插入數組到mysql

Question

我有我的數組顯示，但我似乎無法將它保存到數據庫中。所以，當我做var_dump($result);而$結果是我的數組，那麼下面的內容顯示

array 
0 => 
array 
    'Credit Weighting' => string '5' (length=1) 
    'Teaching Period(s)' => string 'Teaching Periods 1 and 2.' (length=25) 
    'No. of Students' => string '-.' (length=2) 
1 => 
array 
    'Credit Weighting' => string '5' (length=1) 
    'Teaching Period(s)' => string 'Teaching Periods 1 and 2.' (length=25) 
    'No. of Students' => string '-.' (length=2) 
2 => 
array 
    'Credit Weighting' => string '10' (length=2) 
    'Teaching Period(s)' => string 'Teaching Periods 1 and 2.' (length=25) 
    'No. of Students' => string '-.' (length=2) 

，下面將我的PDO查詢保存上述內容到MySQL但沒有什麼是happening.What我做錯了，請？

$result = array(); 
$placeholder = array(); 
$values = "?, ?, ?"; 
foreach ($result as $array){ 
$placeholder[] = $value; 

     $result[] = $array['CreditWeighting']; 
     $result[] = $array['TeachingPeriod']; 
     $result[] = $array['NoofStudents'];   
} 

$sql = "INSERT INTO data_array_copy (CreditWeighting,TeachingPeriod,NoofStudents) 
          VALUES (". implode('), (', $placeholder) . ")"; 
$stmt = $conn->prepare($sql); 
$stmt->execute($result); 

Answer 1

好吧，如果有人在那裏，可能需要知道一個更簡單的方法，這可以做到。這是一個很好的解決方案。

$result = array(); 
foreach($result as $snode) { 

foreach($snode as $key => &$val) { 
    $val = mysql_real_escape_string($val);  
} 

$query = sprintf("INSERT INTO data_array_copy (
     CreditWeighting, 
     TeachingPeriod, 
     NoofStudents) 
        VALUES ('%s')",implode("','",$snode)); 

mysql_query($query) or die (mysql_error()); 
echo $query. '<br />'; 
} 

這很好用！

Answer 2

試試這個：

<?php 
//If your array is: 
/* 
$result = array(0=>array('Credit Weighting'=>'5', 
         'Teaching Period(s)'=>'Teaching Periods 1 and 2.', 
         'No. of Students'=> '-.'), 
       1=>array('Credit Weighting'=>'5', 
         'Teaching Period(s)'=>'Teaching Periods 1 and 2.', 
         'No. of Students'=> '-.'), 
       2=>array('Credit Weighting'=>'10', 
         'Teaching Period(s)'=>'Teaching Periods 1 and 2.', 
         'No. of Students'=> '-.')); 
*/ 
//The query 
$sql = "INSERT INTO data_array_copy (CreditWeighting,TeachingPeriod,NoofStudents) 
       VALUES (?,?,?)"; 
//Prepare the query 
$stmt = $conn->prepare($sql); 

//Loop through the $result array 
foreach ($result as $array){ 
    //Bind and execute the values to the prepared query 
    $stmt->bindParam(1, $array['Credit Weighting']); 
    $stmt->bindParam(2, $array['Teaching Period(s)']); 
    $stmt->bindParam(3, $array['No. of Students']); 
    $stmt->execute($result); 
} 
?> 

有在http://php.net/manual/en/pdo.prepared-statements.php結合PARAMS其他方法，但是直到你熟悉的來龍去脈，使其儘可能地易讀。通過這種方式，您或其他開發人員可以查看發生了什麼，而無需var_dump數組來獲取密鑰名稱等。 :)