高老师解释一下呗

$ages['Peter'] = "32";
$ages['Quagmire'] = "30";
$ages['Joe'] = "34";

echo "Peter is " . $ages['Peter'] . " years old.";

作者: yanjia151   发布时间: 2011-08-23

Peter is 32 years old.

作者: lasp   发布时间: 2011-08-24