How do you name a variable in PHP?

All variables in PHP start with a $ sign, followed by the name of the variable. A variable name must start with a letter or the underscore character _ . A variable name cannot start with a number. A variable name in PHP can only contain alpha-numeric characters and underscores ( A-z , 0-9 , and _ ).

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Which variable is valid name in PHP?

A variable name must start with a letter or the underscore character. A variable name cannot start with a number. A variable name can only contain alpha-numeric characters and underscores (A-z, 0-9, and _ ) Variable names are case-sensitive ( $age and $AGE are two different variables)

What are the different type of PHP variables?

PHP Data Types

String.
Integer.
Float (floating point numbers – also called double)
Boolean.
Array.
Object.
NULL.
Resource.

What are the types of variables available in PHP Mcq?

PHP has three types of variable scopes: Local variable. Global variable. Static variable.

What are the types of variables in PHP Mcq?

How many variables are there in PHP?

PHP has eight diffrent types of values or datatypes. The first five are basic: integers, floating-point, string, booleans, null.

How many data types are there in PHP?

eight different types
Data Types define the type of data a variable can store. PHP allows eight different types of data types.

What are valid variable names?

Variable Names

Each variable name must be unique; duplication is not allowed.
Variable names can be up to 64 bytes long, and the first character must be a letter or one of the characters @, #, or $.
Variable names cannot contain spaces.
A # character in the first position of a variable name defines a scratch variable.

Which are valid variable names Select 2 options?

Options 1, 3, and 4 are valid variable names. This is because variable names can contain letters, digits, and an underscore. They cannot start with a number as in 2nd_num….Select 2 options.

result = a * b – b / c.
result = a * b – c / b.
result = ab + bc.
result = a * b – b / (c + b)
result = a * b – c / (a + c)