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What is an Array ?

A variable is a storage area holding a number or text. The problem is, a variable will hold only one value. An array is a special variable, which can store multiple values in one single variable.

An array can hold all your variable values under a single name. And you can access the values by referring to the array name. Each element in the array has its own index so that it can be easily accessed.
In PHP, there are three kind of arrays:

1. Numeric array: An array with a numeric index
2. Associative array: An array where each ID key is associated with a value
3. Multidimensional array: An array containing one or more arrays

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