The following are some ways to identify errors in a program:
When you run a program, any mistakes may result in various errors, such as syntax errors, parse errors, fatal errors, warnings, and notices, which prevent the program from executing.
The error message shows the error line number and file name.
Enabling error reporting in the program's code displays errors, specifies the type, and suggests the correct parsing error.
The developer saves the errors in the log file or uses it to correct them at the right time.
It prevents the errors from being shown to the user, which can have a negative impact. The user is unaware of the mistakes on the website. This method ensures the website's safety.
When you write a program, debugging tools automatically identify the errors.
It provides the test and validates the data so that you can easily identify the errors before executing the data.
When you write a program, you should check small parts of it one by one. This way, you can review the entire program and easily identify any errors.
When you validate the program before executing the code, you will know whether your data is valid. It also checks if the user data is in the correct format.
When you use the try-catch block tools in the program, it first checks for errors in the try block.
If errors occur, the try section throws them, while the catch block catches the errors and displays the corresponding error message.