PHP Empty Array | How to Check if Array is Empty PHP With Example
Summary: In this article, we learn PHP empty array and also learn how to check if array is empty PHP. this article is useful to php check for empty array. Let’s understand in details.
Definiation and Usages
Arrays in PHP: Use the array() function to create an array in PHP. Basically, three types of an array which supported in PHP:
Indexed arrays: Arrays having a numeric index.
Associative arrays: Arrays having named keys.
Multidimensional arrays: It contains one or more arrays in a particular array.
The Best way to initialize empty array in PHP
it’s always the best execution or practice to declare an empty array and then push the items to that array?
When declaring in PHP an empty array and then beginning to enter elements in it later. With the support of this, it can prevent different errors due to a faulty array. It helps to have the information or details of using bugged, rather than having the array. It saves time throughout the debugging. furthermore, most of the time it may not have something to add to the array at the point of creation.
There are the syntax to create an PHP empty array:
Further, While pushing an element to the array then it can use $emptyArray = "first". Therefore, at this time, $emptyArray contains “first”, with this command and it will send “first” to the array which is declared empty at beginning or starting.
also, we can say that in other words, the initialization of the new array is faster, use syntax var first =  rather while using syntax var first = new Array(). Furthermore, the fact is being a constructor function the function Array() and the,  is a part of the literal grammar of array. Therefore, both are complete and executed in completely different methods or ways. Here, both functions are optimized and not bothered by the overhead of any of the calling functions.
PHP Empty Array Example
Program 1: Basic Program
/* This method to create an Empty array. */
echo"It will Created the First empty array <br>";
/* This method to create the Second Empty array. */
echo"it will Created the second empty array<br>";
/* First method to create array. */
echo"Value is $value <br>";
/* Second method to create array. */
echo"Value is $value <br>";
It will Created the First empty array
Created the second empty array
The Value is 11
The Value is 12
Value is eleven
Value is twelve
The given an array is not empty
The given an array is empty
3rd Method: Using sizeof() function
This sizeof() function, checks the size of the array. If the size of the array is 0 (zero) then the array is empty otherwise array isn’t empty. Example:
// To Declare an empty array
// Use array index to check
// array is empty or not
echo"An empty Array";
An empty Array
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