Indexed or Numeric Array in PHP tutorialHindi Class 16
Indexed | Numeric Array in PHP
How arrays work
As you’ve seen already in last video, arrays are variables that can hold more than one value. Here are some more key facts about arrays in PHP:
An array can hold any number of values, including no values at all.
Each value in an array is called an element.
You access each element via its index, which is a numeric or string value. Every element in an array has its own unique index.
An element can store any type of value, such as an integer, a string, or a Boolean. You can mix types within an array — for example, the first element can contain an integer, the second can contain a string, and so on.
An array’s length is the number of elements in the array.
An array element’s value can itself be an array. This allows you to create multidimensional arrays.
Indexed arrays have numeric indices
Typically the indices in an indexed array start from zero, so the first element has an index of 0, the second has an index of 1, and so on. Usually, you use an indexed array when you want to store a bunch of data in a certain order.
Numeric arrays use number as access keys.
An access key is a reference to a memory slot in an array variable.
The access key is used whenever we want to read or assign a new value an array element.
If key is not specified, PHP will use the increment of the largest previously used integer key
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