Debugging in PHP

1.		Which of the following is a commonly used method for debugging PHP code?

echo statements

print_r statements

var_dump statements

All of the above

2.		What is the purpose of the function ini_get() in PHP?

To set the value of a configuration option

To turn off error reporting

To get the value of a configuration option

To stop the execution of the script on an error

3.		What is the purpose of the error_reporting() function in PHP?

To turn off error reporting

To set the level of error reporting

To display all errors

To stop the execution of the script on an error

4.		What is the purpose of the function error_log() in PHP?

To display errors in the browser console

To log errors to a file or database

To stop the execution of the script on an error

None of the above

5.		What is the purpose of the function set_time_limit() in PHP?

To turn off error reporting

To set the maximum execution time for a script

To display all errors

To stop the execution of the script on an error

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

There is no difference, they are synonyms

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

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

None of the above

7.		What does the function debug_print_backtrace() do in PHP?

Displays the current stack trace

Displays the current error message

Displays a list of all variables in the current scope

None of the above

8.		What does the function error_get_last() do in PHP?

Returns the last error that occurred in the script

Returns the last warning that occurred in the script

Returns the last notice that occurred in the script

None of the above

9.		What is the purpose of the function ini_set() in PHP?

To set the value of a configuration option

To turn off error reporting

To display all errors

To stop the execution of the script on an error

10.		What is the purpose of the function error_reporting() in PHP?

To turn off error reporting

To set the level of error reporting

To display all errors

To log errors to a file or database