比较值不是相同顺序的两个数组

Question

Is there a fast way of doing something like this Compare two arrays with the same value but with a different order in PHP?

I have arrays with potentially same data but in different order and I just need to see whether they are identical.

OK, turns out I get back an object and not an array, I guess...

object(Doctrine\ORM\PersistentCollection)#560 (9) etc.

hmm... Would the easiest way perhaps to iterate over the contents of the collection in order to create my own array and then compare like you all suggested?

Just adding code for my final solution

        //Find out if container receives mediasync
        $toSync = array();
        foreach($c->getVideosToSync() as $v) {
            $toSync[] = $v->getId();
        }

        $inSync = array();
        foreach($c->getVideosInSync() as $v) {
            $inSync[] = $v->getId();
        }

        $noDiff = array_diff($toSync, $inSync);
        $sameLength = count($toSync) === count($inSync);

        if( empty($noDiff) && $sameLength ) {
           $containerHelper[$c->getId()]['syncing'] = false;
        }
        else {
            $containerHelper[$c->getId()]['syncing'] = true;    
        }

Answer 1

Just get them in a uniform order using sort() & then diff with them with array_diff().

# Set the test data.
$array1 = array(1,2,3,4,9,10,11);
$array2 = array(3,4,2,6,7);

# Copy the arrays into new arrays for sorting/testing.
$array1_sort = $array1;
$array2_sort = $array2;

# Sort the arrays.
sort($array1_sort);
sort($array2_sort);

# Diff the sorted arrays.
$array_diff = array_diff($array1_sort, $array2_sort);

# Check if the arrays are the same length or not.
$length_diff = (count($array1) - count($array2));
$DIFFERENT_LENGTH = ($length_diff != 0) ? true : false;

# Check if the arrays are different.
$ARE_THEY_DIFFERENT = ($array_diff > 1) ? true : false;

if ($DIFFERENT_LENGTH) {
  echo 'The are different in length: ' . $length_diff;
}
else {
  echo 'They have the same length.';
}
echo '<br />';

if ($ARE_THEY_DIFFERENT) {
  echo 'They are different: ' . implode(', ', $array_diff);
}
else {
  echo 'They are not different.';
}
echo '<br />';