数组和foreach循环 php语法

$varint=55;
$varstring="张小小";
$varbool = true;
$varfloat=160.88;

$vararray = array("1"=>"one","2"=>"two");
$vardarray = array(
"cn"=>array("1"=>"一" ,"2"=>"二"),
"en"=>array("1"=>"one" ,"2"=>"two")
);
echo"<br><b>if语法：</b><br>";
if($varbool==true)
{
echo $varstring."身高为:{$varfloat}厘米<br>".$varfloat;
}else{
echo $varint*$varfloat;
}
echo "<br>int型*float型等于：".$varint*$varfloat;
echo "foreach 的应用<br/>";
foreach($vararray as $a)
{echo $a."<br>";}
echo"<br/>二维数组遍历<br/>";

//循环输出
foreach($vardarray as $a)
{
foreach($a as $b){
echo $b." ";
}
echo"<br/>";
}
foreach($vardarray["cn"] as $a){
echo "中文显示为：".$a;
}