What are the common coding errors in web development

This article mainly introduces "what are the common coding errors in web development". In the daily operation, I believe that many people have doubts about the common coding errors in web development. The editor consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful to answer the doubts about "what are the common coding errors in web development?" Next, please follow the editor to study!

1. Non-descriptive naming of variables

Good variable names are very important and cannot be overemphasized. In many cases, you are not the only project developer, other developers also need to know the code you write.

Choosing a good name takes time, but it can save more time.

two。 Magic numbers and strings

Then, for the non-descriptive naming of the variable above, skip to the next item, which is about not assigning a value to the variable, also known as a magic number or magic string.

Wikipedia definition:

Magic numbers are unique values, have inexplicable meaning and occur many times, and can and should be replaced by named constants.

Take a look at the following code snippet:

For ($I = 1; $I