Q:
Which one of the following functions will you use to check that the class exists before you work with it?
belongs to collection: OBJECT TOOLS AND VARIABLES IN PHP MCQ
OBJECT TOOLS AND VARIABLES IN PHP MCQ
- How resources are created in PHP?
- How many basic data types are offered by PHP?
- Floatval ( ) function will convert your argument in
- Which of following type conversion behavior is offered by PHP?
- Which one is not a data type in PHP?
- How many different ways are offered by PHP to manipulate a data type?
- Which data type is not valid in PHP for type casting?
- For checking a data type, PHP offers a function called
- Ord ( ) function is used convert a
- Which data type in PHP offers special variables that hold references of resources that are external to PHP?
- Conversion functions, Type casts and what is third way to manipulate a data type?
- Which function is used to convert a float type into integers?
- Is_unicode (arg) function returns true when
- Chr ( ) function changes a string into a/an
- When integer value overflows, they become
- In Boolean context unbound variable is considered as
- Variables in PHP are
- Which function is used for determining location of syntax error?
- Missing of semicolon, No dollar signs are example of
- Server or host not found/ Page cannot be displayed is a
- NAN problem is a
- Failing to close off a quoted string can cause
- Perl is a
- All installation and rendering problems, failures and errors are called as
- Same name with different capitalization in PHP variables results the
- Which are problems that is not reported as an error on page by PHP?
- PHP uses arrays while Perl works on
- An unbound variable are interpreted as 0 in a
- PHP is different from other languages because variables do not have to be
- A mathematical error NAN stands for
- Errors that are caused by mistyped or syntactically incorrect PHP code, is called as
- Which path is correct for linking a php file to a web server?
- For accessing global variables anywhere from script, PHP uses
- Which method passes arguments from one page to next as a part of uniform resource indicator?
- There are how many main methods for passing information between web pages and server
- $GLOBALS, $_SERVER, $_REQUEST, $_POST, $_GET, $_FILES, $_COOKIE, $_SESSION all are example of
- Which method is not suitable for logins because it stores data in client browsers memory?
- Every Get method submission is recorded in the
- In Post method results at a given moment cannot be
- Which method has much larger limit on amount of data that can be passed to web server?
- For adding no idempotent information into a database which method is more preferable?
- PHP automatically assigns variables to next page when you submit data using
- In HTML forms if you want to display it with prefilled inputs than use
- In PHP6 Register_ globals are
- PHP stores all global variables in an array called
- Which method is more secure than other?
- Superglobal array was introduced in
- Get method assigns its data to web server that\'s why
- Browsers exhibit different behaviors when user navigates their back and forward buttons, it\'s a disadvantage of?
- HTTP protocol is stateless because a plain HTML page is not capable of
- Which statement is correct for using Get method?
- Which method is used for generating complex URL strings for dynamic web pages?
- By default all GET, Post, Cookie, Environment, and Server variables are directly accessible in PHP because it is defined in
- PHP is sometimes
- Constants in PHP are not denoted by $ sign but they are differentiated by
- All variables in PHP are denoted by
- Every statement and expression in PHP is terminated by
- Word echo used interchangeably as
- Although PHP is embedded with HTML but PHP syntax only applies in
- These # MY PHP File? and // My PHP File? statements are example of
- Performing automatic type variable conversion is an example of
- This statement /* My PHP File */ is an example of
- All variables in PHP are assigned with the
- Get, Post, Cookies and Sessions all are examples of
- A package is a set of related _________
- Till which version of PHP, developers were forced to name their files in a global context?
- Which of the following can you place inside a namespace?
- Which one of the following is the correct way of declaring a namespace?
- Which symbol is used to declare nested namespaces?
- Which keyword can be used to fix the above error?
- If I already had a Debug class in the main namespace. What will be the output of the following code?
- Which one of the following statements is true for include_once() and require_once()?
- Which one of the following statements is true for require() and require_once()?
- Which function was introduced to help automate the inclusion of class files?
- How many times can you define __autoload in a process?
- Which one of the following functions will you use to check that the class exists before you work with it?
- Which one of the following will you use to check the class of an object?
- PHP 4 did not support instanceof. Instead, which function did it provide?
- You use the get_class_methods() function to return the names of all the methods in the class. Which function will you use to print it on the screen?
- If you call a method and it doesn’t exist it’ll cause a problem. To check the method which function will you use?
- What will be the output if a protected method is given as argument to the function method_exist()?
- Which one of the following function should I use to find the parent class of a class?
- Which class accepts a class name or an object reference and returns an array of interface name?
- Object-oriented code tries to minimize dependencies by moving responsibility for handling tasks away from ___ and toward the objects in the system
- Placing a static method for generating ___ objects in the ___ class is convenient
- The extent to which proximate procedures are related to one another is known as…
- ______ occurs when discrete parts of a system’s code are tightly bound up with one another so that a change in one part necessitates changes in the others
- ________ code makes change easier because the impact of altering an implementation will be localized to the component being altered
- Polymorphism is also known as______
- Which one of the following is known as the key to object-oriented programming ?
- Which one among the following means tight coupling ?
- UML stands for?
- In a class diagram the class is divided into three sections, what is displayed in the first section?
- ___ are used in class diagrams to describe the way in which specific elements should be used
- Which one of the following is displayed below the class name in the class diagrams?
- + is the visibility code for?
- Which relationship is illustrated by a line that begins with an unfilled diamond?
- If the diamond is filled it depicts which relationship?
- Which one of the following statements is true about sequence diagrams?
- A bidirectional relationship in class diagrams is described by________
- # is the visibility code for?
- Which one of the following is displayed in the third section of the class diagram?
- What will be the output of the following PHP code ?
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Php programming
(b).class_exists()
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