ProgramGuruIn PHP, you can check if two sets are equal by comparing their elements using built-in functions.
In this example,
$set1 and $set2.array_diff function to compare the arrays for equality.array_diff is an empty array, then sets are equal; otherwise, they are not.<?php
$set1 = [1, 2, 3];
$set2 = [1, 2, 3];
echo empty(array_diff($set1, $set2)) ? 'true' : 'false'; // Output: true
?>true
In this example,
$set1 and $set2.setsAreEqual to compare the sets.$set1 using a loop and check if it exists in $set2.true; otherwise, we return false.<?php
$set1 = [1, 2, 3];
$set2 = [4, 5, 6];
function setsAreEqual($set1, $set2) {
if (count($set1) !== count($set2)) {
return false;
}
foreach ($set1 as $item) {
if (!in_array($item, $set2)) {
return false;
}
}
return true;
}
echo setsAreEqual($set1, $set2) ? 'true' : 'false'; // Output: false
?>false
In this tutorial, we learned How to check if Two Sets are Equal in PHP language with well detailed examples.