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Debugging in PHP

Debugging in PHP - Important Points

6. What is the difference between the die() and exit() functions in PHP?

A. There is no difference, they are synonyms

B. die() displays an error message and exits the script, exit() does not display an error message

C. exit() displays an error message and exits the script, die() does not display an error message

D. None of the above

Discuss Work Space

Answer: option b

Explanation:

The die() and exit() functions are synonyms, but die() displays an error message and exits the script, while exit() does not display an error message.
7. What does the function error_get_last() do in PHP?

A. Returns the last error that occurred in the script

B. Returns the last warning that occurred in the script

C. Returns the last notice that occurred in the script

D. None of the above

Discuss Work Space

Answer: option a

Explanation:

The error_get_last() function returns the last error that occurred in the script.
8. What is the purpose of the function error_log() in PHP?

A. To display errors in the browser console

B. To log errors to a file or database

C. To stop the execution of the script on an error

D. None of the above

Discuss Work Space

Answer: option b

Explanation:

The error_log() function is used to log errors to a file or database.
9. What is the purpose of the function set_error_handler() in PHP?

A. To turn off error reporting

B. To set the level of error reporting

C. To handle errors with a custom function

D. To stop the execution of the script on an error

Discuss Work Space

Answer: option c

Explanation:

The set_error_handler() function is used to handle errors with a custom function.
10. What does the function trigger_error() do in PHP?

A. Triggers a runtime error

B. Triggers a syntax error

C. Triggers a logical error

D. None of the above

Discuss Work Space

Answer: option a

Explanation:

The trigger_error() function is used to trigger a runtime error in PHP.
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