PHP - find records in one array that rea not found in another array?

Hi,
I need to find records that are in the $remote_emails array that don't already exist in the $local_emails array.

Is there an easy way to do this?

Thanks

				echo "Local Emails</br>";
				$local_emails = array('abc@hotmail.com','john@hotmail.com','peter@hotmail.com','peter3@hotmail.com','peter4@hotmail.com','peters@hotmail.com');
				print_r($local_emails);
                
                echo "</br>";
				echo "Remote Emails</br>";
                
                $remote_emails = array('andrew@hotmail.com', 'peter@hotmail.com','peter_62@hotmail.com');
				print_r($remote_emails);
				
				
				//if email address from $remote_emails array does not exists in $local_emails array then echo it here

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