PHP安装：

wget http://cn2.php.net/distributions/php-5.3.28.tar.gz
tar zxf php-5.3.28.tar.gz
cd php-5.3.28
./configure --prefix=/usr/local/php --with-apxs2=/usr/local/apache2/bin/apxs --with-

config-file-path=/usr/local/php/etc --with-mysql=/usr/local/mysql --with-libxml-dir

--with-gd --with-jpeg-dir --with-png-dir --with-freetype-dir --with-iconv-dir --with-

zlib-dir --with-bz2 --with-openssl --with-mcrypt --enable-soap --enable-gd-native-ttf

--enable-mbstring --enable-sockets --enable-exif --disable-ipv6

make && make install

报错一：configure: error: xml2-config not found. Please check your libxml2 installation.

原因：缺少libxm文件

解决方法：yum -y install libxml2*

【转载】重装mysql+apache+php,configure php的时候得到错误信息

shell#./configure --with-mysql=/usr/lib/mysql--with-apxs2=/usr/local/apache/bin/apxs--prefix=/usr/local/php
configure: error: xml2-config notfound. Please check your libxml2 installation.
错误原因，xml2-config这个文件没找到。
／＊原因可能出在我这次安装redhat，有很多东西没选上，所以出此问题。＊／
根据错误提示，安装libxml2。RHEL_5.2的安装光盘上提供了很多rpm包，我的是dvd光盘，位置在/media/RHEL_5.2i386 DVD/Server，
cd /media/RHEL_5.2 i386 DVD/Server
ls *libxml*

[root@localhost Server]# ls *libxml*
libxml2-2.6.26-2.1.2.1.i386.rpmlibxml2-python-2.6.26-2.1.2.1.i386.rpm
libxml2-devel-2.6.26-2.1.2.1.i386.rpmperl-libxml-perl-0.08-1.2.1.noarch.rpm
[root@localhost Server]# rpm -ivhlibxml2-python-2.6.26-2.1.2.1.i386.rpm
warning:libxml2-python-2.6.26-2.1.2.1.i386.rpm: Header V3DSA signature: NOKEY, key ID 37017186
Preparing...########################################### [100%]
packagelibxml2-python-2.6.26-2.1.2.1 is already installed/*提示我已经安装过了＊／
[root@localhost Server]# rpm -ivhlibxml2-devel-2.6.26-2.1.2.1.i386.rpm
warning:libxml2-devel-2.6.26-2.1.2.1.i386.rpm: Header V3DSA signature: NOKEY, key ID 37017186
error: Failed dependencies:
zlib-devel is needed bylibxml2-devel-2.6.26-2.1.2.1.i386
[root@localhost Server]# ls *zlib-devel*
zlib-devel-1.2.3-3.i386.rpm
[root@localhost Server]# rpm -ivh zlib-devel-1.2.3-3.i386.rpm
warning:zlib-devel-1.2.3-3.i386.rpm: Header V3 DSAsignature: NOKEY, key ID 37017186
Preparing...########################################### [100%]
1:zlib-devel########################################### [100%]
[root@localhost Server]# rpm -ivhlibxml2-devel-2.6.26-2.1.2.1.i386.rpm
warning:libxml2-devel-2.6.26-2.1.2.1.i386.rpm: Header V3DSA signature: NOKEY, key ID 37017186
Preparing...########################################### [100%]
1:libxml2-devel########################################### [100%]
[root@localhost Server]#

好了，没有问题了，
make
make install
安装完成

报错二：configure: error: Cannot find OpenSSL's <evp.h>

因为缺少openssl-dev 文件

yum -y install openssl-dev

报错三：configure: error: Please reinstall the BZip2 distribution

缺少安装bzip2或者bzip2-devel

查看哪些软件已安装：rpm -qa，后接可指定查找的软件

yum -y install bzip2-devel

报错四：configure: error: jpeglib.h not found.

缺少libjpeg库文件

yum install libpng.x86_64 freetype.x86_64 libpng-devel.x86_64 freetype-devel.x86_64 -y

yum install -y libjpeg.x86_64 libjpeg-devel.x86_64

报错五：onfigure: error: mcrypt.h not found. Please reinstall libmcrypt.

libmcrypt库没有安装

【转载】今天在编译php的时候，出现如下错误php安装出错：configure: error: mcrypt.h not found. Please reinstall libmcrypt.，意思是，没有查找到mcrytp.h,需要安装libcrytp,在下面的地址下载libmarypt:
wget ftp://mcrypt.hellug.gr/pub/crypto/mcrypt/attic/libmcrypt/libmcrypt-2.5.7.tar.gz

安装：
66 tar -zxvf libmcrypt-2.5.7.tar.gz
67 cd libmcrypt-2.5.7
68 mkdir -p /usr/local/libmcrytp
69 ./configure prefix=/usr/local/libmcrytp/
70 make
71 make install

==========================================================

如果以上方法仍然不能安装，请参考：

rpm -ivh "http://www.lishiming.net/data/p_w_upload/forum/month_1211/epel-release-6-7.noarch.rpm"
yum install -y libmcrypt-devel
因为centos6.x 默认的yum源没有libmcrypt-devel 这个包，只能借助第三方yum源。

问题6：Thank you for using PHP.

Notice: Following unknown configure options were used:

--enable-gd-native-tff

Check './configure --help' for available options

原因PHP编译完成，但是提示--enable-gd-native-tff选项是无效的，可以不予理会

通过./configure --help |grep *gd-native*查看该选项意思