How to get different values ​​in two arrays in php

PHP is a server-side scripting language widely used in web development. Its flexibility enables developers to write efficient and creative applications. However, as the size increases, many times we need to obtain different values ​​of the array with different characteristics. Here we will explain how to get the different values ​​in two arrays.

Before we begin, we need to create two PHP arrays containing different values. Please refer to the sample code below:

$array1 = array("apple", "banana", "peach", "orange", "grape");
$array2 = array("banana", "orange", "pear", "kiwi");

With these two arrays, we can use the array_diff() function to get the different values ​​between them. This function is a built-in function of PHP that can be used to compare the values ​​​​of two arrays and return the values ​​​​in one array that do not appear in the other array.

The following is a sample code using the array_diff() function:

$result = array_diff($array1, $array2);
print_r($result);

In this sample code, we pass $array1 and $array2 as function parameters to the array_diff() function, and the result Assigned to the $result variable and printed.

This way you can get the different values ​​between the two arrays. In our example, the $result array should contain the three values ​​​​"apple", "peach" and "grape". This is because these three values ​​appear in $array1 but not in $array2.

Some developers may be confused by the behavior exhibited by "garbage values" or "null values". In this case, you can use the array_filter() function to filter the values ​​and return an array without garbage or null values.

The following is a sample code using the array_filter() and array_diff() functions:

$array1 = array("apple", "banana", "", "peach", "orange", null, "grape");
$array2 = array("banana", "orange", "pear", "", "kiwi", null);

$array1 = array_filter($array1);
$array2 = array_filter($array2);

$result = array_diff($array1, $array2);
print_r($result);

In this sample code, we have removed all elements from $array1 and $array2 by using the array_filter() function. Garbage and null values. We can then use the array_diff() function to get the different values ​​in these two arrays. The final result, the $result array should contain the two values ​​"apple" and "peach".

In this article, we learned how to get the difference between two arrays using array_diff() function in PHP. We also learned how to use the array_filter() function to filter junk and null values.

By understanding these techniques, you will be able to write more efficient and creative applications. Good luck!

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