带有自定义标头的 fputcsv答案

【问题标题】：fputcsv with custom headers带有自定义标头的 fputcsv
【发布时间】：2014-02-18 10:54:40
【问题描述】：

尝试将以下工作代码转换为 PDO，我遇到的问题是 fputcsv($output,array) 中设置的自定义标题。我真的很想摆脱所有 msql_ 函数，因此我将不胜感激。

<?php
// output headers so that the file is downloaded rather than displayed
header('Content-Type: text/csv; charset=utf-8');
header('Content-Disposition: attachment; filename=collections.csv');

// create a file pointer connected to the output stream
$output = fopen('php://output', 'w');


//MySQL Connect
removed

// output the column headings
fputcsv($output, array('Title','InclusiveDates','CollectionID','LocationID','Content','RangeValue','Section','Shelf','Extent','ExtentUnitID'));

// fetch the data

$rows = mysql_query('SELECT 
coll.title AS CollectionTitle, 
coll.inclusivedates AS InclusiveDates,
coll.ID AS CollectionID, 
collloc.LocationID,
collloc.Content,
collloc.RangeValue,
collloc.Section,
collloc.Shelf,
collloc.Extent,
collloc.ExtentUnitID
FROM tblCollections_Collections coll 
JOIN tblCollections_CollectionLocationIndex collloc 
ON collloc.CollectionID = coll.id 
ORDER BY coll.ID');

// loop over the rows, outputting them
while ($row = mysql_fetch_assoc($rows)) fputcsv($output, $row);

?>

我已经走到了这一步，但没有让它工作。这里的问题是我无法在 CSV 文件中设置自定义列名，它也无法导出到 CSV。

<?php
$conn = removed


$query = "SELECT 
coll.title AS CollectionTitle, 
coll.inclusivedates AS InclusiveDates,
coll.ID AS CollectionID, 
collloc.LocationID,
collloc.Content,
collloc.RangeValue,
collloc.Section,
collloc.Shelf,
collloc.Extent,
collloc.ExtentUnitID
FROM tblCollections_Collections coll 
JOIN tblCollections_CollectionLocationIndex collloc 
ON collloc.CollectionID = coll.id 
ORDER BY coll.ID";
$stmt = $conn->prepare($query);

// Execute the statement
$stmt->execute();

var_dump($stmt->fetch(PDO::FETCH_ASSOC));

$data = fopen('file.csv', 'w');

$header = array();

while ($row = $stmt->fetch(PDO::FETCH_ASSOC))
{
if(empty($header)){ // do it only once!
  $header = array_keys($row); // get the columnnames
  fputcsv($data, $header); // put them in csv
}

echo "Success";
// Export every row to a file
fputcsv($data, $row);
}
?>

【问题讨论】：

问题与PDO/mysql有什么关系？在两个脚本中涉及 csv 文件时，您正在做根本不同的事情。
不，我只是无法使用 PDO 而不是 mysql_ 产生相同的结果。 :-(
你怎么知道的？你已经改变了很多，并且正在输出到不同的媒体，很难判断问题出在哪里。您应该从 just 切换到 PDO 开始，并在该逻辑正常工作时更改其他逻辑。
如果我错了，请纠正我，但你不必fclose文件吗？
PDO的输出与mysql_的输出相同，即关联数组。因此，从一个更改为另一个应该很简单。 PS因为你没有使用绑定参数，你可以使用query()而不是prepare()

标签： php mysql csv pdo

【解决方案1】：

这是我想出的，它似乎和原来的一样有效。如果您有任何疑问，请告诉我，它按预期工作，我摆脱了 mysql_ 函数。

<?php

header('Content-Type: text/csv; charset=utf-8');
header('Content-Disposition: attachment; filename=collections.csv');

try {
$conn = removed
  }
catch(PDOException $e)
{
echo $e->getMessage();
}

$sql = "SELECT 
coll.title AS CollectionTitle, 
coll.inclusivedates AS InclusiveDates,
coll.ID AS CollectionID, 
collloc.LocationID,
collloc.Content,
collloc.RangeValue,
collloc.Section,
collloc.Shelf,
collloc.Extent,
collloc.ExtentUnitID
FROM tblCollections_Collections coll 
JOIN tblCollections_CollectionLocationIndex collloc 
ON collloc.CollectionID = coll.id 
ORDER BY coll.ID";

$results = $conn->query($sql);

// Pick a filename and destination directory for the file
// Remember that the folder where you want to write the file has to be writable
$filename = "collections.csv";

// Actually create the file
// The w+ parameter will wipe out and overwrite any existing file with the same name
$handle = fopen('php://output', 'w');

// Write the spreadsheet column titles / labels
fputcsv($handle,   array('Title','InclusiveDates','CollectionID','LocationID','Content','RangeValue','Section','Shelf','Extent','ExtentUnitID'));

// Write all the user records to the spreadsheet
foreach($results as $row)
{
fputcsv($handle, array($row['CollectionTitle'], $row['InclusiveDates'], $row['CollectionID'], $row['LocationID'], $row['Content'], $row['RangeValue'], $row['Section'], $row['Shelf'], $row['Extent'], $row['ExtentUnitID']));
}

// Finish writing the file
fclose($handle);

?>

【讨论】：