After PHP is compiled and installed using the source code package php-5.4.9.tar.gz, you do not need to reconfigure the dynamic module.

First confirm: When we install PHP, specify its installation directory: -- prefix =/var/lib/php5; and directory/home/guanli/php-5.4.9 is the path after We decompress .tar.gz, that is, the source code path.

For example, install the bcmath module.

# Cd/home/guanli/php-5.4.9/ext

# Cd openssl

# Mv vonfig0.m4 config. m4

# Cd-

# Cd bcmath

#/Var/lib/php5/bin/phpize

An error is prompted:
Processing ing:
PHP Api Version: 20100412
Zend Module Api No: 20100525
Zend Extension Api No: 220100525
Cannot find autoconf. Please check your autoconf installation and the $ PHP_AUTOCONF environment variable. Then, rerun this script.

# Yum install autoconf

#/Var/lib/php5/bin/phpize

#./Configure -- with-php-config =/var/lib/php5/bin/php-config

# Make

# Make test

# Make install

After the execution, the system will automatically prompt us to add the bcmath. so module to the path:/var/lib/php5/lib/php/extensions/no-debug-non-zts-20100525 below

Next, set the extension directory in php. ini:

If the location of the configuration file is not specified during PHP compilation, the default php. ini should be placed under/var/lib/php5/lib to be loaded. It has been mentioned elsewhere.

We found; extension_dir = "./", removed the preceding comment, and changed it:

Extension_dir = "/var/lib/php5/lib/php/extensions/no-debug-non-zts-20100525"

Add extension module reference again

Extension = bcmath. so

At this point, restart the httpd service and verify through phpinfo () that the bcmath module has been successfully loaded.