数组差异和元素部分相等

Question

I would like to compare two arrays excluding elements partially equal.

I have reached the following result:

1 2 3 4 5
6 7 8 9 10
11 12 13 14 15
21 22 23 24 25

The desired result is:

21 22 23 24 25

Attempt:

$aa = array("1 2 3 4 5", "6 7 8 9 10", "11 12 13 14 15", "16 17 18 19 20", "21 22 23 24 25");
$bb = array("1 2", "6 7 8", "11 12 13 14", "16 17 18 19 20");
$final = array_diff($aa, $bb);
print_r($final)

Answer 1

You can use preg_grep in order to not have to do any manipulation the the data.
This will regex to see what is matching and then you just use array_diff.

$aa = array("1 2 3 4 5", "6 7 8 9 10", "11 12 13 14 15", "16 17 18 19 20", "21 22 23 24 25");
$bb = array("1 2", "6 7 8", "11 12 13 14", "16 17 18 19 20");

$exclude = [];
foreach($bb as $b){
    $exclude = array_merge($exclude, preg_grep("/^". preg_quote($b) . "/", $aa));
}
$final = array_diff($aa, $exclude);

print_r($final);

https://3v4l.org/XI9Jd