<?php

include ('inc/connect.php');
//define the table that you want to pull data from
$table = "table_name";
//define the variables for your query
$query_variables = $_POST['id'];
//build your dynamic query
$query = "SELECT * FROM `".$table."` WHERE ".$query_variables."";
$result = mysql_query("SHOW COLUMNS FROM ".$table."");
$i = 0;

if (mysql_num_rows($result) > 0) {

while ($row = mysql_fetch_assoc($result)) {
$csv_output .= $row['Field'].", ";
$i++;
}
}
$csv_output .= "\n";
$values = mysql_query("$query");

while ($rowr = mysql_fetch_row($values)) {

for ($j=0;$j<$i;$j++) {
$csv_output .= $rowr[$j].", ";
}
$csv_output .= "\n";
}
$filename = $file."_".date("Y-m-d_H-i",time());
header("Content-type: application/vnd.ms-excel");
header("Content-disposition: csv" . date("Y-m-d") . ".csv");
header( "Content-disposition: filename=".$filename.".csv");
print $csv_output;
exit;
?>