在PHP中将MySQL数据导出为CSV

Question

In my code, I need to preserve all commas in each fields from the mysql table in CSV Export...

For this I used the double quotes to all fields. This code is perfectly running in the Linux System.. While running the same code in windows, double quotes also displaying in Exported CSV file.. What is the problem in this? can anyone tell me why it is happening like this?

    function  arrayToCSV($array, $header_row = true, $col_sep = ",", $row_sep = "\n", $qut = '"',$pgeTyp ="")
    {
    /*col_sep =htmlentities($col_sep);
    $row_sep =htmlentities($row_sep);
    $qut =htmlentities($qut);*/
    if (!is_array($array) or !is_array($array[0])) return false;
    //Header row.
    if ($header_row)
    {
    foreach ($array[0] as $key => $val)
    {
    //Escaping quotes.
    $key = str_replace($qut, "$qut$qut", $key);
    $output .= $col_sep.$qut.$key.$qut;
    }
    $output = substr($output, 1)."\n".$row_sep;
    }
    //Data rows.
    foreach ($array as $key => $val)
    {
    $tmp = '';

    foreach ($val as $cell_key => $cell_val)
    {  
    if($pgeTyp!="twitter" && $pagTyp!="jigsaw" && $pgeTyp=="")
    $timeValue = @checkTimeStamp($cell_val);
    else  $timeValue = '';
    if($timeValue=="True")
    {
    $cell_val = str_replace($qut, "$qut$qut", convert_time_zone($cell_val,'d-M-y h:i:s'));
    }
    else
    {
    $cell_val = str_replace($qut, "$qut$qut", $cell_val);
    }

    $tmp .= $col_sep.$qut.$cell_val.$qut;
    }
    $output .= substr($tmp, 1).$row_sep;
    }
    return $output;
    }

Function call is,

$dbResult1[] =array('url_twitter_userid' => $selecttwittermainFtch['url_twitter_userid'],'url_tweet_name' => "$url_tweet_name",'url_twitter_uname' => "$url_twitter_uname",'url_twitter_url' => $selecttwittermainFtch['url_twitter_url'],'url_twitter_location' => "$url_twitter_location",'url_twitter_followers' => $selecttwittermainFtch['url_twitter_followers'],'url_twitter_following' => $selecttwittermainFtch['url_twitter_following'],'url_modified_on' => $modifiedon);   
echo arrayToCSV($dbResult1, true, ", ", "\n",  '','twitter');                 

Answer 1

Try this:

function sqlQueryToCSV($filename, $query)
{
    $result = mysql_query($query);
    $num_fields = mysql_num_fields($result);
    $headers = array();
    for ($i = 0; $i < $num_fields; $i++) {
            $headers[] = mysql_field_name($result , $i);
    }
    $fp = fopen(mysql_real_escape_string(getcwd().'\\'.$filename), 'w');
    if ($fp) {
 fputcsv($fp, $headers);
 while ($row = mysql_fetch_array($result)) {
     $arrayValues = array();
     foreach ($headers as $header)
     {
         $arrayValues[] = $row[$header];
     }
     fputcsv($fp, $arrayValues);
 }
    }
    fclose($fp);
}

Source: http://forums.exchangecore.com/topic/907-function-to-convert-mysql-query-to-csv-file-with-php/

Answer 2

When you are opening it in Windows with whatever program (Guessing Excel), you should be able to specify what characters you use to delimit/surround the fields. It's probably just assuming that you are just wanting to use commas to separate but ignoring the double quotes surrounding them.