php基础笔记 - Arrow difference

/***************************by garcon1986********************************/

 

<?php // -> 是指对象的方法或者属性 class Cart{ public function add_item($a,$b){ echo $a+$b.'<br>'; } } //$cart = new Cart; 两句意义相同 $cart = new Cart(); $cart->add_item("10", 1); // => 数组的元素赋值 //键值one对应的值是1, 键值two对应的值是2,键值对应的值是3. $a = array("one"=>1, "two"=>2, "three"=>3); echo $a["one"].'<br>'; echo $a["two"].'<br>'; echo $a["three"].'<br>'; //$key=>$value 指键值对应的值 foreach($a as $key => $value){ echo "The /$key is: $key, The /$value is: $value<br>"; } ?>