PHP打印使用While循环和数组返回的所有值

我对以下代码有问题，它只返回最后1条记录

使用while循环，我能够检索所有的值并将其添加到数组中，并为每个循环获取它，但我无法返回所有的值

调用此函数时，只返回最后1条记录。任何人都可以帮助我修复这个代码，它将返回所有的值。谢谢

echo gettradinghours("54");
function gettradinghours($storeid){

  $select_tradinghours = mysqli_query("SELECT * FROM `tradinghours` where `storeid`='54' ORDER BY FIELD(openday, 'MONDAY', 'TUESDAY', 'WEDNESDAY', 'THURSDAY', 'FRIDAY', 'SATURDAY', 'SUNDAY');");

 $atradinghours = array();
 while($fetch_tradinghours = mysqli_fetch_array($select_tradinghours)){
     array_push($atradinghours, $fetch_tradinghours['openday']. ' ' .$fetch_tradinghours['starttime']. ' - ' .$fetch_tradinghours['endtime']);
  }
  foreach($atradinghours as $atradinghoursr){
       $getval = $atradinghoursr;
  }

  return $getval;
}

为什么又是一个foreach

function gettradinghours($storeid){
            $select_tradinghours = mysqli_query("SELECT * FROM `tradinghours` where `storeid`='54' ORDER BY FIELD(openday, 'MONDAY', 'TUESDAY', 'WEDNESDAY', 'THURSDAY', 'FRIDAY', 'SATURDAY', 'SUNDAY');");

           $atradinghours = array();
           while($fetch_tradinghours = mysqli_fetch_array($select_tradinghours)){
                 array_push($atradinghours, $fetch_tradinghours['openday']. ' ' .$fetch_tradinghours['starttime']. ' - ' .$fetch_tradinghours['endtime']);
            }

   return $atradinghours;
}

---

在数组中循环并返回最后一个数组元素

在你想要的地方，整个阵列

foreach($atradinghours as $atradinghoursr){
                 $getval = $atradinghoursr;
            }

应该只是

$getval = $atradinghours;
return $atradinghours;

（1）返回数组：

function gettradinghours($storeid){
                $getval = array();
                $select_tradinghours = mysqli_query("SELECT * FROM `tradinghours` where `storeid`='54' ORDER BY FIELD(openday, 'MONDAY', 'TUESDAY', 'WEDNESDAY', 'THURSDAY', 'FRIDAY', 'SATURDAY', 'SUNDAY');");

               $atradinghours = array();
               while($fetch_tradinghours = mysqli_fetch_array($select_tradinghours)){
                     array_push($atradinghours, $fetch_tradinghours['openday']. ' ' .$fetch_tradinghours['starttime']. ' - ' .$fetch_tradinghours['endtime']);
                }
                foreach($atradinghours as $atradinghoursr){
                     $getval[] = $atradinghoursr;
                }
       return $getval;
    }

（2）返回字符串：

function gettradinghours($storeid){
                $getval = '';
                $select_tradinghours = mysqli_query("SELECT * FROM `tradinghours` where `storeid`='54' ORDER BY FIELD(openday, 'MONDAY', 'TUESDAY', 'WEDNESDAY', 'THURSDAY', 'FRIDAY', 'SATURDAY', 'SUNDAY');");

               $atradinghours = array();
               while($fetch_tradinghours = mysqli_fetch_array($select_tradinghours)){
                      $getval.= $fetch_tradinghours['openday']. ' ' .$fetch_tradinghours['starttime']. ' - ' .$fetch_tradinghours['endtime'];
                }

       return $getval;
    }

---

问题在于

$getval

您只是在存储最后一个元素

您还需要在所有元素中使其成为一个数组，

push（）

，就像您在while循环中所做的那样

然后返回数组

或者只需返回所有数据的

$atradinghours

• 首先要指出的是，

  mysqli\u query（）

  的第一个参数是您需要为它提供一个mysqli连接

• 其次，您不需要另一个foreach循环。只需将值推送到while中，最后返回该值容器

---

是的，您将在foreach循环完成后返回值，因此它将返回$atradinghours中的最后一个值array@lock，我已经发布了您问题的答案，您只需要在$getval的forloop中添加括号。因此，它将是$getval[]而不是$getval&您的问题将得到解决。rning:mysqli_stmt:：bind_result（）：绑定变量的数量与prepared中的字段数量不匹配statement@lock我做了一些修改，再次查看返回为“Array”的输出结果@lock yes，这是一个数组，使用

var\u dump（）/print\u r（）

要查看内容，我可以使用print\r（）查看输出，但问题是我不希望以数组格式输出，我需要的输出只是字符串格式。输出回显为“array”：（你的意思是，你没有得到数组吗？你可以打印\r（你的返回数组）而不是使用echo作为数组！输出本身被打印为“array”.$valuesArray=gettradinghours（storeid）；打印（$valuesArray）；请按上述注释尝试，您可以获得预期结果。 function gettradinghours($storeid){ // 1st point! connection! $connection = mysqli_connect('localhost', 'username', 'password', 'database_base'); $select_tradinghours = mysqli_query($connection, "SELECT * FROM `tradinghours` WHERE `storeid`='54' ORDER BY FIELD(openday, 'MONDAY', 'TUESDAY', 'WEDNESDAY', 'THURSDAY', 'FRIDAY', 'SATURDAY', 'SUNDAY')"); $atradinghours = array(); // no need for that array push thing, just push it normally and return in the end while($fetch_tradinghours = mysqli_fetch_array($select_tradinghours)){ $atradinghours[] = $fetch_tradinghours['openday']. ' ' .$fetch_tradinghours['starttime']. ' - ' .$fetch_tradinghours['endtime']; } return $atradinghours; // return the gathered/pushed values } print_r(gettradinghours("54")); // use the function function gettradinghours($storeid){ // connection! $connection = mysqli_connect('localhost', 'username', 'password', 'database_base'); // use prepared statements! $stmt = $connection->prepare(" SELECT openday, starttime, endtime FROM `tradinghours` WHERE`storeid` = ? ORDER BY FIELD(openday, 'MONDAY', 'TUESDAY', 'WEDNESDAY', 'THURSDAY', 'FRIDAY', 'SATURDAY', 'SUNDAY') "); $stmt->bind_param('i', $storeid); // bind the paramter input! $stmt->execute(); $stmt->bind_result($openday, $starttime, $endtime); $atradinghours = array(); while($stmt->fetch()) { // as usual push the values $atradinghours[] = $openday. ' ' .$starttime. ' - ' .$endtime; } return $atradinghours; // return the gathered values } print_r(gettradinghours(54));

$atradinghours = '';
while($stmt->fetch()) { // as usual push the values
    $atradinghours .=  $openday. ' ' .$starttime. ' - ' .$endtime . '<br/>';
}

echo gettradinghours(54);