A variable is what you use to store something.
When to use
Anytime you have some data to store, use a variable.
Variables in PHP start with a dollar sign: $
Variable names should be descriptive. If your variable will hold an age, name the variable $age or something like that.
Variable names can't start with a number.
Variable names contain alpha-numeric characters, and underscores.
Variable names are case sensitive.
Hints & tips
- Variables are like buckets that let you store stuff.
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