Im using AJAX to make a php file get data from a MySQL database and populating it in a drop down depending on the users first choice drop down. Everything is working fine and the second drop down is populated correctly. Im using AJAX to make a php file get data from
阅读背景：
当使用AJAX获取PHP文件以从MySQL数据库检索数据时，下拉表格消失
来源：互联网
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