What are some alternative methods for filtering arrays in PHP, besides using call-by-reference?
When filtering arrays in PHP, using call-by-reference can lead to unexpected behavior and alter the original array. To avoid this, you can use alternative methods like array_filter() or array_walk() to create a new array with the filtered values without modifying the original array.
// Using array_filter() to filter an array without modifying the original array
$originalArray = [1, 2, 3, 4, 5];
$filteredArray = array_filter($originalArray, function($value) {
return $value % 2 == 0; // Filter even numbers
});
print_r($filteredArray);
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