4.5. Brief Introduction to Variable Types
Variables in PHP can be of type integer (a whole number), floating-point (usually called "float"; a fractional number), string (a set of characters), array (a group of data), object (a complex mix of data and functionality), or a resource (any external information, such as an image). We will be looking at data types
in more depth later on; for now, you only need to know what variables are and how they work.
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