php - 使用 PHP 将文本文件插入 MySQL

Question

我尝试使用 PHP 从 .txt 文件加载数据，但每次都失败。我尝试将文本文件转换为 CSV，但即使如此我也失败了。我的文本文件包含如下内容:

0001

120PCS LED MOVING HEAD LIGHT

TECHNICAL PARAMETER
Voltage: AC90V-120V or 200V-240V 50-60HZ
Power consumption:400W
Light source:120PCS 1W or 3W LED 
(R:30pcs?G:30pcs,B:30psc,W:30pcs)
Control mode:12HS
Operation mode: master-slave, auto movement,
Sound control: DMX 512
Each led source has an expectancy over 50000 to 100000 hours in theory 
Optical len angle:15 degrees
Level scanning:540 degrees Vertical scanning
270 degrees, speed adjustable 
Indefinite RGBW color mixing system
LCD display adopted
Product size:512*402*555mm
N.W:19kg  G.W:21kg

0002

LED 108PCS MOVING HEAD LIGHT

TECHNICAL PARAMETER
Voltage:AC100V-240V ,50/60HZ 
Power consumption:306W
Light source:108pcs of 1/3W LED 
Operation mode master-slave, sound control,
auto movement,DMX512
Control channel:11Hs
Level scanning angle:540 degrees 
Vertical scanning angle:270degrees 
Quick electronic dimmer, strobe from 1 to 20 times/second
Smooth RGB mixing system &
Rainbow effect(can add white)
Beam angle:15 degrees
Package size :420*330*550mm
N.W:10kg  G.W:13kg

我尝试使用:

 <?php
 $handle = @fopen("data.txt", "r");
 $conn = mysql_connect("localhost","root",""); 
 mysql_select_db("mytext",$conn);
 while (!feof($handle)) // Loop til end of file.
 {
 $buffer = fgets($handle, 4096);
  // Read a line.
 list($a,$b,$c)=explode("|",$buffer);
 //Separate string by the means of |
 echo $a."-".$b."-".$c."<br>";
 $sql = "INSERT INTO data_table (id, name, age) VALUES('".$a."','".$b."','".$c."')";   
 mysql_query($sql,$conn) or die(mysql_error());
 }
 ?>

但我不知道如何很好地插入它。

value a = 0001
value b = 120PCS LED MOVING HEAD LIGHT
value c = Technicalparameter etc etc etc

value a = 0002
value b = LED 108PCS MOVING HEAD LIGHT
value c = Technicalparameter etc etc etc

我在使用分隔符时遇到问题。

Answer 1

假设您的输入文件如上所示，以下代码将起作用。即:

• 每条记录包含 3 个字段
• 文件中的字段以空行分隔

• 文件中可被 3 整除的字段数。

      <?php
      /* For simplicity in this example, I will assume the db table
       * conforms to the following schema:
       * 
       * CREATE TABLE products(
       *   id VARCHAR(5),
       *   item VARCHAR(100),
       *   item_details TEXT
       * );
       */
  
      /* Make the db connection */
      $link = mysql_connect('localhost', 'mysql_user', 'user_pwd');
      if (!$link) {
          die('Could not connect to db.');
      }
  
      // set the db.
      $db_selected = mysql_select_db('test', $link);
      if (!$db_selected) {
          die ("Can't access the db");
      }
  
      /* Read entire file into string. */
      $fileContents = file_get_contents('f1.txt');
  
      /* Set line ending character based on particular OS. 
       * Unix       = \n
       * Macintosh  = \r
       * MS Windows = \r\n
       */
      $lec = "\r\n"; // My system is MS Windows.
  
      /*Fields are separated by a blank line so the delimiter between
       * fields is double line ending character ($lec).
       */
      $delimiter = "$lec$lec";
  
      /* Build array of field data for all records. */
      $contentArray = explode($delimiter, $fileContents); 
  
      /* Get the size of the array. */
      $numElements = count($contentArray);
  
      /* Because we have 3 fields per record, $numElements should be 
       * evenly divisible by 3.
       */
      $numElelemtsPerRec = 3;
      if($numElements % $numElelemtsPerRec > 0) 
        exit("File parse error. Contents of file does not fill records.");
  
      /* Now build SQL input records. 
       * One record contails 3 ($numElelemtsPerRec) array elements.
       */
      for ($i = 0; $i <= $numElements - 1; $i = $i + $numElelemtsPerRec) {
          $id = mysql_real_escape_string($contentArray[$i]);
          $item = mysql_real_escape_string($contentArray[$i+1]);
          $item_details = mysql_real_escape_string($contentArray[$i+2]);
          $records .= "('$id', '$item', '$item_details'), ";
          echo("id = $id<br>
                item = $item<br>
                item_details = $item_details<br>
                <hr>");
      }
  
      /* Now trim the ending comma and space from string of records. */
      $records = substr($records, 0, -2);
      //exit($records);
  
      /* Build and execute the SQL INSERT query. */
      $query = "INSERT INTO products (id, item, item_details) 
               VALUES $records";
      $result = mysql_query($query);
  
      /* Check for db error. */
      if(!$result) echo("Query Error! Process aborted.");
  ?>