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PHP Variables

PHP Variables

A Variable is a holder used to store both numeric and non-numeric data.

Rules for Variable declaration

  • In PHP, variable starts with a dollar($) sign, succeeded by the name of the variable.
  • In PHP, a variable name must start with a letter or the underscore character.
  • In PHP, a variable name only contains alpha-numeric characters and underscores (A-Z,a-z, 0-9, and _).
  • A variable name must not contain space.

Assigning Values to Variables

	$name = "infovistar";
	echo $name;

Example (Addition of two numbers):

	$a = 10;
	$b = 15;
	$c = $a + $b;
	echo $c;