The steps are as follows:
1. Go to the corresponding extension directory
# cd /usr/local/src/php-5.2.12/ext/curl
2. Call phpize The program generates a compilation configuration file
# /usr/local/php5/bin/phpize
3. Call configure to generate a Makefile, then call make to compile and make install to install
# ./configure -with-curl=/usr/local/curl -with-php-config=/usr/local/php5/bin/php-config# make# make install
4. Modify php configuration File
; modify the extension library directory extension_dir = "/usr/local/php5/lib/php/extensions/no-debug-non-zts-20060613/"; add curl extension extension = curl.so
5. Just restart Apache.