因为调试一个老程序，不得不降级。
实证：
1. 适用于php-5.2.17，但是因为http2.4.*不再支持php5.2.*，需要将Apache降级到 httpd-2.2.31。
2. 适用于php-5.3.*
下载：http://museum.php.net/php5/
编译安装php-5.2.17：
wget http://museum.php.net/php5/php-5.2.17.tar.gz && tar zxvf php-5.2.17.tar.gz && cd php-5.2.17 ./configure --prefix=/usr/local/php --with-config-file-path=/usr/local/php/etc --with-apxs2=/usr/local/apache2/bin/apxs make make install
编译安装php-5.3.3：
wget http://museum.php.net/php5/php-5.3.3.tar.gz && tar zxvf php-5.3.3.tar.gz && cd php-5.3.3 ./configure --prefix=/usr/local/php --with-config-file-path=/usr/local/php/etc --with-apxs2=/usr/local/apache2/bin/apxs make ZEND_EXTRA_LIBS='-liconv' make install
编译安装php-5.3.29：
wget http://museum.php.net/php5/php-5.3.29.tar.gz && tar zxvf php-5.3.29.tar.gz && cd php-5.3.29 ./configure --prefix=/usr/local/php --with-config-file-path=/usr/local/php/etc --with-apxs2=/usr/local/apache2/bin/apxs make ZEND_EXTRA_LIBS='-liconv' make install
报错1：
make时报错：
...
/root/php-5.3.3/ext/dom/node.c: In function ‘dom_canonicalization’:
/root/php-5.3.3/ext/dom/node.c:1903:21: error: dereferencing pointer to incomplete type
ret = buf->buffer->use;
^
In file included from /root/php-5.3.3/main/php.h:38:0,
from /root/php-5.3.3/ext/dom/node.c:26:
/root/php-5.3.3/ext/dom/node.c:1905:40: error: dereferencing pointer to incomplete type
RETVAL_STRINGL((char *) buf->buffer->content, ret, 1);
^
/root/php-5.3.3/Zend/zend_API.h:545:20: note: in definition of macro ‘ZVAL_STRINGL’
const char *__s=(s); int __l=l; \
^
/root/php-5.3.3/ext/dom/node.c:1905:5: note: in expansion of macro ‘RETVAL_STRINGL’
RETVAL_STRINGL((char *) buf->buffer->content, ret, 1);
^
make: *** [ext/dom/node.lo] Error 1
参考：http://blog.csdn.net/moqiang02/article/details/19699557
有一个补丁可以解决问题：
cd /root/php-5.3.3/ curl -o php-5.x.x.patch https://mail.gnome.org/archives/xml/2012-August/txtbgxGXAvz4N.txt patch -p0 -b < php-5.x.x.patch
输出：
patching file ext/dom/node.c Hunk #1 succeeded at 1900 (offset 5 lines). patching file ext/dom/documenttype.c patching file ext/simplexml/simplexml.c Hunk #1 succeeded at 1385 (offset -32 lines).
然后重新make。
报错2：
make时报错：
... ext/iconv/iconv.o: In function `php_iconv_stream_filter_dtor': /root/php-5.3.3/ext/iconv/iconv.c:2440: undefined reference to `libiconv_close' ext/iconv/iconv.o: In function `_php_iconv_appendl': /root/php-5.3.3/ext/iconv/iconv.c:337: undefined reference to `libiconv' /root/php-5.3.3/ext/iconv/iconv.c:374: undefined reference to `libiconv' ... collect2: error: ld returned 1 exit status
参考：http://blog.csdn.net/21aspnet/article/details/6925644
编辑 Makefile ，在 81 行末尾添加 -liconv ：
EXTRA_LIBS = -lcrypt -lresolv -lcrypt -lrt -lm -ldl -lnsl -lxml2 -lz -llzma -lm -ldl -lxml2 -lz -llzma -lm -ldl -lxml2 -lz -llzma -lm -ldl -lcrypt -lxml2 -lz -llzma -lm -ldl -lxml2 -lz -llzma -lm -ldl -lxml2 -lz -llzma -lm -ldl -lcrypt -liconv
然后重新make，顺利通过； make install，顺利编译完成。
创建软连接：
ln -s /usr/local/php/bin/php /usr/local/bin/ ln -s /usr/local/php/bin/phpize /usr/local/bin/ ln -s /usr/local/php/bin/php-config /usr/local/bin/
查看版本：
php -v
输出：
PHP 5.2.17 (cli) (built: Jan 8 2017 04:31:43) Copyright (c) 1997-2010 The PHP Group Zend Engine v2.2.0, Copyright (c) 1998-2010 Zend Technologies