Question

这是我的Csv上传脚本如何让它忽略我的Csv文件的前两行。找不到合适的方法来跳过/忽略它。有点帮助吗？

<?php
    include 'connect.php';
    if ( isset( $_FILES['userfile'] ) )
    {
      $csv_file = $_FILES['userfile']['tmp_name'];

      if ( ! is_file( $csv_file ) )
        exit('File not found.');



      if (($handle = fopen( $csv_file, "r")) !== FALSE)
      {
          while (($data = fgetcsv($handle, 1000, ",")) !== FALSE)
          {  
            {
            $sql = "INSERT INTO `prelims` (`name`,`grade`) VALUES('$data[0]','$data[2]')";  
            $exec = mysql_query($sql) or die(mysql_error());    

            echo ("The following data has been added to the database");
            }
          }
        }
      }
    ?>

Answer 1

fgetcsv($handle); // get line 0 and move pointer to line 1
fgetcsv($handle); // get line 1 and move pointer to line 2
while (($data = fgetcsv($handle, 1000, ",")) !== FALSE)
...

您可能还希望在此基础上进行一些错误检查，以确保您的CSV中至少包含2行。

Answer 2

请注意，上述部分答案不正确。这条线 fseek($handle, 2); 不向前寻找两条线;它寻求前进两个字节。要跳过任意数量的行，您可以这样做：

$skipLines = 5000; // or however many lines you want to skip
$lineNum = 1;
if ($skipLines > 0) {
    while (fgetcsv($handle)) {
        if ($lineNum==$skipLines) { break; }
        $lineNum++;
    }
}
while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
    // starts getting data from 5001st row
}

如何跳过我的Csv文件中的前两行

2 个答案: