如何检查数组是否有一些与另一个数组相同的元素，并从数组中弹出这些元素[复制]

I have an array like this:

array(1) {
  [0]=>
  string(16) "1785328791698338"
}

And other array like this:

array(7) {
  [0]=>
  string(17) "10207252567926988"
  [1]=>
  string(17) "10208823390691752"
  [2]=>
  string(17) "10209064245580796"
  [3]=>
  string(16) "1274474365912572"
  [4]=>
  string(16) "1294280923934896"
  [5]=>
  string(16) "1317727711586522"
  [6]=>
  string(16) "1785328791698338"
}

I should check if some of the elements(in this case only one, but it can vary) from first array are same as some elements in second array, and if they are, to remove them from first array. I tried doing it this way, but it does't work:

function findSameValuesOfArrays($arrayOne,$arrayTwo){
         $newArray=array();
         foreach($arrayOne as $a){
            $newArray[0]=$a;
         }
         foreach($arrayTwo as $b){
            $newArray[1]=$b;
         }
         if (strpos($newArray[1],$newArray[0])) {
            return true;
         }

    }

This is just to find if there are same elements, and then i would probably unset key where those values are. But function returns NULL.

</div>

array_diff does exactly what you want.

$sourceArr = array(1,2,3,4,5);
$filterArr = array(2,4);
$result = array_diff($sourceArr, $filterArr);
var_dump($result);

Result:

array(3) {
  [0]=>
  int(1)
  [2]=>
  int(3)
  [4]=>
  int(5)
}

https://3v4l.org/IvmHH

You can use array_intersect here like as:

$arr3 = array_intersect($arr1,$arr2);
print_r($arr3);

Here is an Examples:

https://3v4l.org/kqPV2

https://3v4l.org/qZpgf

Or You can read more at: http://php.net/manual/en/function.array-intersect.php

Try this:

$arrFirst = array("1785328791698338","10207252567926988");
$arrMain = array("10207252567926988","10208823390691752","10209064245580796","1274474365912572","1294280923934896","1317727711586522","1785328791698338");
foreach ($arrFirst as $key => $value) {
   if(in_array($value, $arrMain )) { // check if value exist in seconf array
        unset($arrFirst[$key]); // if yes - unset that value
   }
}

You can use array_intersect here to returns an array containing all the values of array1 that are present in all the arguments. and then array_diff

$arrFirst = array(0=>"1785328791698338",1=>"1785328791698334",3=>"1785328791698336");
$arrMain = array(0=>"10207252567926988",1=>"10208823390691752",3=>"10209064245580796",4=>"1785328791698338");
$arrIntersect = array_intersect( $arrMain,$arrFirst);
$resultArray = array_diff($arrFirst, $arrIntersect);
print "<pre>";print_r($resultArray);