PHPで配列内の同一の要素の数を数える方法

$arr = array(
	'a'=>'java',
	'b'=>'php',
	'c'=>'java',
);
$arr = array_values($arr);  //返回数组所有的值，并建立数字索引
$arr1 = array();
 
foreach ($arr as $a){
	if (!isset($arr1[$a])){
		$arr1[$a] = 1;
	}else {
		$arr1[$a]++;
	}
}
 
echo "<table border=&#39;1&#39; cellpadding=&#39;5&#39;>";
foreach($arr1 as $k=>$val){
	echo "<tr><td>$k</td><td>$val</td></tr>";
}
echo "</table>";

$a=array("Cat","Dog","Horse","Dog");

print_r(array_count_values($a));