How to check if a Set is Not Empty in PHP - Step by Step Examples

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How to check if a Set is Not Empty in PHP ?

Answer

To check if a Set is not empty in PHP, you can use the count function or check if the Set is not evaluated as empty.

✐ Examples

1 Check if Set is Not Empty Using count Function

In this example,

We define a non-empty set named mySet containing elements of a specific type.
We use the count function to get the number of elements in the set.
If the count is greater than zero, then the set is not empty; otherwise, it is empty.

PHP Program

<?php
// Define non-empty set
$mySet = ['apple', 'banana', 'orange'];

// Check if set is not empty using count function
if (count($mySet) > 0) {
    echo 'Set is not empty';
} else {
    echo 'Set is empty';
}
?>

Output

Set is not empty

2 Check if Set is Not Empty Using Boolean Evaluation

In this example,

We define a non-empty set named mySet containing elements of a specific type.
We evaluate the set as a boolean expression.
If the set is evaluated as True, then it is not empty; otherwise, it is empty.

PHP Program

<?php
// Define non-empty set
$mySet = ['apple', 'banana', 'orange'];

// Check if set is not empty using Boolean evaluation
if ($mySet) {
    echo 'Set is not empty';
} else {
    echo 'Set is empty';
}
?>

Output

Set is not empty

Summary

In this tutorial, we learned How to check if a Set is Not Empty in PHP language with well detailed examples.

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How to check if a Set is Not Empty in PHP - Step by Step Examples

How to check if a Set is Not Empty in PHP ?

Answer

✐ Examples

1 Check if Set is Not Empty Using count Function

PHP Program

Output

2 Check if Set is Not Empty Using Boolean Evaluation

PHP Program

Output

Summary

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