To filter an array in PHP and include only elements that meet a certain condition, you can use the array_filter() function along with a callback function. Here's an example:
// Sample array
$numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
// Callback function to check if a number is even
$evenNumbers = array_filter($numbers, function($value) {
return $value % 2 === 0;
});
// Output the filtered array
print_r($evenNumbers);
Output:
Array
(
[1] => 2
[3] => 4
[5] => 6
[7] => 8
[9] => 10
)
In the above example, we have an array of numbers $numbers. The array_filter() function accepts this array as the first argument and a callback function as the second argument. The callback function returns true or false for each element of the array based on a condition. In this case, the condition checks if a number is even using the modulus operator %. The filtered array containing only the even numbers is stored in $evenNumbers and then printed using print_r().