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We will learn more about this in upcoming chapter. There may be a situation when you need to import a variable from the main program into a function, or vice versa. A recursive function is a function that calls itself again and again until a condition is satisfied. The define () function defines a constant. A - The eregi () function searches a string specified by string for a string specified by pattern, returning true if the pattern is found, and false otherwise. Tip: An argument is a value that you pass to a function, and a parameter is the variable within the function that receives the argument. Please give us a The uses of strcmp( ) function in PHP? All Rights Reserved. View Answer. b) PHP 5 How to define a function in PHP? Professionals, Teachers, Students and Kids Trivia Quizzes to test your knowledge on the subject. PHP Multiple Choice Question and Answers. define function add ( ). print sum. By default, variables declared within a function are local and they cannot be viewed or manipulated from outside of that function, as demonstrated in the example below: Similarly, if you try to access or import an outside variable inside the function, you'll get an undefined variable error, as shown in the following example: As you can see in the above examples the variable declared inside the function is not accessible from outside, likewise the variable declared outside of the function is not accessible inside of the function. It is a way to create reusable code packages that perform specific tasks and can be kept and maintained separately form main program. This set of PHP Multiple Choice Questions & Answers (MCQs) focuses on “Functions”. Which function call themselves? Recursive functions are often used to solve complex mathematical calculations, or to process deeply nested structures e.g., printing all the elements of a deeply nested array. All Rights Reserved. You can specify parameters when you define your function to accept input values at run time. Any name ending with an open and closed parenthesis is a function. Here are the collections of the 20 best MCQ questions on PHP functions includes multiple-choice questions on the fundamentals of PHP functions.It includes MCQ questions on creating a function with passing arguments by value and reference, returning values from a function, recursive functions, function arguments, variable functions, anonymous functions, and arrow functions. To call function : add ( ) add function being called sum of two no is shown sub ( ) sub function being called subtraction of two no is shown. A function in PHP which starts with __ (double underscore) is known as __________ Which one of the following is the right way of defining a function in PHP? a) I am a At least with PHP 4.2.3 on a GNU/Linux/Apache platform, get_defined_functions() returns user-defined functions as all-lower case strings regardless of how the functions are capitalized when they are defined. c) PHP 5.3 A directory of Objective Type Questions covering all the Computer Science subjects. Make an array of two entries where the 0th entry is the name of the class to be invoked ('self' and 'parent' work as well) and the 1st entry is the name of the function. This causes PHP engine to use the default value for the $size parameter which is 1.5. MySql with PHP Basic MCQ - PHP : General Knowledge Questions and Answers . We’ve used the REPLACE syntax to make sure that if an entry exists, it will be updated; otherwise, it’ll be inserted. Multiple choice questions on PHP topic Functions in PHP. In PHP there are two ways you can pass arguments to a function: by value and by reference. This accessibility is known as variable scope. Constants are much like variables, except for the following differences: A constant's value cannot be changed after it is set. Which of the following symbol is used to add multiple line comments in PHP ? an argument is a parameter is an argument. 24 B. d) Type Hinting Thus, the competitors can find the questions regarding all the topics. c) Default Function A. To practice all questions on PHP Programming, here is complete set of 1000+ Multiple Choice Questions and Answers on PHP. d) I am a Error D. No uses in PHP. d) function functionName(parameters) {function body} c) functionName(parameters) {function body} or share your feedback to help us improve. In the above example. a) Call By Value Basically, a 'callback' variable is either a string (the name of the function) or an array (0 => 'className', 1 => 'functionName'). A function is a self-contained block of code that performs a specific task. a) I am b The keyword function is always used to begin a function. Constant names do not need a leading dollar sign ($) Constants can be accessed regardless of … Passing arguments by value The argument can be any valid expression. A. What is the use of the pack() function for the tkinter widget ? inside the body declare two variable $x,$y with value=1000,500. In addition to the built-in functions, PHP also allows you to define your own functions. However, to allow a function to modify its arguments, they must be passed by reference. By default, function arguments are passed by value so that if the value of the argument within the function is changed, it does not get affected outside of the function. It compare strings excluding case C. It compare strings only Uppercase D. Local. Passing an argument by reference is done by prepending an ampersand (&) to the argument name in the function definition, as shown in the example below: However, you can declare the variables anywhere in a PHP script. 4.To destroy the widget. Participate in the Sanfoundry Certification contest to get free Certificate of Merit. $variable_name = value; C. $variable_name == value; D. $variable_name as value; 2-8. If you want your function to always be available, without including it, do this: Create your function in a PHP file. View Answer. b) Inbuilt Function But, the location of the declaration determines the extent of a variable's visibility within the PHP program i.e. d) User Defined Function Practice these MCQ questions and answers for preparation of various competitive and entrance exams. Show Answer. A. The getSum() function in following example takes two integer values as arguments, simply add them together and then display the result in the browser. That means a duplicate of the original value is passed as an argument. "; } setHeight(350); ?> A. B - The eregi () function searches throughout a string specified by pattern for a string specified by string. A markup language is a computer language that is used to apply layout and formatting conventions to a text document. Which of the following is not the scope of Variable in PHP? What will be the output of the following PHP code? 8 C. 6 D. Error: to many argument. A directory of Objective Type Questions covering all the Computer Science subjects. b) Only ii) A text has a link within it, is a hypertext. The uses of strcmp( ) function in PHP? This separation reduces the chances of variables within a function getting affected by the variables in the main program. PHP MCQ Online Questions and Answers : PHP is the popular server-side scripting language. Section 1 Section 2. PHP Quiz for freshers and interview preparations. A function can not return multiple values. b) $msg PHP has a huge collection of internal or built-in functions that you can call directly within your PHP scripts to perform a specific task, like gettype(), print_r(), var_dump, etc. It includes multiple-choice questions on PHP variables and identifiers declaration, superglobal variables, uploading files using POST in PHP, and errors occurring on it. b) Call By Reference c) Error How to define a variable in PHP? So, as present in the table, we are providing you with the number of questions asked in the interview, the time limit allocated for the exam, and the type of the Quiz. What are the General Features of PHP? like, a reusable piece or block of code that performs a specific action. There are three different ways of passing arguments to a function, arguments by value (the default), passing by reference, and default argument values. A function is a block of statements that can be used repeatedly in a program. 10. A. b) PHP interfaces to a number of relational databases such as MySQL, Oracle and Sybase. What will be the output of the following PHP code? The parameters work like placeholder variables within a function; they're replaced at run time by the values (known as argument) provided to the function at the time of invocation. It compare strings including case B. It compare strings including case B. How to define an mutator in Laravel? a) helloblabla Global. a) function {function body} Another function sub ( ), subtraction of these variable stored in $sub variable. The basic syntax of creating a custom function can be give with: The declaration of a user-defined function start with the word function, followed by the name of the function you want to create followed by parentheses i.e. Naming Conventions for PHP Variables. View Answer. A. setNameAttribute method inside model B. setNameAttribute method inside controller However, you can obtain similar results by returning an array, as demonstrated in the following example. A. function { function body } B. data type functionName (parameters) { function body } C. functionName (parameters) { function body } D. function fumctionName (parameters) { function body } Answer: (c) HyperText Markup Language Explanation: HTML is an acronym that stands for HyperText Markup Language, which is used for creating web pages and web applications. We have given the PHP Questions related to the PHP Basics, Arrays, Object Oriented PHP, HTML Forms, variables, Functions, Strings & regular Expressions, Exception Handling, and MySQL Basics. View Answer. Besides the built-in PHP functions, it is possible to create your own functions. b) data type functionName(parameters) {function body} A. Practice these MCQ questions and answers for preparation of various competitive and entrance exams. public function close() { return TRUE; } It’s used to write the session data in a database. 3. Which statement will evaluate and include a file into the location where it is called. It compare strings excluding case C. It compare strings only Uppercase D. // /* */ {{ }} {/ \} View … 2.To define a size of the widget. The following example demonstrates how a recursive function works. PHP Objective Questions and Answers. d) PHP 6 c) Default Argument Value Which of following command is used to remove the compiled class file in Laravel? Reference Function B. Recursive Function C. Function within Function Ans: B 20. 8. $variable_name = value B. Threw me for a loop. d) Will this work D. No uses in PHP. What will be the output of the following PHP code? Knowledge of PHP language is now essential for dynamic web page development. View Answer, 2. When PHP needs to save or close a session, it calls the write method. However for each parameter you specify, a corresponding argument needs to be passed to the function when it is called. d) helloblablablabla Sanfoundry Global Education & Learning Series – PHP Programming. This is the MCQ questions and answers section on "MySQL Basics" with an explanation for various interview, competitive examination and entrance test. a) Only i) Which of the following are valid function names? A function can return a value back to the script that called the function using the return statement. Type Hinting was introduced in which version of PHP? HyperText simply means "Text within Text." The search is … View Answer. A function will be executed by a call to the function. View Answer () and finally place your function's code between curly brackets {}. This keyword turns the variable into a global variable, making it visible or accessible both inside and outside the function, as show in the example below: You will learn more about visibility and access control in PHP classes and objects chapter. here is complete set of 1000+ Multiple Choice Questions and Answers on PHP, Prev - PHP Questions & Answers – Basics – 3, Next - PHP Questions & Answers – In-Built Functions in PHP, C Programming Examples on Mathematical Functions, Java Programming Examples on Mathematical Functions. View Answer. Define string in PHP: A string function in PHP is a set of characters; Explain string function in PHP: Strings are created when you declare a variable and assign string characters to it. Posted Date:-2019-06-04 02:45:20. a) PHP interfaces to the MySQL database,and you should transfer any data in Oracle or Sybase to MySQL if you want to use PHP on the data. Function names are case-insensitive. b) Error 2-7. B. Parameter passing to Functions. It is the great collection of the PHP Questions and Answers along with the explanations. b) I am bI am a Solved examples with detailed answer description, explanation are given and it would be easy to understand. c) i) and ii) 4. A. include() statement B. Inc statement C. Requrired_once Statement Ans: A 21. 1.To pack the widget on the screen. I said, "anywhere" because unlike other strict-programming-languages, in PHP you do not necessarily define function-body before calling it. Note: Be careful while creating recursive functions, because if code is written improperly it may result in an infinite loop of function calling. b) I am bI am a d) iii) and iv) 6. PHP can be used to generate dynamic web pages (i.e hundreds of different page contents using same template file) that helps us to edit, update and manange a bunch of web pages from a single master page. In this tutorial you will learn how to create your own custom functions in PHP. Which type of function call is used in line 8 in the following PHP code? 2-7. © 2011-2021 Sanfoundry. The height is : 50 C. No Output D. Error. c) Error The height is : 350 B. You can define as many parameters as you like. c) hello Is this website helpful to you? The PHP echo statement is often used to output data to the browser. As you can see the third call to customFont() doesn't include the second argument. View Answer, 9. View Answer. d) I am a Error Please check out PHP reference section for a complete list of useful PHP built-in functions. Copyright © 2021 Tutorial Republic. $variable_name = value B. Here you can access and discuss Multiple choice questions and answers for various competitive exams and interviews. … C. It indicates function declaration. A. php artisan clear-compiled B. php artisan down C. php artisan clear-class D. php artisan inspire Q5. In your php.ini file, search for the option auto_prepend_file and add your PHP file to that line, like this: `auto_prepend_file = "/path/to/my_superglobal_function.php"` Or if you write it with a non absolute path, like this: where the variable can be used or accessed. Suppose you want to create a PHP function which will simply Here are some advantages of using functions: The following section will show you how easily you can define your own function in PHP. a) PHP 4 Output: The product is 30 . A. B. php artisan C. git D. CLI Q4. In such cases, you can use the global keyword before the variables inside a function. Remember, try to write your functions to produce the output in the simplest form to have maximum control on their output or in other words DO NOT MIX PRESENTATION (HTML / CSS ETC) WITH PROCESSING (PHP). This is a simple example of an user-defined function, that display today's date: Note: A function name must start with a letter or underscore character not with a number, optionally followed by the more letters, numbers, or underscore characters. These are the following rules for naming a PHP variable: All variables in PHP start with a $ sign, followed by the name of the variable. You can also create functions with optional parameters — just insert the parameter name, followed by an equals (=) sign, followed by a default value, like this. C. It indicates function declaration. 19. How to define a variable in PHP? What will be the output of the following PHP code? What will be the output of the following PHP code? View Answer The value may be of any type, including arrays and objects. Single quotes are used to specify simple strings in PHP; Double quotes are used to create fairly complex strings in PHP; heredoc is used to create complex strings A. c) 0 3.To perform a task by a widget. Explanation: PHP allows us to create our own user-defined functions. C. Static. Join our social networks below and stay updated with latest contests, videos, internships and jobs! a) Error 5. Its very easy to create your own PHP function. Connect with us on Facebook and Twitter for the latest updates. 7. 1. However, in common usage these terms are interchangeable i.e. a self-contained block of code that performs a specific task.PHP D. Extern. Question: What is the use of the place() function in tkinter Python ? Functions MCQ question and answer with solution | PHP Programming. $variable_name = value; C. $variable_name == value; D. $variable_name as value; 2-8. a) Magic Function Tip: It is possible to reuse the same name for a variable in different functions, since local variables are only recognized by the function in which they are declared. 1. MCQ (Multiple Choice Questions) The table states the complete overview of PHP MCQ Online Test in one single view. A function will not execute automatically when a page loads. PHP allows us two ways in which an argument can be passed into a function: Pass by Value: On passing arguments using pass by value, the value of the argument gets changed within a function, but the original value outside the function remains unchanged. In PHP information are passed to functions through argument list, which is a comma-delimited list of expression. Add these variable result store in variable ($sum=$x+$y). 1.To put the widget on the screen

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