Union for Rows - PHP

If you're working with data in PHP, you may come across situations where you need to combine two or more arrays into one. This is where the union for rows comes in.

What is the Union for Rows in PHP?

The union for rows is a PHP function that allows you to combine two arrays and remove any duplicate rows. It's especially useful when you need to merge data from multiple sources but only want unique rows.

How to Use the Union for Rows in PHP

The syntax for using the union for rows in PHP is simple:

$array1 = array(
    array('id' => 1, 'name' => 'John', 'age' => 25),
    array('id' => 2, 'name' => 'Jane', 'age' => 30),
);

$array2 = array(
    array('id' => 2, 'name' => 'Jane', 'age' => 30),
    array('id' => 3, 'name' => 'Bob', 'age' => 35),
);

$result = array_unique(array_merge($array1, $array2), SORT_REGULAR);

print_r($result);

In this example, the $array1 and $array2 arrays are combined using the array_merge() function. Then, the array_unique() function is used to remove any duplicates. Finally, the $result variable is printed to the screen using the print_r() function.

Conclusion

The union for rows in PHP is a powerful function that allows you to combine arrays and remove duplicates. It's essential when working with large amounts of data and is an excellent way to simplify your code. So, next time you need to merge arrays, remember the union for rows in PHP.