Need Help on Export SQL to CSV through PHP - php

Question

I have this PHP script which is supposed to take an SQL Query and output it to a CSV file, I know that when I run it i'm getting the right Statement put in but it does not seem to generate a file to my uploads folder.
Could anyone debug this for me?
<?php
function ExportExcel($statement)
{
$filename = "uploads/".strtotime("now").'.csv';
$sql = mysql_query("$statement") or die(mysql_error());
$num_rows = mysql_num_rows($sql);
if($num_rows >= 1)
{
$row = mysql_fetch_assoc($sql);
$fp = fopen($filename, "w");
$seperator = "";
$comma = "";
foreach ($row as $name => $value)
{
$seperator .= $comma . '' .str_replace('', '""', $name);
$comma = ",";
}
$seperator .= "\n";
fputs($fp, $seperator);
mysql_data_seek($sql, 0);
while($row = mysql_fetch_assoc($sql))
{
$seperator = "";
$comma = "";
foreach ($row as $name => $value)
{
$seperator .= $comma . '' .str_replace('', '""', $value);
$comma = ",";
}
$seperator .= "\n";
fputs($fp, $seperator);
}
fclose($fp);
echo "<a href='$filename'>Download</a>";
echo $statement;
}
else
{
echo "error";
}
}
?>
If someone has a similar script that uses mysqli that would be nice

Answer 1

here is a example of a export script I use on my apps using MySqli. This will get you started...
<?php
function ExportExcel($statement){
$output = "";
$sql = mysqli_query($db , $statement);
$columns_total = mysqli_num_fields($sql);
// Get The Field Name
for ($i = 0; $i < $columns_total; $i++) {
$heading = mysqli_fetch_field_direct($sql, $i);
$output .= '"'.$heading->name.'",';
}
$output .="\n";
// Get Records from the table
while ($row = mysqli_fetch_array($sql)) {
for ($i = 0; $i < $columns_total; $i++) {
$output .='"'.$row["$i"].'",';
}
$output .="\n";
}
// Download the file
$filename = "CSV_NAME_GOES_HERE.csv";
header('Content-type: application/csv');
header('Content-Disposition: attachment; filename='.$filename);
echo $output;
exit;
}
?>