Question

如何将新阵列添加到用户会话或同一/现有会话。我有以下两个PHP文件。

fruits.php

<?php
<form action="processfruits.php" method="POST">

<select name="myfruit_list[]">
    <option value="apples">Apples</option>
    <option value="oranges">Oranges</option>
</select>

<select name="myfruit_list[]">
    <option value="grapes">Grapes</option>
    <option value="pears">Pears</option>
</select>

<input type="submit" value="Confirm Order">

</form> 
?>

processfruits.php

<?php

$data = array();
$data = $_POST['myfruit_list'];

echo "Number of Fruit Bowls: " . count($data) . "<br />"; 

foreach($data as $selection => $name)
 {   
   echo "<br>" . $selection . ":     ";
   $string = implode(", ", $name);
   echo $string . "<br />";   
 }  

?>

我希望在同一用户会话下为每次处理/确认实现的输出：

   Number of Fruit Bowls: 4

   Data 1:   Apples, Grapes 
   Data 2:   Oranges, Pears 
   Data 3:   Apples, Pears  
   Data 4:   Oranges, Grapes

每次用户提交“确认订单”按钮而不覆盖第一个订单确认或数组时，如何让数组看起来像上面的那个。

Answer 1

我想你想要这个：

    <?php
   session_start();

   if($_SERVER["REQUEST_METHOD"]=="POST") {


   if(isset($_POST["del"]))
   {    
    $oft=$_POST["del"];
   unset($_SESSION["data"][2*$oft-1]);
    unset($_SESSION["data"][(2*$oft-2)]);

    }
    else
   {

    $_SESSION["data"]=array_merge($_POST['myfruit_list'],$_SESSION["data"]);

    }

    $t=2;
   $data=$_SESSION["data"];
   echo "Number of Fruit Bowls: " . count($data)/2 . "<br />";

    foreach($data as $selection => $name) {   
    if($t%2==0) {
        echo "<br>";
        echo "data : ".($t/2)." ";
    }
    else { 
        echo ",";
    }

    echo $name;
    $t++;


    }
    }

   else {
$_SESSION["data"]=[];
     }
   ?>

      <form action="<?php echo $_SERVER['PHP_SELF'];?>" method="POST"> 
<select name="myfruit_list[]">
    <option value="apples">Apples</option>
    <option value="oranges">Oranges</option>
</select>
<select name="myfruit_list[]">
    <option value="grapes">Grapes</option>
    <option value="pears">Pears</option>
</select>
<input type="submit" value="Confirm Order">
      </form> 


   <form action="<?php echo $_SERVER['PHP_SELF'];?>" method="POST"> 
   <input type="text"  placeholder="row number to be deleted..." name="del">
    <input type="submit" value="Delete row">
   </form>

根据要求更新......

    <form action="add.php" method="POST"> 
     <input type="submit" value="add"/>
     </form>

ok ..还有一个表单..将此代码添加到同一页面...

   <?php

    session_start();

    if($_SERVER["REQUEST_METHOD"]=="POST")
    {
     $conn=@mysql_connect("localhost","root","") or die("could not connect to database");
     $db=@mysql_select_db("stack",$conn) or die("could not select database");

      $data=$_SESSION["data"];
     $temp="";$t=0;

    foreach($data as $selection => $name) {  


    if($t%2==0) {
     $temp=$name;
    echo $temp;
     }
    else { 

    $id=rand(1000,9999);
    $row=ceil(($t/2));
    $sql="insert into st(id,row,fruit1,fruit2) values(\"$id\",\"$row\",\"$name\",\"$temp\")";
    $res=mysql_query($sql,$conn) or die("could not execute ");


       }    
       $t++;
    }

    }
     ?>

<强> add.php ........

{{1}}

如何在PHP中添加新数组

1 个答案: