将$ key中的第一条记录作为$ value assoc_arr获取

Question

我有Assoc_arr，数组中的值是： -

Array
(
    [SIZE] => 8.5x11 
    [FOLDING] => HalfFold To 4.25x11 
    [PAPER] => 100lb Gloss Book with Aqueous Coating (C2S) 
    [COLOR] => full/full 
    [TURNAROUND] => Standard 
)

当我打印它时，它会使用以下代码打印所有值： -

    echo "<table>";
  foreach ($final_array as $key => $value)
  {
    echo "<tr>";
    echo "<td>";
    echo $key;
    echo "</td>";
    echo "<td>";
    echo $value;
    echo "</td>";
    echo "</tr>";
  }
  echo "</table><br><br>";

我怎样才能从assoc_arr中获取[SIZE] => 8.5x11记录。

Answer 1

检查：

echo "<table>";
foreach ($final_array as $key => $value)
{
    if('SIZE' == $key) {
        echo "<tr><td>";
        echo $key;
        echo "</td><td>";
        echo $value;
        echo "</td></tr>";
    } else {
        // do something else
    }
}
echo "</table><br><br>";

更新

如果只想要SIZE键的值，则不需要任何循环。你可以得到它$ final_array [＆＃39; SIZE＆＃39;]，否则上面的东西会帮助你。

Answer 2

试试此代码

echo "<table>";
    echo "<tr>";
    echo "<td>";
    echo key($arr);
    echo "</td>";
    echo "<td>";
    echo $arr[key($arr)];
    echo "</td>";
    echo "</tr>";
  echo "</table><br><br>";

Answer 3

您可以尝试以下代码

echo "<table>";
foreach ($array as $key => $value)
{
    if('SIZE' == $key) {
        echo "<tr><td>";
        echo $key;
        echo "</td><td>";
        echo $value;
        echo "</td></tr>";
    }
}
echo "</table>";

Answer 4

您可以使用array_keys获取第一个键和值：

$keys = array_keys($final_array);

$key = $keys[0];
$value = $final_array[$key];