Question

我正在尝试使用PHP从.txt文件加载数据，但每次都失败了。我试图将文本文件转换为CSV，但即使在那里我也失败了。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

我试图使用：

 <?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());
 }
 ?>

但我无法弄清楚如何很好地插入它。

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

我遇到分隔符问题。

Answer 1

以下代码将起作用，假设您的输入文件如上所示。那就是：

每条记录包含3个字段
文件中的字段用空行

文件中的字段数量可被3整除。

    <?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.");
?>

Answer 2

您正尝试使用| explode每一行性格，但我没有看到任何|在文中！ PHP代码看起来很好（未经测试）。这是需要工作的文本输入。

使用PHP将文本文件插入MySQL

2 个答案: