2维数组为什么只输出一个?
<br />
<?php<br />
<br />
$foodPrices = array(<br />
"vegetable" => array("potato" => 1.00, "onion" => .50),<br />
"fruit" => array("apple" => 2.50, "orange" => 2.00)<br />
);<br />
<br />
foreach($foodPrices as $category)<br />
{<br />
foreach($category as $food => $price);<br />
{<br />
$f_price = sprintf("%01.2f", $price);<br />
echo "$food: \$$f_price <br>";<br />
}<br />
}<br />
?><br />
ログイン後にコピー
输出只有
onion: $0.50
orange: $2.00
为什么会少一个
------解决方案--------------------foreach($foodPrices as $category)
{
foreach($category as $food => $price) //这一行多个分号
{
$f_price = sprintf("%01.2f", $price);
echo "$food: \$$f_price ";
}
}
------解决方案--------------------foreach($category as $food => $price);
这里多了个分号;
------解决方案--------------------第二个foreach后面有 ; 分号。
ok??
------解决方案--------------------foreach($category as $food => $price)
;<==多了个分号