根據選擇查詢結果更新數據庫記錄

嗨我想更新價格列，如果日期列包含今天的日期。以下是我的代碼，但它只更新一個記錄，即使有兩個相同日期的記錄。根據選擇查詢結果更新數據庫記錄

代碼

<?php 
    require('db.php'); 
    $tdate=date('Y-m-d'); 
    $query = 'SELECT * FROM marketplace_product WHERE splprice_from IS NOT NULL AND splprice_to IS NOT NULL'; 
    $result = mysqli_query($con, $query) or die(mysqli_error($con)); 
    if(mysqli_num_rows($result)>0) 
    { 
     while($row = mysqli_fetch_assoc($result)) 
     { 

      if($row['splprice_from']==$tdate) 
      { 
        print_r($row); 
       $ent=$row['entity_id']; 
       $updatePrice="UPDATE marketplace_product SET today_price=splprice WHERE entity_id=$ent"; 
       $result = mysqli_query($con, $updatePrice) or die(mysqli_error($con)); 
       if($result) 
        echo "Price updated for id".$row['entity_id']; 
       else 
        echo "Price not updated for id".$row['entity_id']; 
      } 
     } 
    } 

?>

打印結果

Array ([entity_id] => 2 [mageproduct_id] => 531 [adminassign] => 0 [seller_id] => 14 [store_id] => 0 [status] => 2 [seller_product_code] => [seller_price] => 5000.00 [splprice] => 4000.00 [splprice_from] => 2017-04-22 [splprice_to] => 2017-04-28 [today_price] => 0.00 [seller_qty] => 0 [return_qty] => [stock_per_day] => [confirmed_qty] => [pending_qty] => [sold_qty] => [canceled_qty] => [sell_limit] => 4 [discount_price] => [seller_tax] => [vat] => [cst] => [gst] => [octroi] => [created_at] => 2017-02-27 17:12:17 [updated_at] => 2017-02-27 17:12:17) 
Array ([entity_id] => 3 [mageproduct_id] => 532 [adminassign] => 0 [seller_id] => 13 [store_id] => 0 [status] => 2 [seller_product_code] => [seller_price] => 5000.00 [splprice] => 4000.00 [splprice_from] => 2017-04-22 [splprice_to] => 2017-04-28 [today_price] => 0.00 [seller_qty] => 0 [return_qty] => [stock_per_day] => [confirmed_qty] => [pending_qty] => [sold_qty] => [canceled_qty] => [sell_limit] => 6 [discount_price] => [seller_tax] => [vat] => [cst] => [gst] => [octroi] => [created_at] => 2017-02-28 09:47:38 [updated_at] => 2017-02-28 09:47:38)

上面更新查詢更新價格entity_id=2不是entity_id=3。任何幫助讚賞。

來源

2017-04-22 Nitin Pawar

@linktoahref OP在while循環中檢查當前是否是「splprice_from」，然後使用entity_id（在while循環中來自同一記錄）更新記錄。 –

@TomUdding有兩行有相同的日期。所以我想更新兩個記錄的價格。 –

其中一個原因可能是時區不匹配。 – Jigar

親愛的，你必須使用相同的對象「$結果」的選擇和更新的查詢，請更新名稱「$ resultUpdate」的更新查詢。

來源

2017-04-22 05:46:57 kaustubh

好的。 'while（$ row = mysqli_fetch_assoc（$ result））'正在使用第二次更新查詢的結果。 – Jigar

非常感謝。 –

根據選擇查詢結果更新數據庫記錄

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