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PHP, How To Compare Two Arrays And Get Values That Are Not Present In Second Array

March 9, 2023576 views0

In this tutorial, we will show you how to use the array_diff() function in PHP to compare two arrays and find values that are not present in the second array. With our step-by-step guide on PHP Compare Two Arrays, you can easily enhance your programming skills and improve your efficiency in array manipulation. By learning how to compare arrays in PHP, you can simplify your code and perform more complex tasks with ease.

You can compare two arrays in PHP using the array_diff() function, which returns an array containing all the values from the first array that are not present in any of the other arrays.

Here’s an example code snippet:

$array1 = array('apple', 'banana', 'orange', 'grape');
$array2 = array('banana', 'orange', 'kiwi');

$not_in_array2 = array_diff($array1, $array2);

print_r($not_in_array2);

$array1 = array('apple', 'banana', 'orange', 'grape');

$array2 = array('banana', 'orange', 'kiwi');

$not_in_array2 = array_diff($array1, $array2);

print_r($not_in_array2);

Output:

Array
(
    [0] => apple
    [3] => grape
)

Array

(

[0] => apple

[3] => grape

)

In this example, $array1 and $array2 are the two arrays that we want to compare. The array_diff() function takes these two arrays as arguments, with $array1 as the first argument and $array2 as the second argument.

The output of the array_diff() function is an array containing all the values from $array1 that are not present in $array2. In this case, the output is an array containing ‘apple’ and ‘grape’, because these values are not present in $array2.

You can then use the resulting array $not_in_array2 for further processing, such as displaying the values or storing them in another array.

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