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我想運行一個php上傳,它檢查序列號是否已經存在,如果它沒有提交數據。PHP提交數據前檢查序列號(數據)
這樣:
提交表單 - > PHP檢查數據庫的重複序列號 - >如果序列號不存在,則發佈數據//如果確實存在,忽略輸入
我嘗試但是什麼都似乎沒有工作。以下是我的代碼,但不管我做了什麼,即使序列號已經存在,也會提交數據。
形式:
<form id="form1" action="senddata.php" name="form1" method="post">
<table class="table2" cellpadding="0" cellspacing="0">
<tr><td colspan="3"><input type="button" onClick="update()" value="Get Details"></td></tr>
<tr>
<td><label for="description">Description:</label></td>
<td><input tabindex="0" required type="text" name="description" id="description"></td>
</tr>
<tr>
<td><label for="nameofcomputer">Computer Code:</label></td>
<td><input tabindex="1" required type="text" name="nameofcomputer" id="nameofcomputer"></td>
</tr>
<tr>
<td><label for="make">Make:</label></td>
<td><input tabindex="2" required type="text" name="make" id="make"></td>
</tr>
<tr>
<td><label for="model">Model:</label></td>
<td><input tabindex="3" required type="text" name="model" id="model"></td>
</tr>
<tr>
<td><label for="serial">Serial Number:</label></td>
<td><input tabindex="4" required type="text" name="serial" id="serial"></td>
</tr>
<tr>
<td><label for="inputname">Your Name: </label></td>
<td><input tabindex="5" required id="inputname" name="inputname">
</td>
</tr>
</table>
<input required type="submit" name="submit" id="submit" value="Submit">
</form>
PHP
$desc=$_POST['description'];
$code=strtoupper($_POST['nameofcomputer']);
$make=$_POST['make'];
$model=$_POST['model'];
$serial=strtoupper($_POST['serial']);
$user=$_POST['inputname'];
$type='1';
$org='-1';
$control = "8670";
$now = new DateTime(null, new DateTimeZone('Europe/London'));
$date = $now->format('Y-m-d H:i:s');
$conn = sqlsrv_connect($serverName, $connectionInfo);
$dupe = sqlsrv_query($conn, "SELECT * FROM Asset WHERE Serial_Number = '$serial'");
$num_rows = sqlsrv_num_rows($dupe);
if ($num_rows == 0) {
$tsql = "INSERT INTO Asset (Name, Asset_Type_ID, Ref_Code, Owner_Organisation_ID, Make, Model, Serial_Number, Current_Location, Start_Date)
VALUES ('$desc', '$type', '$code', '$org', '$make', '$model', '$serial', '$user', '$date')";
sqlsrv_query($conn, $tsql);
echo "Asset Uploaded";
} else {
echo 'Error! Already on our database!';
}
任何幫助,得到這個工作表示讚賞。
是你的Serial_Number列是在整數類型的數據庫? –
我也試着去掉這個WHERE(Serial_Number ='$ serial')的括號,再加上它們不需要。 –
您嘗試過空($ dupe);而不是$ num_rows == 0? –