linux​/php

# export PATH=/usr/bin:${PATH}
# cd /usr/local/arch
# wget http://www.php.net/get/php-4.3.9.tar.gz/from/a/mirror
# cd ../src
# tar xvzf ../arch/php-4.3.9.tar.gz
# cd php-4.3.9
# ./configure --with-apxs2=/usr/local/apache/bin/apxs \
>             --with-mysql=/usr/local/mysql \
>             --with-config-file-path=/usr/local/lib \
>             --with-system-regex \
>             --enable-zend-multibyte \
>             --enable-mbstring=all \
>             --enable-mbregex \
>             --with-curl-dir=/usr/bin/curl \
>             --with-kerberos \
>             --with-openssl=/usr/local/openssl \
>             --enable-magic-quotes \
>             --with-pear \
>             --enable-safe-mode \
>             --enable-sockets \
>             --enable-trans-sid \
>             --enable-track-vars \
>             --with-gd \
>             --with-jpeg \
>             --enable-exif \
>             --with-png \
>             --with-zlib
# make
# make install

# cp php.ini-dist /usr/local/bin/php.ini
# vi /usr/local/bin/php.ini

mbstring.language = Japanese
mbstring.internal_encoding = EUC-JP
mbstring.encoding_translation = On
mysql.allow_persistent = On
mysql.max_persistent = 30
mysql.max_links = -1
mysql.default_port =
mysql.default_socket = /tmp/mysql.sock
mysql.default_host =
mysql.default_user =
mysql.default_password =
mysql.connect_timeout = 60
mysql.trace_mode = Off

# vi /usr/local/apache/conf/httpd.conf

LoadModule php4_module        modules/libphp4.so
AddType application/x-httpd-php .php
AddType application/x-httpd-php-source .phps

# vi /usr/local/apache/htdocs/test.php

<? echo phpinfo(); ?>

# mysql.allow_persistentのTips

httpのMaxClients × MySQLのスキーマ数(ユーザー数)