PHP TutorialLesson 21Free preview

PHP Arrays

This lesson is part of PHP · All levels

Summary

An array is a data type that can store many values in one variable, so data can be easily grouped and processed. This lesson discusses how to create an array, access elements based on indices starting from zero, and repeat the array content with foreach. There's also an inborn function to sort and calculate the elements.

Key points

The array holds many values in one variable
The index of PHP arrays starts from 0
Count the number of elements, sort up
Foreach is the most practical way to repeat the entire array element

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