Question

如何插入null date mysql real scape string

if (empty($DATE_PURCHASED)) {
    $DATE_PURCHASED = NULL;
} 

//sql query
$queryString = sprintf("INSERT INTO IT_ASSET_RADIO (BRAND_NAME, SERIAL_NO, DATE_PURCHASED, LICENSE_NO) 
    values ('%s','%s', '%s', '%s')",
    mysql_real_escape_string($BRAND_NAME),
    mysql_real_escape_string($SERIAL_NO),
    mysql_real_escape_string($DATE_PURCHASED),
    mysql_real_escape_string($LICENSE_NO));

$query = mysql_query($queryString ) or die("Insert failed: " . mysql_error());

如果是值，我在DATE_PURCHASED中收到此查询无效日期的错误为空

Answer 1

$date=mysql_real_escape_string($DATE_PURCHASED); 
if(trim($date)==''){ $date=NULL;}

在查询中使用$ date。

还

在表格中设置 DATE_PURCHASED 列默认为空

Answer 2

尝试以＆＃39; YYYY-MM-DD HH：MM：SS＆＃39;等格式传递日期字符串，如下所示：

..........mysql_real_escape_string(date('Y-m-d H:i:s', strtotime($DATE_PURCHASED))).....

Answer 3

if (empty($DATE_PURCHASED)) {      
      $DATE_PURCHASED = NULL;
    } else {
       $DATE_PURCHASED = $data->DATE_PURCHASED;
    }
    // Surround it in quotes if it isn't NULL.
    if ($DATE_PURCHASED === NULL) {
      // Make a string NULL with no extra quotes
      $DATE_PURCHASED = 'NULL';
    }
    // For non-null values, surround the existing value in quotes...
    else $DATE_PURCHASED = "'$DATE_PURCHASED'";

$queryString = sprintf("INSERT INTO IT_ASSET_RADIO (BRAND_NAME, SERIAL_NO, DATE_PURCHASED, LICENSE_NO) 
    values ('%s','%s', $DATE_PURCHASED , '%s')",
    mysql_real_escape_string($BRAND_NAME),
    mysql_real_escape_string($SERIAL_NO),
    mysql_real_escape_string($LICENSE_NO));

$query = mysql_query($queryString ) or die("Insert failed: " . mysql_error());

使用mysql真实转义字符串插入日期空值

3 个答案: