[PHP-INSTALL] How to create php extensions with phpize

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? Tha

[PHP-INSTALL] How to get help from you

I don't konw how to make my question be solve