PHP：在插入SQL時將每個數據放入單引號（''）中

Question

我有一段代碼，允許我從csv文件將數據導入到數據庫。但是，插入數據時出現問題，因爲我要插入的值沒有單引號（''）。我試圖呼應出來的SQL查詢，我得到這個：

INSERT INTO bill_of_materials(allotment_code, category_name) VALUES(Site Electrical,Aldea Electrical Work),(CM-S24,Assembly),(CM-S4,Assembly),(CM-S4,Assembly),(CM-S8,Assembly),(CM-S3,Assembly),(CM-S3,Assembly),(CM-S3,Assembly),(CM-S8,Assembly),(CM-S4,Assembly),(CM-S24,Assembly),(CM-S8,Assembly),(CM-S23,Assembly),(CM-S23,Assembly),(CM-S23,Assembly),(CM-S22,Assembly),(CM-S22,Assembly),(CM-S22,Assembly),(CM-S24,Assembly),(CM-D2,Assembly),(CM-D18,Assembly),(CM-D18,Assembly),(CM-D14,Assembly),(CM-D14,Assembly),(CM-D14,Assembly),(CM-D20,Assembly),(CM-D20,Assembly),(CM-D20,Assembly),(CM-D13,Assembly),(CM-D13,Assembly),(CM-D10,Assembly),(CM-D18,Assembly),(CM-D10,Assembly),(CM-D13,Assembly),(CM-D2,Assembly),(CM-D2,Assembly),(CM-D21,Assembly),(CM-D21,Assembly),(CM-D21,Assembly),(CM-D11,Assembly),(CM-D11,Assembly),(CM-D11,Assembly),(CM-D12,Assembly),(CM-D12,Assembly),(CM-D12,Assembly),(CM-D10,Assembly),(CM-D19,Assembly),(CM-D17,Assembly),(CM-D17,Assembly),(CM-D19,Assembly),(CM-D16,Assembly),(CM-D15,Assembly),(CM-D15,Assembly),(CM-D15,Assembly),(CM-D17,Assembly),(CM-D19,Assembly),(CM-D1,Assembly),(CM-D1,Assembly),(CM-D16,Assembly),(CM-D16,Assembly),(CM-D1,Assembly),(CM-S17,Assembly),(CM-S18,Assembly),(CM-S18,Assembly),(CM-D26,Assembly),(CM-D26,Assembly),(CM-D26,Assembly),(CM-S16,Assembly),(CM-S16,Assembly),(CM-D4,Assembly),(CM-D4,Assembly),(CM-D3,Assembly),(CM-D3,Assembly),(CM-D25,Assembly),(CM-S17,Assembly),(CM-S21,Assembly),(CM-D9,Assembly),(CM-D9,Assembly),(CM-D9,Assembly),(CM-S17,Assembly),(CM-D8,Assembly),(CM-D8,Assembly),(CM-D8,Assembly),(CM-S12,Assembly),(CM-S12,Assembly),(CM-S12,Assembly),(CM-D25,Assembly),(CM-D25,Assembly),(CM-D3,Assembly),(CM-D5,Assembly),(CM-S13,Assembly),(CM-S13,Assembly),(CM-S13,Assembly),(CM-S19,Assembly),(CM-S19,Assembly),(CM-S19,Assembly),(CM-S20,Assembly),(CM-S20,Assembly),(CM-S20,Assembly),(CM-D7,Assembly),(CM-D7,Assembly),(CM-D7,Assembly),(CM-S18,Assembly),(CM-D5,Assembly),(CM-S21,Assembly),(CM-D22,Assembly),(CM-D22,Assembly),(CM-D22,Assembly),(CM-S15,Assembly),(CM-S15,Assembly),(CM-S15,Assembly),(CM-S11,Assembly),(CM-S11,Assembly),(CM-S11,Assembly),(CM-D23,Assembly),(CM-S21,Assembly),(CM-D4,Assembly),(CM-D5,Assembly),(CM-D24,Assembly),(CM-D24,Assembly),(CM-D23,Assembly),(CM-D23,Assembly),(CM-D6,Assembly),(CM-S14,Assembly) 

我有我下面的PHP代碼：

<form method="post" enctype="multipart/form-data"> 
<input type="file" name="csv" value="" /> 
<input type="submit" name="submit" value="Save" /></form> 

<?php 

$new_conn = mysqli_connect('localhost', 'root', '153624123', 'db_lazvasmunhomesinc'); 

if(isset($_FILES['csv']['tmp_name'])) { 
    $data = $_FILES['csv']['tmp_name']; 
    $handle = fopen($data, "r"); 
    $test = file_get_contents($data); 

    if(!empty($data)) { 

     if ($handle) { 
      $counter = 0; 
      //instead of executing query one by one, 
      //let us prepare 1 SQL query that will insert all values from the batch 
      $sql ="INSERT INTO bill_of_materials(allotment_code, category_name) VALUES"; 
      while (($line = fgets($handle)) !== false) { 
       $sql .="($line),"; 
       $counter++; 
      } 
      $sql = substr($sql, 0, strlen($sql) - 1); 
      if (mysqli_query($new_conn, $sql) === TRUE) { 
       echo 'success'; 
      } else { 
       echo $sql; 
      } 
      fclose($handle); 
     } else { 
     } 
     //unlink CSV file once already imported to DB to clear directory 
     unlink($data); 
    } else 
     echo '<script>alert("EMPTY!");</script>'; 
} 
?> 

我試圖用另一個代碼是：

如果（！empty（$ data））{

if ($handle) { 
    $counter = 0; 
    //instead of executing query one by one, 
    //let us prepare 1 SQL query that will insert all values from the batch 
    $sql ="INSERT INTO bill_of_materials(allotment_code, category_name) VALUES"; 
    while (($line = fgets($handle)) !== false) { 
     $sql .= "('".implode("', '", explode(",", $line))."'),"; 
     $counter++; 
    } 
    $sql = substr($sql, 0, strlen($sql) - 1); 
    if (mysqli_query($new_conn, $sql) === TRUE) { 
     echo 'success'; 
    } else { 
     echo $sql; 
    } 
    fclose($handle); 
} 

它的工作原理，但有一點問題。因爲它會分裂逗號後的數據，有的來自CSV文件中的數據有一個逗號，這將導致這樣的：從CSV文件

INSERT INTO bill_of_materials(allotment_code, category_name) VALUES('"OH:Fuel', ' Oil and Accessories"', 'Avanza Gray-OBNO-1782 ') 

的數據是：哦：燃油，機油和配件和AVANZA格雷OBNO-1782

預期的輸出應爲：

INSERT INTO bill_of_materials(allotment_code, category_name) VALUES('"OH:Fuel Oil and Accessories"', 'Avanza Gray-OBNO-1782') 

，我試圖另一個碼是這樣的：

$sql ="INSERT INTO bill_of_materials(allotment_code, category_name) VALUES"; 
    while (($line = fgets($handle)) !== false) { 
     $sql .= "('{$line[0]}', '{$data[1]}'),"; 
     $counter++; 
    } 

但插入的數據不正確，它會導致這樣：

我的CSV文件看起來像這樣：

一些數據從我的CSV有一個逗號。

數據不在單引號內。我希望你能幫助我。提前致謝。

Answer 1

由於您使用CSV文件，則可以解析在while循環每行與str_getcsv()：

$values = str_getcsv('"OH:Fuel, Oil and Accessoires",Avanza Gray-OBNO-1779'); 

...然後將值回SQL語句：

$sql .= "('" . array_shift($values) . "', '" . (isset($values) ? implode(",", $values) : "") . "'),"; 

並且不要忘記申請rtrim()的SQL語句，所以最後一個逗號被刪除：

$sql = rtrim($sql, ","); 

---

您還可以使用fgetcsv()以讀取和作爲數組逐行解析CSV文件：

示例：

$file = __DIR__ . "/data.csv"; 
$sql = "INSERT INTO `bill_of_materials` (`allotment_code`, `category_name`) VALUES "; 

$handle = fopen($file, "r"); 

while ($data = fgetcsv($handle)) { 
    $sql .= "('" . array_shift($data) . "', '" . (isset($data) ? implode(",", $data) : "") . "'),"; 
} 

fclose($handle); 

$sql = rtrim($sql, ","); 

Answer 2

添加單引號：

$sql .="('$line'),";