How to Check if One Array Contains All Values from Another Array in PHP?

How to Check if an Array Contains All Array Values from Another Array

In PHP, you can determine if one array contains all the values from another array using the array_diff() function. This function takes two arrays as arguments and returns an array containing the values from the first array that are not found in the second array. If the resulting array is empty, then the first array contains all the values from the second array.

For example, to check if the $all array contains all the values from the $search_this array, you can use the following code:

<code class="php">$containsAllValues = !array_diff($search_this, $all);</code>

This code will return true if the $all array contains all the values from the $search_this array, and false otherwise.

Another way to check if one array contains all the values from another array is to use the in_array() function. This function takes two arguments: a value to search for and an array to search in. If the value is found in the array, the function will return true, otherwise it will return false.

For example, to check if the $all array contains all the values from the $search_this array, you can use the following code:

<code class="php">$containsAllValues = true;
foreach ($search_this as $value) {
  if (!in_array($value, $all)) {
    $containsAllValues = false;
    break;
  }
}</code>

This code will return true if the $all array contains all the values from the $search_this array, and false otherwise.

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