Question

让我有一个像这样的数组

$age=array("Peter"=>"35","Ben"=>"37","Joe"=>"43");

<?php 
 $age=array("Peter"=>"35","Ben"=>"37","Joe"=>"43");
?>
    <div id="3">
          <!-----result of foreach loop---->
    </div>
    <div id="1">
         <?php 
            foreach ($age as $key => $value) {?>
                    <p><?php echo $value;?></p>
            <?php
            }
         ?>
    </div>
    <div id="2">
        <!-----result of foreach loop---->
    </div>
<?php
?>

我想在<div id="2">和<div id="3">中打印相同的结果，没有循环遍历数组，我只想使用循环一次。

Answer 1

 <?php 
            $pAge = "";
            foreach ($age as $key => $value) {
               $pAge .= "<p>" . $value . "</p>";
            }
 ?>

    <div id="3">
          <?= $pAge; ?>
    </div>
    <div id="1">
          <?= $pAge; ?>
    </div>

Answer 2

您可以尝试将所有这些变量放入变量中，然后将它们回显出去像这样的东西 -

<?php 
 $age=array("Peter"=>"35","Ben"=>"37","Joe"=>"43");
 $display_str = "";
 foreach ($age as $key => $value) {
    $display_str .= $value;
 }
?>
<div id="1">
  <?php echo $display_str;?>     
</div>
<div id="2">
    <!-----result of foreach loop---->
    <?php echo $display_str;?>
</div>

Answer 3

只需将html存储在div部分之前并打印三次：

<?php 
    $age=array("Peter"=>"35","Ben"=>"37","Joe"=>"43");

    $htmlString = '';
    foreach ($age as $key => $value) 
    {
        $htmlString .= '<p>'.$value.'</p>';
    }
?>

<div id="3">
   <?=$htmlString?>
</div>
<div id="1">
   <?=$htmlString?>
</div>
<div id="2">
   <?=$htmlString?>
</div>

Answer 4

你可以这样做：

<div id="1">


 <?php 
        $html="";
        foreach ($age as $key => $value) {


                $html .= "<p>".$value."</p>";
                }
               echo $html;
                ?>

</div>
<div id="2">
    <?php echo $html; ?>
</div>

Answer 5

只需将结果值存储在使用的数组中，如下所示：

<?php 
$age=array("Peter"=>"35","Ben"=>"37","Joe"=>"43");
?>
    <div id="3">
          <!-----result of foreach loop---->
    </div>
    <div id="1">
         <?php 
            $res = array();
            foreach ($age as $key => $value) {?>
                    <p><?php 
                    $res[] = $value;
                    echo $value;?></p>
            <?php
            }
         ?>
    </div>
    <div id="2">
        <!-----result of foreach loop---->
        <?php
            echo '<pre>';
            print_r($res); ?>
        <p><?php 
            echo $res[0];
            echo $res[1];
            echo $res[2];
        ?></p>
    </div>
<?php
?>

Answer 6

你也可以使用：

<?php 
  function myfunction($value,$key)
  {
      echo "$value<br>";
  }

 $age=array("Peter"=>"35","Ben"=>"37","Joe"=>"43");
?>
    <div id="3">
         <?php array_walk($age,"myfunction"); ?>
    </div>
    <div id="1">
        <?php array_walk($age,"myfunction"); ?>
    </div>
    <div id="2">
        <?php array_walk($age,"myfunction"); ?>
    </div>

从多个位置的循环打印数据，而无需再次运行循环

6 个答案: