How to determine if an array is not empty in php

The way to determine whether the array is empty in php is:

The array is empty. It means that the array does not contain any elements.

There are many ways to judge that the array is empty: List them one by one below

empty($array_test) //If the array $array_test is empty, then So this function returns true

if($array_test) //If the array is empty, then the condition of if is false

count($array_test) //Calculate the number of array elements. If it is 0, it is empty

sizeof($array_test) //The alias usage of count() is the same as the return

/ /In fact, there are some ways to judge whether the array is empty. The commonly used ones are these

Add

If the array is not defined

You can also use

isset($array_test)//Judge whether the array is defined

Recommended tutorial: "php tutorial"

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