How to create php extensions with phpize

[email protected] (jimmy he)
Newsgroups php.install
Message-ID <[email protected]> 
Hello!
My dear!Last week,I want to make the mysql extension on php with phpize.The
mysql.so has been producted,but it can't work!
When I check the module in php,it will say 'PHP Startup: Invalid library
(maybe not a PHP library) 'mysql.so' in Unknown on line 0'.I don't know
why.can you help me?
Thank you!
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