Some programs about e-commerce things, or their own hands to compare insurance. When you do it, you find a lot of places to pay attention to.
1. Grammar
If you're familiar with both, it's easier, but it's written with a faint head that often happens. Everyone knows that the Web server's error prompts are now confused.
PHP is best to add a semicolon to each sentence, even if there are some places you can not add. Note that each paragraph is annotated with one hierarchy of different loops (especially nesting).
2. Variable
Because the original program is not I wrote, so the page form, session and so on something special attention. If the previous program is not very clear, the trouble is a bit bigger.
PHP in the case of variable sensitivity, ASP is not sensitive, so it is best to develop a good habit of naming variables when possible to standardize some (their own specifications:-), ASP best use Option Explicit.
3. Page
Make a separate page of the same content that may appear on different pages, and then include it when needed, making it easy to modify. We all know that the customer's request may be the same day.
4. The most important thing is function.