码安装zabbix3.2.7时PHP ldap Warning

问题如下：

解决方法：

1、首先查看源码安装的php模块中是否有ldap.so

[root@nms ldap]# ll  /usr/local/php/lib/php/extensions/no-debug-non-zts-20160303/
total 1576
-rwxr-xr-x 1 root root  129484 Aug 22 10:18 ldap.so               # 出现告警是因为此模块不存在，须要编译生成此模块并重新加载
-rwxr-xr-x 1 root root 1430846 Aug 21 19:38 opcache.so
[root@nms ldap]# 

2、如何本机中已经有ldap.so，只须要在php.ini文件中添加extension=ldap.so

     ; Dynamic Extensions ;
     ;;;;;;;;;;;;;;;;;;;;;;

     ; If you wish to have an extension loaded automatically, use the following
     ; syntax:
         extension=ldap.so          #新添加内容
     ;
     ;   extension=modulename.extension
     ;
     ; For example, on Windows:
     ;
     ;   extension=msql.dll
     ;
     ; ... or under UNIX:
     ;
     ;   extension=msql.so
     ;
     ; ... or with a path:
     ;
     ;   extension=/path/to/extension/msql.so
     ; 

3、如果相应的模块不存在

　　3.1下载相应的php版本源码到主目录，进行源码编译ldap模块(重点，其他模块如果缺失编译方法一样）

[root@nms ~]# tar jxvf php-7.1..tar.bz2
[root@nms ~]# ls
anaconda-ks.cfg                  install.log         lnmp-install.log  php-7.1..tar.bz2
databases_backup_20170821115223  install.log.syslog  php-7.1.

[root@nms ldap]# cd /root/php-7.1.7/ext/ldap/            #进入模块所在的源码位置
[root@nms ldap]# ll
total 144
-rw-rw-r-- 1 1000 1000   7374 Jul  6 17:30 config.m4
-rw-rw-r-- 1 1000 1000   1008 Jul  6 17:30 config.w32
-rw-rw-r-- 1 1000 1000     77 Jul  6 17:30 CREDITS
-rw-rw-r-- 1 1000 1000 102189 Jul  6 17:30 ldap.c
-rw-rw-r-- 1 1000 1000   4464 Jul  6 17:30 ldap.mak
-rw-rw-r-- 1 1000 1000   1546 Jul  6 17:30 LDAP_Win32_HOWTO.txt
-rw-rw-r-- 1 1000 1000   2315 Jul  6 17:30 php_ldap.h
drwxrwxr-x 2 1000 1000  12288 Jul  6 17:30 tests
[root@nms ldap]# /usr/local/php/bin/phpize             #编译PHP扩展的工具，主要是根据系统信息生成对应的configure文件   
Configuring for:
PHP Api Version:         20160303
Zend Module Api No:      20160303
Zend Extension Api No:   320160303
[root@nms ldap]# ./configure  --with-php-config=/usr/local/php/bin/php-config  --with-ldap   #编译
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /bin/grep -E
checking for a sed that does not truncate output... /bin/sed
........

[root@nms ldap]# make && make install                                                #安装
/bin/sh /root/php-7.1.7/ext/ldap/libtool --mode=compile cc -DLDAP_DEPRECATED=1 -I. -I/root/php-7.1.7/ext/ldap -DPHP_ATOM_INC -I/root/php-7.1.7/ext/ldap/include -I/root/php-7.1.7/ext/ldap/main -I/root/php-7.1.7/ext/ldap -I/usr/local/php/include/php -I/usr/local/php/include/php/main -I/usr/local/php/include/php/TSRM -I/usr/local/php/include/php/Zend -I/usr/local/php/include/php/ext -I/usr/local/php/include/php/ext/date/lib  -DHAVE_CONFIG_H  -g -O2   -c /root/php-7.1.7/ext/ldap/ldap.c -o ldap.lo 
mkdir .libs
 cc -DLDAP_DEPRECATED=1 -I. -I/root/php-7.1.7/ext/ldap -DPHP_ATOM_INC -I/root/php-7.1.7/ext/ldap/include -I/root/php-7.1.7/ext/ldap/main -I/root/php-7.1.7/ext/ldap -I/usr/local/php/include/php -I/usr/local/php/include/php/main -I/usr/local/php/include/php/TSRM -I/usr/local/php/include/php/Zend -I/usr/local/php/include/php/ext -I/usr/local/php/include/php/ext/date/lib -DHAVE_CONFIG_H -g -O2 -c /root/php-7.1.7/ext/ldap/ldap.c  -fPIC -DPIC -o .libs/ldap.o
/bin/sh /root/php-7.1.7/ext/ldap/libtool --mode=link cc -DPHP_ATOM_INC -I/root/php-7.1.7/ext/ldap/include -I/root/php-7.1.7/ext/ldap/main -I/root/php-7.1.7/ext/ldap -I/usr/local/php/include/php -I/usr/local/php/include/php/main -I/usr/local/php/include/php/TSRM -I/usr/local/php/include/php/Zend -I/usr/local/php/include/php/ext -I/usr/local/php/include/php/ext/date/lib  -DHAVE_CONFIG_H  -g -O2   -o ldap.la -export-dynamic -avoid-version -prefer-pic -module -rpath /root/php-7.1.7/ext/ldap/modules  ldap.lo -lldap -llber
cc -shared  .libs/ldap.o  -lldap -llber  -Wl,-soname -Wl,ldap.so -o .libs/ldap.so
creating ldap.la
(cd .libs && rm -f ldap.la && ln -s ../ldap.la ldap.la)
/bin/sh /root/php-7.1.7/ext/ldap/libtool --mode=install cp ./ldap.la /root/php-7.1.7/ext/ldap/modules
cp ./.libs/ldap.so /root/php-7.1.7/ext/ldap/modules/ldap.so
cp ./.libs/ldap.lai /root/php-7.1.7/ext/ldap/modules/ldap.la
PATH="$PATH:/sbin" ldconfig -n /root/php-7.1.7/ext/ldap/modules
----------------------------------------------------------------------
Libraries have been installed in:
   /root/php-7.1.7/ext/ldap/modules

If you ever happen to want to link against installed libraries
in a given directory, LIBDIR, you must either use libtool, and
specify the full pathname of the library, or use the `-LLIBDIR'
flag during linking and do at least one of the following:
   - add LIBDIR to the `LD_LIBRARY_PATH' environment variable
     during execution
   - add LIBDIR to the `LD_RUN_PATH' environment variable
     during linking
   - use the `-Wl,--rpath -Wl,LIBDIR' linker flag
   - have your system administrator add LIBDIR to `/etc/ld.so.conf'

See any operating system documentation about shared libraries for
more information, such as the ld(1) and ld.so(8) manual pages.
----------------------------------------------------------------------

Build complete.
Don't forget to run 'make test'.

Installing shared extensions:     /usr/local/php/lib/php/extensions/no-debug-non-zts-20160303/          #make 生成模块安装位置
[root@nms ldap]# 
[root@nms php-7.1.7]# ll /usr/local/php/lib/php/extensions/no-debug-non-zts-20160303/                   #确认ldap.so模块存在
total 1576
-rwxr-xr-x 1 root root  129484 Aug 22 10:18 ldap.so
-rwxr-xr-x 1 root root 1430846 Aug 21 19:38 opcache.so

[root@nms php-7.1.7]# vi /usr/local/php/etc/php.ini                                         #编辑php.ini，添加新生成的ldap.so模块

    853 default_socket_timeout = 60
    854 
    855 ; If your scripts have to deal with files from Macintosh systems,
    856 ; or you are running on a Mac and need to deal with files from
    857 ; unix or win32 systems, setting this flag will cause PHP to
    858 ; automatically detect the EOL character in those files so that
    859 ; fgets() and file() will work regardless of the source of the file.
    860 ; http://php.net/auto-detect-line-endings
    861 ;auto_detect_line_endings = Off
    862 
    863 ;;;;;;;;;;;;;;;;;;;;;;
    864 ; Dynamic Extensions ;
    865 ;;;;;;;;;;;;;;;;;;;;;;
    866 
    867 ; If you wish to have an extension loaded automatically, use the following
    868 ; syntax:
    869     extension=ldap.so                                     #新添加模块
    870 ;
    871 ;   extension=modulename.extension
    872 ;
    873 ; For example, on Windows:
    874 ;
    875 ;   extension=msql.dll
    876 ;
    877 ; ... or under UNIX:
    878 ;
    879 ;   extension=msql.so
    880 ;

[root@nms php-7.1.7]# service httpd restart           #重启httpd                                                      
restart apache...  done

　4、http://192.168.0.198/zabbix/setup.php再次进入前端安装

　　发现PHP LDAP模块 OK!!

5、至此zabbix 前面安装 “Check of pre-requisites”全部OK