An array element can be any type of data. You've seen numbers and strings, but you can even put an array inside an array. An array of arrays is also called a multidimensional array. Imagine a ten-by-ten grid. You've got 100 different squares, each of which can have its own value. One way to represent this in code is a two-dimensional array: a tenelement array of ten-number arrays, ten rows of ten columns.
To reference a single element, you first use square brackets to pick the first dimension (row), then use a second pair of brackets to pick the second dimension (column). Row 3, column 7, would be written as $someArray. initializes a multidimensional array using the array function. This shows that multidimensional arrays are just arrays of arrays.
Creating and Referencing a Multidimensional Array<?
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An Introduction To Php
Variables, Operators, And Expressions
Classes And Objects
I/o And Disk Access
Time, Date, And Configuration Functions
Parsing And String Evaluation
Sorting Searching And Random Numbers
Integration With Html
Efficiency And Debugging
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