插入在php不工作

Question

我有這個PHP腳本，從表單插入數據到數據庫中。代碼總是返回一個錯誤。可能是什麼問題。 注意：表單中的字段名稱已正確匹配。

<?php 
$db_hostname = 'localhost'; 
$db_database = 'townmanagement'; 
$db_username = 'root'; 
$db_password = ''; 

// Connect to server. 
$db_server = mysql_connect($db_hostname, $db_username, $db_password) 
or die("Unable to connect to MySQL: " . mysql_error()); 

mysql_select_db($db_database) 
or die("Unable to select database: " . mysql_error()); 

// Get values from form 
$fname= mysql_escape_string(trim ($_POST['fname'])); 
$lastname= mysql_escape_string(trim ($_POST['lname'])); 
$dpt=mysql_escape_string(trim($_POST['dpt'])); 
$user= mysql_escape_string(trim ($_POST['username'])); 
$psswd=mysql_escape_string(trim ($_POST['password'])); 



// Insert data into mysql 
$sql="INSERT INTO staff_reg (fname, lname, dpt, username, password, registration_date) 
VALUES ($fname, $lastname, $dpt, $user, SHA1($password), NOW())"; 
$result = mysql_query($sql); 

if($result){ 
echo ("sUCCESSFUL"); 
} 
else { 
echo "error";; 
} 

?> 

<?php 
// close connection 
mysql_close(); 
?> 

Answer 1

你缺少圍繞你的價值觀報價：

$sql="INSERT INTO staff_reg (fname, lname, dpt, username, password, registration_date) 
VALUES ('$fname', '$lastname', '$dpt', '$user', SHA1($password), NOW())"; 

爲了更好地排除故障，考慮添加到您的mysql_query聲明爲什麼查詢未能檢測到何時：

$result = mysql_query($sql) or die(mysql_error()); 

最後，請注意，mysql_*函數已棄用。請考慮更新您的代碼以使用mysqli或PDO。

Answer 2

您需要引用SQL語句

$sql="INSERT INTO staff_reg (fname, lname, dpt, username, password, registration_date) 
VALUES ('$fname', '$lastname', '$dpt', '$user', SHA1('$password'), NOW())"; 

您的參數，如果可能的話，你應該升級到mysqli或pdo。

Answer 3

mysql_select_db($db_database,$db_server) 
or die("Unable to select database: " . mysql_error()); 
//you have to select db using connection previously established 

Answer 4

試試這個：你應該知道，我不鼓勵你使用mysql_，因爲它已被棄用，您應瞭解並在未來實現PDO：

<?php 
$db_hostname = 'localhost'; 
$db_database = 'townmanagement'; 
$db_username = 'root'; 
$db_password = ''; 

// Connect to server. 
$db_server = mysql_connect($db_hostname, $db_username, $db_password) 
or die("Unable to connect to MySQL: " . mysql_error()); 

mysql_select_db($db_database) 
or die("Unable to select database: " . mysql_error()); 

// Get values from form 
$fname= mysql_escape_string(trim ($_POST['fname'])); 
$lastname= mysql_escape_string(trim ($_POST['lname'])); 
$dpt=mysql_escape_string(trim($_POST['dpt'])); 
$user= mysql_escape_string(trim ($_POST['username'])); 
$psswd=mysql_escape_string(trim ($_POST['password'])); 

$psswd2 = SHA1($psswd); 

// Insert data into mysql 
$sql="INSERT INTO staff_reg (fname, lname, dpt, username, password, registration_date) 
VALUES ('".$fname."', '".$lastname."', '".$dpt."', '".$user."', '".$psswd2."', "NOW()")"; 

if(mysql_query($sql)); { 
echo ("sUCCESSFUL"); 
}else { 
echo "error";; 
} 
mysql_close(); 
?>