Similarities and differences between PHP4 and PHP5 configuration _php

During the configuration of PhP4 or PHP5, the steps for php4,5 configuration are roughly the same, but there are some differences in configuration content. In Linux and other environments to compile, in general, as long as the compilation of the correct options, the configuration is correct, in Windows configuration you need to pay attention to the following different points:
1. Php4ts.dll and Php5ts.dll
This file will be copied to the Apache Bin directory or under the system directory.
2. httpd.conf File Loading module
Examples are as follows:
# for PHP4 + apache1.x.xx
LoadModule Php4_module D:/www/webserver/php4/sapi/php4apache.dll
AddType application/x-httpd-php. php

# for PHP4 + apache2.x.xx
LoadModule Php4_module D:/www/webserver/php4/sapi/php4apache2.dll
AddType application/x-httpd-php. php

# where D:/WWW/WEBSERVER/PHP4 is the directory where PHP is located.

# for PHP5 + apache1.x.xx
LoadModule Php5_module D:/www/webserver/php5/php5apache.dll
AddType application/x-httpd-php. php

# for PHP5 + apache2.x.xx
LoadModule Php5_module D:/www/webserver/php5/php5apache2.dll
AddType application/x-httpd-php. php

# where D:/WWW/WEBSERVER/PHP5 is the directory where PHP is located.

3. Different ways to load MySQL

In PhP4 and previous versions, MySQL was integrated in PHP;
In the PHP5 (including beta) version, MySQL is loaded as a module and needs to be set php.ini to load, for example
Extension_dir = "d:/www/webserver/php5/ext/"
Extension=php_mysql.dll

In addition, PHP4,PHP5 need the system directory of Libmysql.dll support, if the wrong version, even if you set the correct extension_dir and Php_mysql.dll parameters, will also cause Apache boot time prompt phpp_ Mysql.dll the error that could not be found.

You are welcome to discuss and correct me.

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