Question

$array = Array(
     [FetchedData_I] => 1
     [EM_Account_V] => Test 2
     [EM_Date_D] => 2015-11-20
     [EM_Time_T] => 00:00:00
     [Channel_V] => 
     [OD_Online_Listing_ID_V] => 
     [OD_Item_Name_V] => Item Namesdsd
     [OD_Color_V] => 
     [OD_Condition_V] => 
     [OD_Qty_V] => 1
     [OD_Order_Date_D] => 0000-00-00
     [OD_Order_Time_T] => 00:00:00
     [OD_Ship_By_Date_D] => 0000-00-00
     [Comments_Internal_B] => 
 );

以上是查询返回的mysql数据，方案是忽略空数据并处理其他数据。

我目前正在使用：

foreach($array as $value) {
   if($value!='') {
      //Process the other
   }
}

在上述情况下，如何检查时间和日期的空数据，例如EM_Time_T，OD_Order_Date_D等，看看它们是否为空？

Answer 1

不要尝试在PHP中处理public function queryWhile($query){ $query = htmlspecialchars($query); $this->result = mysqli_query($this->db, $query); if(!$this->result){ echo "No response"; $this->closeDB(); }else{ while ($row = mysqli_fetch_array($this->result)){ $this->resultArray[] = $row; } } } return $this->queryWhile("SELECT articles.article_id, articles.PreviewText, articles.date,articles.Title, articles.previewText, image.thumbnail, articleAuthTable.nickname AS authorNickname, imageAuthTable.nickname AS imageNickname FROM articles LEFT JOIN image ON articles.previewImage = image.image_id LEFT JOIN authors AS articleAuthTable ON articles.author = articleAuthTable.author_id LEFT JOIN authors AS imageAuthTable ON image.author = imageAuthTable.author_id WHERE articles.categories = '".$this->category."' ORDER BY date DESC;");。相反，请修复表格中的问题。

在phpMyAdmin中，编辑表格的结构并勾选每个日期字段的0000-00-00框。这意味着如果在插入时未设置字段，则会改为NULL。

然后，在phpMyAdmin中运行以下SQL，但根据需要更改NULL和table_name：

field_name

要回答您的PHP UPDATE table_name SET field_name = NULL WHERE field_name = '0000-00-00';问题，您的代码应如下所示：

foreach

如何用0000-00-00清空日期字段？

1 个答案: