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The practice of separating the user from the true inner workings of an application through well-known interfaces is known as _____

1. Polymorphism
2. Inheritance
3. Encapsulation
4. Abstraction

✅ Correct Answer: 3

Which of the following term originates from the Greek language that means “having multiple forms,” defines OOP’s ability to redefine, a class’s characteristics?

1. Abstraction
2. Polymorphism
3. Inheritance
4. Differential

✅ Correct Answer: 2

The practice of creating objects based on predefined classes is often referred to as _____

1. class creation
2. object creation
3. object instantiation
4. class instantiation

✅ Correct Answer: 4

Which one of the following property scopes is not supported by PHP?

1. friendly
2. final
3. public
4. static

✅ Correct Answer: 1

Which one of the following can be used to instantiate an object in PHP assuming class name to be Foo?

1. $obj = new $foo;
2. $obj = new foo;
3. $obj = new foo ();
4. obj = new foo ();

✅ Correct Answer: 3

Which one of the following is the right way to define a constant?

1. constant PI = “3.1415”;
2. const $PI = “3.1415”;
3. constant PI = ‘3.1415’;
4. const PI = ‘3.1415’;

✅ Correct Answer: 4

Which one of the following is the right way to call a class constant,given that the class is mathFunction?

1. echo PI;
2. echo mathFunction->PI;
3. echo mathFunction::PI;
4. echo mathFunction=PI;

✅ Correct Answer: 3

Which one of the following is the right way to invoke a method?

1. $object->methodName();
2. object->methodName();
3. object::methodName();
4. $object::methodName();

✅ Correct Answer: 1

Which method scope prevents a method from being overridden by a subclass?

1. Abstract
2. Protected
3. Final
4. Static

✅ Correct Answer: 3

PHP recognizes constructors by the name _____

1. classname()
2. _construct()
3. function _construct()
4. function __construct()

✅ Correct Answer: 4

Which version of PHP introduced the instanceof keyword?

1. PHP 4
2. PHP 5
3. PHP 5.3
4. PHP 6

✅ Correct Answer: 2

Which one of the following functions is used to determine whether a class exists?

1. exist()
2. exist_class()
3. class_exist()
4. __exist()

✅ Correct Answer: 3

Which one of the following functions is used to determine object type?

1. obj_type()
2. type()
3. is_a()
4. is_obj()

✅ Correct Answer: 3

Which one of the following keyword is used to inherit our subclass into a superclass?

1. extends
2. implements
3. inherit
4. include

✅ Correct Answer: 1

Which keyword is used to refer to properties or methods within the class itself?

1. private
2. public
3. protected
4. $this

✅ Correct Answer: 4

Which keyword allows class members (methods and properties) to be used without needing to instantiate a new instance of the class?

1. protected
2. final
3. static
4. private

✅ Correct Answer: 3

Which version of PHP introduced the advanced concepts of OOP?

1. PHP 4
2. PHP 5
3. PHP 5.3
4. PHP 6

✅ Correct Answer: 2

Which one of the following is the right way to clone an object?

1. clone(targetObject);
2. destinationObject = clone targetObject;
3. destinationObject = _clone(targetObject);
4. destinationObject = clone(targetObject);

✅ Correct Answer: 2

If one intends to create a model that will be assumed by a number of closely related objects,which class must be used?

1. Normal class
2. Static class
3. Abstract class
4. Interface

✅ Correct Answer: 3

If your object must inherit behavior from a number of sources you must use a/an

1. Interface
2. Object
3. Abstract class
4. Static class

✅ Correct Answer: 1

Which method is used to tweak an object’s cloning behavior?

1. clone()
2. __clone()
3. _clone
4. object_clone()

✅ Correct Answer: 2

Which feature allows us to call more than one method or function of the class in single instruction?

1. Typecasting
2. Method Including
3. Method adding
4. Method chaining

✅ Correct Answer: 4

Which magic method is used to implement overloading in PHP?

1. __call
2. __invoke
3. __wakeup
4. _unset

✅ Correct Answer: 1

How many error levels are available in PHP?

1. 14
2. 15
3. 16
4. 17

✅ Correct Answer: 3

What is the description of Error level E_ERROR?

1. Fatal run-time error
2. Near-fatal error
3. Compile-time error
4. Fatal Compile-time error

✅ Correct Answer: 1

Which version of PHP introduced E_STRICT Error level?

1. PHP 4
2. PHP 5
3. PHP 5.2
4. PHP 5.3

✅ Correct Answer: 2

Which character does the error_reporting directive use to represent the logical operator NOT?

1. /
2. !
3. ~
4. ^

✅ Correct Answer: 3

Say you want to report error concerned about fatal run-time,fatal compile-time error and core error which statement would you use?

✅ Correct Answer: 4

Which version introduced the function error_get_last()?

1. PHP 4
2. PHP 5
3. PHP 5.2
4. PHP 5.3

✅ Correct Answer: 3

Which of the following statements causes PHP to disregard repeated error messages that occur within the same file and on the same line?

1. ignore_repeated_errors
2. ignore_repeat_error
3. repeatedly_ignore_error
4. repeated_error_ignore

✅ Correct Answer: 1

Which function initializes the constants necessary for using the openlog(),clodelog(),and syslog() functions?

1. define_variable()
2. define_log_variable()
3. log_variable()
4. define_syslog_variable()

✅ Correct Answer: 4

Which logging option’s description is if an error occurs when writing to the syslog, send output to the system console?

1. LOG_CONS
2. LOG_NDELAY
3. LOG_ODELAY
4. LOG_PERROR

✅ Correct Answer: 1

Which function is responsible for sending a custom message to the system log?

1. systemlog()
2. syslog()
3. log_system()
4. sys_log()

✅ Correct Answer: 2

Which version of PHP was added with Exception handling?

1. PHP 4
2. PHP 5
3. PHP 5.3
4. PHP 6

✅ Correct Answer: 2

How many methods are available for the exception class?

1. 5
2. 6
3. 7
4. 8

✅ Correct Answer: 3

Which version added the method getPrevious()?

1. PHP 4
2. PHP 5
3. PHP 5.1
4. PHP 5.3

✅ Correct Answer: 4

Which of the following statements invoke the exception class?

1. throws new Exception();
2. throw new Exception();
3. new Exception();
4. new throws Exception();

✅ Correct Answer: 2

Which one of the following is the right description for the method getMessage()?

1. Returns the message if it is passed to the constructor
2. Returns the message if it is passed to the class
3. Returns the message if it is passed to the file
4. Returns the message if it is passed to the object

✅ Correct Answer: 1

You can extend the exception base class,but you cannot override any of the preceding methods because the are declared as_________

1. protected
2. final
3. static
4. private

✅ Correct Answer: 2

What does SPL stand for?

1. Standard PHP Library
2. Source PHP Library
3. Standard PHP List
4. Source PHP List

✅ Correct Answer: 1

How many predefined exceptions does SPL provide access to?

1. 13
2. 14
3. 15
4. 16

✅ Correct Answer: 1

How many types of filtering are present in PHP?

1. 3
2. 2
3. 4
4. None

✅ Correct Answer: 2

Which one of the following filter is used to filter several variables with the same or different filters?

1. filter_var_array()
2. filter_var()
3. filter_input
4. filter_input_array

✅ Correct Answer: 1

Which one of the following does not describe a validating filter?

1. Are used to allow or disallow specific characters in a string
2. Are used to validate user input
3. Strict format rules
4. Returns the expected type on success or FALSE on failure

✅ Correct Answer: 1

Which one of the following filter checks if the variable of the specified type exists?

1. filter_has_var
2. filter_var
3. filter_id
4. filter_var_array

✅ Correct Answer: 1

Which one of the following regular expression matches any string containing zero or one p?

1. p+
2. p*
3. P?
4. p#

✅ Correct Answer: 3

[:alpha:] can also be specified as ________

1. [A-Za-z0-9]
2. [A-za-z]
3. [A-z]
4. [a-z]

✅ Correct Answer: 2

How many functions does PHP offer for searching strings using POSIX style regular expression?

1. 7
2. 8
3. 9
4. 10

✅ Correct Answer: 1

POSIX implementation was deprecated in which version of PHP?

1. PHP 4
2. PHP 5
3. PHP 5.2
4. PHP 5.3

✅ Correct Answer: 4

POSIX stands for _________

1. Portable Operating System Interface for Unix
2. Portable Operating System Interface for Linux
3. Portative Operating System Interface for Unix
4. Portative Operating System Interface for Linux

✅ Correct Answer: 1

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