使用PHP自动将HTML表格转换为CSV？

Question

我只是需要使用PHP在csv中自动转换这个html表.有人可以提供任何想法如何做到这一点？谢谢.

$table = '<table border="1">
<tr>
<th>Header 1</th>
<th>Header 2</th>
</tr>
<tr>
<td>row 1, cell 1</td>
<td>row 1, cell 2</td>
</tr>
<tr>
<td>row 2, cell 1</td>
<td>row 2, cell 2</td>
</tr>
</table>';

伙计们,我只需要$ table来转换.csv文件,这可以使用一些PHP函数自动生成.我们可以将该csv文件的路径定义为/ test/home/path_to_csv

Answer 1

你可以使用str_get_html http://simplehtmldom.sourceforge.net/

include "simple_html_dom.php";
$table = '<table border="1">
<tr>
<th>Header 1</th>
<th>Header 2</th>
</tr>
<tr>
<td>row 1, cell 1</td>
<td>row 1, cell 2</td>
</tr>
<tr>
<td>row 2, cell 1</td>
<td>row 2, cell 2</td>
</tr>
</table>';

$html = str_get_html($table);



header('Content-type: application/ms-excel');
header('Content-Disposition: attachment; filename=sample.csv');

$fp = fopen("php://output", "w");

foreach($html->find('tr') as $element)
{
    $td = array();
    foreach( $element->find('th') as $row)  
    {
        $td [] = $row->plaintext;
    }
    fputcsv($fp, $td);

    $td = array();
    foreach( $element->find('td') as $row)  
    {
        $td [] = $row->plaintext;
    }
    fputcsv($fp, $td);
}


fclose($fp);

Answer 2

您可以在单独的js文件中使用此函数:

function exportTableToCSV($table, filename) {

        var $rows = $table.find('tr:has(td)'),

            // Temporary delimiter characters unlikely to be typed by keyboard
            // This is to avoid accidentally splitting the actual contents
            tmpColDelim = String.fromCharCode(11), // vertical tab character
            tmpRowDelim = String.fromCharCode(0), // null character

            // actual delimiter characters for CSV format
            colDelim = '","',
            rowDelim = '"\r\n"',

            // Grab text from table into CSV formatted string
            csv = '"' + $rows.map(function (i, row) {
                var $row = $(row),
                    $cols = $row.find('td');

                return $cols.map(function (j, col) {
                    var $col = $(col),
                        text = $col.text();

                    return text.replace('"', '""'); // escape double quotes

                }).get().join(tmpColDelim);

            }).get().join(tmpRowDelim)
                .split(tmpRowDelim).join(rowDelim)
                .split(tmpColDelim).join(colDelim) + '"',

            // Data URI
            csvData = 'data:application/csv;charset=utf-8,' + encodeURIComponent(csv);

        $(this)
            .attr({
            'download': filename,
                'href': csvData,
                'target': '_blank'
        });
    }

现在,要启动此功能,您可以使用:

$('.getfile').click(
            function() { 
    exportTableToCSV.apply(this, [$('#thetable'), 'filename.csv']);
             });

其中'getfile'应该是分配给按钮的类,您要在其中添加号召性用语.(单击此按钮时,将显示下载弹出窗口),"thetable"应为分配给要下载的表的ID.

您还可以更改为要在代码中下载的自定义文件名.

Answer 3

您可以使用数组和正则表达式执行此操作...请参阅下文

$csv = array();
preg_match('/<table(>| [^>]*>)(.*?)<\/table( |>)/is',$table,$b);
$table = $b[2];
preg_match_all('/<tr(>| [^>]*>)(.*?)<\/tr( |>)/is',$table,$b);
$rows = $b[2];
foreach ($rows as $row) {
    //cycle through each row
    if(preg_match('/<th(>| [^>]*>)(.*?)<\/th( |>)/is',$row)) {
        //match for table headers
        preg_match_all('/<th(>| [^>]*>)(.*?)<\/th( |>)/is',$row,$b);
        $csv[] = strip_tags(implode(',',$b[2]));
    } elseif(preg_match('/<td(>| [^>]*>)(.*?)<\/td( |>)/is',$row)) {
        //match for table cells
        preg_match_all('/<td(>| [^>]*>)(.*?)<\/td( |>)/is',$row,$b);
        $csv[] = strip_tags(implode(',',$b[2]));
    }
}
$csv = implode("\n", $csv);
var_dump($csv);

然后你可以使用file_put_contents()将csv字符串写入文件..

Answer 4

为了扩展已接受的答案,我做了这个,这允许我按类名忽略列,并处理空行/列.

您可以使用str_get_html http://simplehtmldom.sourceforge.net/.只需加入它就可以了!:)

$html = str_get_html($html); // give this your HTML string

header('Content-type: application/ms-excel');
header('Content-Disposition: attachment; filename=sample.csv');

$fp = fopen("php://output", "w");

foreach($html->find('tr') as $element) {
  $td = array();
  foreach( $element->find('th') as $row) {
    if (strpos(trim($row->class), 'actions') === false && strpos(trim($row->class), 'checker') === false) {
      $td [] = $row->plaintext;
    }
  }
  if (!empty($td)) {
    fputcsv($fp, $td);
  }

  $td = array();
  foreach( $element->find('td') as $row) {
    if (strpos(trim($row->class), 'actions') === false && strpos(trim($row->class), 'checker') === false) {
      $td [] = $row->plaintext;
    }
  }
  if (!empty($td)) {
    fputcsv($fp, $td);
  }
}

fclose($fp);
exit;