Quick Answer: Which is correct about PHP?

Q 2 – Which of the following is correct about PHP? A – PHP performs system functions, i.e. from files on a system it can create, open, read, write, and close them. B – PHP can handle forms, i.e. gather data from files, save data to a file, thru email you can send data, return data to the user.

Which of the following is correct about constants in PHP?

Q 2 – Which of the following is correct about constants vs variables in PHP? A – There is no need to write a dollar sign ($) before a constant, where as in Variable one has to write a dollar sign. B – Constants cannot be defined by simple assignment, they may only be defined using the define() function.

Why do we use PHP?

PHP(short for Hypertext PreProcessor) is the most widely used open source and general purpose server side scripting language used mainly in web development to create dynamic websites and applications.

Which is the correct way to declare a PHP variable?

In PHP, a variable is declared using a $ sign followed by the variable name. Here, some important points to know about variables: As PHP is a loosely typed language, so we do not need to declare the data types of the variables. It automatically analyzes the values and makes conversions to its correct datatype.

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Which of the following is correct about variable naming rules?

Variable names must begin with a letter or underscore character. A variable name can consist of numbers, letters, underscores. you cannot use characters like + , – , % , ( , ) . & , etc in a variable name.

What is the correct way to create a function in PHP?

The declaration of a user-defined function starts with the word function, followed by the name of the function you want to create followed by parentheses i.e. () and finally place your function’s code between curly brackets {}.

What is PHP explain?

PHP (recursive acronym for PHP: Hypertext Preprocessor ) is a widely-used open source general-purpose scripting language that is especially suited for web development and can be embedded into HTML.

What is PHP vs HTML?

PHP is a scripting language | HTML is a markup language. PHP code is executed on the server | HTML code is parsed by the client browser. PHP creates dynamic web pages | HTML creates static web pages. PHP can access a database | Database cannot be accessed using HTML.

What is PHP full form?

PHP is an acronym for “PHP: Hypertext Preprocessor” PHP is a widely-used, open source scripting language. PHP scripts are executed on the server.

What is a PHP variable?

A variable in PHP is a name of memory location that holds data. In PHP, a variable is declared using $ sign followed by variable name. The main way to store information in the middle of a PHP program is by using a variable. Here are the most important things to know about variables in PHP.

What are PHP conditional statements?

PHP Conditional Statements

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if statement – executes some code if one condition is true. if…else statement – executes some code if a condition is true and another code if that condition is false. if… elseif…else statement – executes different codes for more than two conditions.

Is PHP strongly typed language?

While working with these programming scripts, you need to use a sign for each variable type(like string, integer, float, etc.) to declare them. You just need to assign a string value to the variable, to define that our variable is an integer. This is the reason why PHP is a loosely typed language.

Which variable name is not correct?

The following are examples of invalid variable names: age_ (ends with an underscore); 0st (starts with a digit); food+nonfood (contains character “+” which is not permitted)

Which is the correct variable name?

Rules for naming a variable

A variable name can only have letters (both uppercase and lowercase letters), digits and underscore. The first letter of a variable should be either a letter or an underscore. There is no rule on how long a variable name (identifier) can be.

Which of the following is correct name of variable?

‘Keyword cannot be a variable name’ is the correct statement. Explanation: Variables can be defined as the names which can be given to the memory locations that are used for storing values in a software program.