Multiple choice technology

Which of the following functions are used by PHP to find out what type a variable is?

  1. gettype()

  2. is_double()

  3. get_type()

  4. is_date()

  5. A&B
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

PHP provides gettype() to determine a variable's type and is_double() as an alias for is_float() to specifically check for double/float types. Both functions serve type detection purposes, though is_double() is a deprecated alias for is_float(). The get_type() option is incorrect due to underscore placement, and is_date() is not a standard PHP function.

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