>print_r($samplearr) 为包含 3 个项目的数组打印以下内容:
Array ( [4722] => Array ( [value1] => 52 [value2] => 46 )
Array ( [4922] => Array ( [value1] => 22 [value2] => 47 )
Array ( [7522] => Array ( [value1] => 47 [value2] => 85 )
我想将这些放入 HTML 表中,所以我正在做一个 foreach,但它没有达到我的预期:
foreach($samplearr as $item){
print "<tr><td>" . key($item) . "</td><td>" . $samplearr['value1'] . "</td><td>" . $samplearr['value2'] . "</td></tr>";
}
哪个正在返回:
<tr><td>value1</td><td>52</td><td>46</td></tr>
这将是我想要的第一个输出:
<tr><td>4722</td><td>52</td><td>46</td></tr>
我需要使用什么功能而不是key($item)来获取4722?
试试这个:
foreach($samplearr as $key => $item){
print "<tr><td>"
. $key
. "</td><td>"
. $item['value1']
. "</td><td>"
. $item['value2']
. "</td></tr>";
}
将 foreach 与键和值一起使用。
例:
foreach($samplearr as $key => $val) {
print "<tr><td>"
. $key
. "</td><td>"
. $val['value1']
. "</td><td>"
. $val['value2']
. "</td></tr>";
}
你需要嵌套的foreach循环
foreach($samplearr as $key => $item){
echo $key;
foreach($item as $detail){
echo $detail['value1'] . " " . $detail['value2']
}
}