php之茴字写法

<?php
//字符串中引用数组元素的方式
$arr = array(
    'name' => 'value',
);
echo "$arr[name], {$arr['name']}\n";


//对象操作符后的字符串拼接
class class1
{
        public function testmethod()
        {
                echo "call testmethod\n";
        }
}
$obj = new class1();
$obj->testmethod();
$obj->{'testmethod'}();
$obj->{'test'.'method'}();
$name = 'testmethod';
$obj->{$name}();
$obj->$name();