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phparraysstringarray-filter

2 PHP arrays for merge

How to delete element from array as it has partial in another?

Other words, I need to compare 2 array likely in_array php function, but partially.

Code:

$a = ['abc', 'cde', 'efg', 'hi'];
$b = ['bce', 'ifg', 'hig'];
// return $b without 'hig' because in $a has partially 'hi'

Thanks very much for any solution!

Solution

  • If you want to make any string in $b not have any string in $a as a substring. demo

    <?

$a = ['abc', 'cde', 'efg', 'hi'];
$b = ['bce', 'ifg', 'hig'];

$b = array_filter($b, function($v) use($a){ 
    foreach($a as $str){
      if(strpos($v, $str) !== false)
        return false;
    }
    return true;
});

print_r($b);