在試圖將本網站放在一起時,編寫函數以允許版主添加產品時遇到了問題。我附上了代碼和我收到的錯誤消息。
功能(從產品model.php):
當傳遞給SQL語句時,PHP變量未定義
function insPro(){
// Create a connection object using the acme connection function
$db = acmeConnect();
// The SQL statement
$sql = 'INSERT INTO inventory (invName, invDescription, invImage, invThumbnail, invPrice, invStock, invSize, invWeight, invLocation, categoryId, invVendor, invStyle)
VALUES (:invName, :invDescription, :invImage, :invThumbnail, :invPrice, :invStock, :invSize, :invWeight, :invLocation, :categoryId, :invVendor, :invStyle)';
// Create the prepared statement using the acme connection
$stmt = $db->prepare($sql);
$stmt->bindValue(':invName', $invName, PDO::PARAM_STR);
$stmt->bindValue(':invDescription', $invDescription, PDO::PARAM_STR);
$stmt->bindValue(':invImage', $invImage, PDO::PARAM_STR);
$stmt->bindValue(':invThumbnail', $invThumbnail, PDO::PARAM_STR);
$stmt->bindValue(':invPrice', $invPrice, PDO::PARAM_STR);
$stmt->bindValue(':invStock', $invStock, PDO::PARAM_STR);
$stmt->bindValue(':invSize', $invSize, PDO::PARAM_STR);
$stmt->bindValue(':invWeight', $invWeight, PDO::PARAM_STR);
$stmt->bindValue(':invLocation', $invLocation, PDO::PARAM_STR);
$stmt->bindValue(':categoryId', $categoryId, PDO::PARAM_STR);
$stmt->bindValue(':invVendor', $invVendor, PDO::PARAM_STR);
$stmt->bindValue(':invStyle', $invStyle, PDO::PARAM_STR);
// Insert the data
$stmt->execute();
// Ask how many rows changed as a result of our insert
$rowsChanged = $stmt->rowCount();
// Close the database interaction
$stmt->closeCursor();
// Return the indication of success (rows changed)
return $rowsChanged;
錯誤信息:
Notice: Undefined variable: invName in C:\CIT336\htdocs\acme\model\product-model.php on line 37
Notice: Undefined variable: invDescription in C:\CIT336\htdocs\acme\model\product-model.php on line 38
Notice: Undefined variable: invImage in C:\CIT336\htdocs\acme\model\product-model.php on line 39
Notice: Undefined variable: invThumbnail in C:\CIT336\htdocs\acme\model\product-model.php on line 40
Notice: Undefined variable: invPrice in C:\CIT336\htdocs\acme\model\product-model.php on line 41
Notice: Undefined variable: invStock in C:\CIT336\htdocs\acme\model\product-model.php on line 42
Notice: Undefined variable: invSize in C:\CIT336\htdocs\acme\model\product-model.php on line 43
Notice: Undefined variable: invWeight in C:\CIT336\htdocs\acme\model\product-model.php on line 44
Notice: Undefined variable: invLocation in C:\CIT336\htdocs\acme\model\product-model.php on line 45
Notice: Undefined variable: categoryId in C:\CIT336\htdocs\acme\model\product-model.php on line 46
Notice: Undefined variable: invVendor in C:\CIT336\htdocs\acme\model\product-model.php on line 47
Notice: Undefined variable: invStyle in C:\CIT336\htdocs\acme\model\product-model.php on line 48
Fatal error: Uncaught PDOException: SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'invName' cannot be null in C:\CIT336\htdocs\acme\model\product-model.php:50 Stack trace: #0 C:\CIT336\htdocs\acme\model\product-model.php(50): PDOStatement->execute() #1 C:\CIT336\htdocs\acme\products\index.php(158): insPro('Baseball', 'A round ball wi...', 'no-image.png', 'no-image.png', '5', '24', '6', '6', 'San Jose', '15', 'Diamond', 'Nylon') #2 {main} thrown in C:\CIT336\htdocs\acme\model\product-model.php on line 50
我不知道爲什麼變量是未定義因爲我在相同的文件中使用相同的語法使用相似的函數,並且工作正常。
我在做什麼錯了代碼?
功能是範圍特定的。 – chris85
@ chris85我明白,但功能在範圍內 –
函數內部的變量不是。在'insPro'中永遠不會定義'$ invName'等。 – chris85