Getting data from mysql and creating a csv file issue - php

Question

I want to extract some data and create a csv file. This is how my attributes table looks like. you can see it in the picture:
HERE
This is my code, what i tried:
$select = mysql_query("select * from attributes");
$final ="";
$i = 0;
while($row = mysql_fetch_array($select)) {
$id_produs = $row['id_produs'];
$n_attr = $row['nume_attr'];
$val = $row['val_attr'];
$final .= $id_produs . "%%" . $val . "%%";
$csv_array_attributes[$i] = $final;
$i++;
}
This is the part when i create the CSV file:
$file = fopen("attributes.csv", "w+");
foreach ($csv_array_attributes as $line) {
fputcsv($file, explode('%%', $line), "^", "`");
}
fclose($file);
AND this would be the wanted result: HERE. So, the nume_attr should be the header for every column in the csv and the val_attr should be the values for every nume_attr (see the image).
I tried many ways but I don't get this result from the image. I have to mention that my table "attributes" has more than 74000 rows.
This is the table structure:
CREATE TABLE `attributes` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`id_produs` text NOT NULL,
`nume_attr` text NOT NULL,
`val_attr` text NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=673912 DEFAULT CHARSET=latin1;

Answer 1

/*Try following code */
$select = mysql_query("select * from attributes");
$i = 0;
$csv_array_attributes[$i]=array('sku','manufacturer_article','manufacturer');
$i++;
while($row = mysql_fetch_array($select)) {
$csv_array_attributes[$i] =array('sku'=>$row['id_produs'],'manufacturer_article'=>$row['nume_attr'],'manufacturer'=>$row['val_attr']);
$i++;
}
$file = fopen("attributes.csv", "w+");
foreach ($csv_array_attributes as $line) {
fputcsv($file,$line);
}
fclose($file);

Answer 2

Let's assume speed isn't the issue here and neither is concurrency, i.e. you just want the result now no matter how good, bad or ugly the solution is ;-)
First query all the attribute names via SELECT DISTINCT nume_attr FROM attributes
Store those names as keys of an array with empty string values, i.e. you should have an array like
$template = array(
'Manufacturer Article' => '',
'Manufacturer' => '',
...
)
Make a variable that stores the currently processed id_produs (start with false).
Make a variable that stores the current "csv"-record ( again start with false )
Query all records ordered by id_produs and iteratore over the result.
If the current record has a different id_produs than the "currently processed" write out the current "csv"-array and start anew with the template array created in the first step and the current id_produs as ...the current id_produs. For each record write the val_attr value to the key nume_attr in the csv array.
You will have to check/write the last record after the iteration.

Answer 3

/* try following code,and reply if it will helpful to you or not */
$select = mysql_query("select * from attributes");
$i = 0;
$i++;
while($row = mysql_fetch_array($select)) {
$csv_array_attributes[$row['id_produs']][$row['nume_attr']] =$row['val_attr'];
$i++;
}
$arraytempheader=array();
$arraytemp=array();
$arraytempheader[0]="";
$j=1;
foreach ($csv_array_attributes as $Colname=>$alline) {
if($j!=1)
{
foreach($arraytempheader as $key=>$val)
{
if($key!=$j && $key!=0)
$arraytemp[$Colname][$key]="";
}
}
foreach ($alline as $keyline=>$valline)
{
$arraytempheader[$j]=$keyline;
$arraytemp[$Colname][$j]=$valline;
$j++;
}
}
$file = fopen("attributes.csv", "w+");
fputcsv($file,$arraytempheader);
foreach ($arraytemp as $Colname=>$alline) {
$finalArray=array();
$finalArray[]=$Colname;
$finalArray=array_merge($finalArray,$alline);
fputcsv($file,$finalArray);
}
fclose($file);

Answer 4

Try to fix this in other way.
Here you select the attributes and store them into array
$select = mysql_query("select * from attributes");
$rezultat=array();
while($row = mysql_fetch_array($select)) {
$id_produs = $row['id_produs'];
$n_attr = $row['nume_attr'];
$val = $row['val_attr'];
//$final .= $id_produs . "%%" . $val . "%%";
$rezultat[] = array('id'=>$id_produs,'attr'=>$val);
}
And here you write them to the file.
$file = fopen("attributes.csv", "w+");
foreach ($rezultat as $line) {
fputcsv($file, $line, "^", "`");
}
fclose($file);