php - 从 MySQL 创建 Excel 文件

Question

我正在尝试从 MySQL DB 中的表生成 XLS 文件，但 Excel 文件格式不正确并且在生成 Excel 文件时出现错误“您尝试打开的文件的格式不同于一个文件指定的”。打开文件时，数据格式不正确。

知道我遗漏了什么吗？

<?php
$host = 'XXXXXXX';
$dbname = 'XXXXXXXX';
$username = 'XXXXXXXX';
$password = 'XXXXXXXX';

function xlsBOF() {
    echo pack("ssssss", 0x809, 0x8, 0x0, 0x10, 0x0, 0x0);
    return;
}

function xlsEOF() {
    echo pack("ss", 0x0A, 0x00);
    return;
}

function xlsWriteLabel($Row, $Col, $Value ) {
    $L = strlen($Value);
    echo pack("ssssss", 0x204, 8 + $L, $Row, $Col, 0x0, $L);
    echo $Value;
    return;
}

function xlsWriteNumber($Row, $Col, $Value) {
    echo pack("sssss", 0x203, 14, $Row, $Col, 0x0);
    echo pack("d", $Value);
    return;
}

try {
    $conn = new PDO("mysql:host=$host;dbname=$dbname", $username, $password);
    echo "Connected to $dbname at $host successfully.";
    $conn = null;
} catch (PDOException $pe) {
    die("Could not connect to the database $dbname :" . $pe->getMessage());
}

$q = "SELECT * FROM tablename";
$qr = mysql_query( $q ) or die( mysql_error() );

header("Pragma: public");
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Content-Type: application/force-download");
header("Content-Type: application/octet-stream");
header("Content-Type: application/download");

header("Content-Disposition: attachment;filename=export_".$dbtable.".xls ");

header("Content-Transfer-Encoding: binary ");

xlsBOF();

$col = 0;
$row = 0;

$first = true;

while( $qrow = mysql_fetch_assoc( $qr ) )
{
    if( $first )
    {
      foreach( $qrow as $k => $v )
      {
        xlsWriteLabel( $row, $col, strtoupper( ereg_replace( "_" , " " , $k ) ) );
        $col++;
      }

      $col = 0;
      $row++;
      $first = false;
    }

    // go through the data
    foreach( $qrow as $k => $v )
    {
      // write it out
      xlsWriteLabel( $row, $col, $v );
      $col++;
    }
    // reset col and goto next row
    $col = 0;
    $row++;
}

xlsEOF();
exit();

Answer 1

我不确定 .xls，但为了将 MySQL 结果输出为 CSV 表，fputcsv 函数毫不费力地完成了它:

// Clear any previous output
ob_end_clean();
// I assume you already have your $result
$num_fields = mysql_num_fields($result);

// Fetch MySQL result headers
$headers = array();
$headers[] = "[Row]";
for ($i = 0; $i < $num_fields; $i++) {
    $headers[] = strtoupper(mysql_field_name($result , $i));
}

// Filename with current date
$current_date = date("y/m/d");
$filename = "MyFileName" . $current_date . ".csv";

// Open php output stream and write headers
$fp = fopen('php://output', 'w');
if ($fp && $result) {
    header('Content-Type: text/csv');
    header('Content-Disposition: attachment; filename='.$filename);
    header('Pragma: no-cache');
    header('Expires: 0');
    echo "Title of Your CSV File\n\n";
    // Write mysql headers to csv
    fputcsv($fp, $headers);
    $row_tally = 0;
    // Write mysql rows to csv
    while ($row = mysql_fetch_array($result, MYSQL_NUM)) {
    $row_tally = $row_tally + 1;
    echo $row_tally.",";
        fputcsv($fp, array_values($row));
    }
    die;
}