如何从android更新mysql数据库

I am using php with httpost to get data from an external mysql database. But i dont know how to update the mysql database from android. How would i do this.( I have a large string array which i want to enter into a relational datbase where id= ' unique id' and indexes other table which must be created dynamically when the user installs the application).I am using php with httpost to get data from an