Export wordpress table to excel

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I have created PHP scripts before to export a database table to .xls format like this:

$select = "SELECT * FROM tracking";
$export = mysql_query ( $select ) or die ( "Sql error : " . mysql_error( )  );
$fields = mysql_num_fields ( $export );
$file="export";
for ( $i = 0; $i < $fields; $i++ )
{
$header .= mysql_field_name( $export , $i ) . "\t";
}
while( $row = mysql_fetch_row( $export ) )
{
$line="";
foreach( $row as $value )
{
    if ( ( !isset( $value ) ) || ( $value == "" ) )
    {
        $value = "\t";
    }
        else
    {
        $value = str_replace( '"' , '""' , $value );
        $value=""" . $value . '"' . "\t";
    }
        $line .= $value;
 }
 $data .= trim( $line ) . "\n";
 }
 $data = str_replace( "\r" , "" , $data );
 if ( $data == "" )
 {
 $data = "\n(0) Records Found!\n";
 }

$filename = $file."_".date("M-d-Y");

header("Content-type: application/octet-stream");
header( "Content-disposition: filename=".$filename.".xls");
header("Pragma: no-cache");
header("Expires: 0");
print "$header\n$data";

What I’d like to know is how to “convert” this to wordpress format using the $wpdb class? I can get the initial query down to actually select the data from the table I want, but I get lost in some of the semantics of the wpdb class. I also wanted to know where I would put this code in wordpress, so if say a user clicks on a link, it would run this query and download the .xls file?

Any help is greatly appreciated! This site is great!

5 Answers
5

Why not use the SELECT INTO OUTFILE syntax:

$wpdb->query("SELECT * INTO OUTFILE '/path/to/file' 
 FIELDS TERMINATED BY '\t' 
 LINES TERMINATED BY '\n' 
 FROM tracking");

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