Check if any element in one flat array are not found in another flat array [duplicate]

Question

I have the following script where I'm checking/matching items between two array. If 2nd array contains different item then return false;

$requiredString = [
    "string1",
    "string2",
    "string3",
    "string4",
    "string5"
];

$receivedString = [
    "string1",
    "string2",
    "string3",
    "string4",
    "testString7"
];
foreach ($receivedString as $key => $value) {
    if (!in_array($value, $requiredString)) {
        return false;
    }
}
return true;

The script works good but I want to refactor the script. I.E make short or decrease execution time.

Is there a possible way to refactor the script ?

behzad m salehi · Accepted Answer · 2021-12-29 05:22:40Z

3

you can use array_diff function :

return empty(array_diff($requiredString, $receivedString));

answered Dec 29, 2021 at 5:22

behzad m salehi

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Comments

Kamran · Accepted Answer · 2021-12-29 05:39:00Z

0

Try this:

<?php
  $arr1 = [
    "string1",
    "string2",
    "string3",
    "string4",
    "string5"
];
  $arr2 = [
    "string1",
    "string2",
    "string3",
    "string4",
    "testString7"
];
 
  // Sort the array elements
  sort($arr1);
  sort($arr2);
 
  // Check for equality
  if ($arr1 == $arr2)
      echo "Both arrays are same\n";
  else
      echo "Both arrays are not same\n";

answered Dec 29, 2021 at 5:39

Kamran

1

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