PHP 5 MCQs (Chapterwise Multiple Choice Questions)

Which of the following is the correct magical PHP constant that is used to determine the current line number of a file?

LINE_ _NUMBER

_ _LINE_ _

_ _CURRENT_ _LINE_ _

_LINE_

Answer & Explanation

Correct Answer: _ _LINE_ _

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What is the function to report errors from mysqli functions or queries?

mysqlireport();

mysqli_report();

mysql_sql_exception

mysql_generate_report();

Answer & Explanation

Correct Answer: mysqli_report();

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How do you make PHP use a class file without having to require or include it manually?

Define $_MAP superglobal

Set default_lib_path variable in php.ini

Use set_class_handler($class_handler) function

Define __autoload($class) magic function

Answer & Explanation

Correct Answer: Define __autoload($class) magic function

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$var =

FATAL ERROR MESSAGE

A text with a string.

WARNING ERROR MESSAGE

Define __autoload($class) magic function

Answer & Explanation

Correct Answer: Define __autoload($class) magic function

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Considerer this code : $var = 1; function &blah() { global $var; $var++; return $var; } $num = &blah(); $num = &blah(); blah(); What is the value of $num ?

4

3

Will return an error.

2

Answer & Explanation

Correct Answer: 4

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What prefix prevents child classes from overriding a method

private

protected static

final

private static

Answer & Explanation

Correct Answer: final

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How do you get header information from a URL?

get_headers()

None of these

get_header_info()

get_header()

Answer & Explanation

Correct Answer: get_headers()

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The ______ keyword is used to indicate an incomplete class or method, which must be further extended and/or implemented in order to be used.

abstract

incomplete

implements

protected

Answer & Explanation

Correct Answer: abstract

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In relation to PHP 7.1 method overloading, which of the following methods is triggered when inaccessible methods are invoked in an object context?

__call()

__set()

__callstaticO

None of the above.

Answer & Explanation

Correct Answer: __call()

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You start a transaction with PDO::beginTransaction(). How do you roll back a transaction?

PDO::stopTransaction()

PDO::rollbackTransaction()

PDO::rollBack()

PDO::abortTransaction()

Answer & Explanation

Correct Answer: PDO::rollBack()

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PHP 5 Quick Quiz

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