PHP不是识别OneThink的验证码-解决翻案
环境：centos6.4（64位） 、Apache/2.2.24 (Unix) 、 PHP/5.4.21
问题：新项目（用的OneThink为框架）验证码无法显示，提示缺少freetype.
解决方案：重新安装php
具体步骤如下：
PHP安装
要考虑安装SVN所需的东西（Apache），OneThink的东西
1.安装依赖项 yum install perl yum install libxml2 yum install libxml2-devel yum install libjpeg libjpeg-devel yum install libpng-devel yum install freetype-devel yum install gd-devel yum install curl curl-devel 2.配置源码 cd ~/src //转到存放源代码压缩包的目录中。 tar zxvf php-5.3.13.tar.gz cd php-5.3.13/ ./configure --prefix=/usr/local/php5 --with-apxs2=/usr/local/apache2/bin/apxs --with-mysql=/usr/local/mysql --with-gd --with-zlib --with-jpeg-dir=/usr/lib64/ --with-png-dir=/usr/lib64/ --with-freetype-dir=/usr/lib64/ --enable-gd-native-ttf --enable-sockets --with-iconv --enable-mbstring --with-config-file-path=/usr/local/php5/etc --enable-zlib=/usr/lib64/ --enable-zip --with-curl --with-xpm-dir=/usr/lib64/make make install cp php.ini-production /usr/local/php5/etc/php.ini 3.重启Apache服务器，使用phpinfo查看php是否安装成功。 service apache2 restart 在默认的网站目录中，新建php文件，然后用web browser 或者wget测试 (如果curl没有开启，请检查php.ini 文件是否存在 extension_dir = "/usr/local/php5/lib/php/extensions/no-debug-non-zts-20090626/" extension = curl.so 不存添加即可)
编译时会出现如下错误：
checking for jpeg_read_header in -ljpeg... yesIf configure fails try --with-vpx-dir=<dir>checking for png_write_image in -lpng... yesconfigure: error: libXpm.(a|so) not found.</dir>
原因：
configure一般的搜索编译路径为/usr/lib/下,因为php默认就在/usr/lib/下找相关库文件 （摘自网上）
解决方案：
主机是x64平台，
ln -s /usr/lib64/libXpm.so* /usr/lib/
并且编译时指定， --with-xpm-dir=/usr/lib64/x11
./configure --prefix=/usr/local/php5 --with-apxs2=/usr/local/apache2/bin/apxs --with-mysql=/usr/local/mysql --with-gd --with-zlib --with-jpeg-dir=/usr/lib64/ --with-png-dir=/usr/lib64/ --with-freetype-dir=/usr/lib64/ --enable-gd-native-ttf --enable-sockets --with-iconv --enable-mbstring --with-config-file-path=/usr/local/php5/etc --enable-zlib=/usr/lib64/ --enable-zip --with-curl --with-xpm-dir=/usr/lib64/x11
之后就不会出现错误，运行make和make install 即可安装，如果是重新安装不许要配置php.ini的话，可以不用执行
cp php.ini-production /usr/local/php5/etc/php .ini
昨天晚上折腾了好久，终于折腾好了，之后OneThink的验证码就可以正常显示了。
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