How to learn PHP within 10 days of the Nineth day

Purpose of study: matters needing attention
　　
Because I was first to learn ASP, so do PHP when you will find that many places need to adapt.
　　
1, pay attention not to miss the semicolon
2, pay attention not to miss the variable before the $
3, use the time of session to pay attention not to omit session_start ();
　　
If an error occurs, you can use the following methods:
1, if it is an error in the SQL statement, then the output of the SQL statement, note that you also want to comment on the subsequent execution of the SQL statement
2, if the variable is empty, most of it is not passed in place, output variables check, check the ID and name of the form
3, if the database connection error, check to open my SQL correctly and whether the connection statement is missing
4, pay attention to indentation, excluding the parentheses do not match the error
　　
　　　　
All right, here we are today. If you use PHP to upload files and send emails.