Variables & Data Types in PHP (original) (raw)

Which function is used to check the data type of a variable in PHP?

What is the result of the following PHP code: $x = "10" + 5;?

Which of the following is not a scalar data type in PHP?

How do you declare a variable in PHP?

Which of the following is the correct way to declare a constant in PHP?

What is the default value of an uninitialized variable in PHP?

Which of the following is the correct way to declare a global variable in PHP?

Which of the following is the correct way to create a null variable in PHP?

How do you declare a floating-point variable in PHP?

What is the proper way to define an array in PHP?

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