Q:

Check if an array is empty or not in PHP

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mahmoud2506
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2022-05-25
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Given an array and we have to check if array is an empty or not using PHP.

To check whether an array is empty or not, we can use a built-in function empty(), in other cases where we want to check if a given variable is empty or not, it can also be used. It returns a Boolean response based on the condition that if the given variable contains a non-empty, non-zero value then it returns "false" otherwise, it returns "true".

Syntax:

    empty ($var);
    empty ($array);
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mahmoud2506
2022-05-25
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PHP code:

<?php
    // array declaration
    $array1 = array('hello', 'world');
    $array2 = array();
    
    //checking whether arrays are empty or not
    if (empty($array1)) {
        echo "array1 is empty\n";
    } else {
        echo "array1 is not empty\n";
    }
    
    if (empty($array2)) {
        echo "array2 is empty\n";
    } else {
        echo "array2 is not empty\n";
    }
?>

Output

array1 is not empty
array2 is empty

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