PHP comma separated string array Export to csv

Question

im writing a script to download a csv,

the form i using to send data server like below,

(the value of hidden field has domain name,namerserver1,namerserver2,namerserver3,namerserver4) some have domain name and not have ns data

<form class="dmns2" method="post">
<input type="hidden" value="wiseowldating.co.uk,ns.nothard.net,ns2.nothard.net,ns3.nothard.net" name="nsv[]" />
<input type="hidden" value="willow.nothard.net.zz" name="nsv[]" />
<input type="hidden" value="welditz.com,ns.nothard.net,ns2.nothard.net,ns3.nothard.net," name="nsv[]" />
<input type="submit" id="btnsubmit"  value="CSV Export"/>
</form>

I'm getting those values on php like below

if(isset($_POST['nsv'])){
foreach($_POST['nsv'] as $val){
    echo $val.'<br/>';
    }
exit(0);
}

the records are showing correctly as below

wiseowldating.co.uk,ns.nothard.net,ns2.nothard.net,ns3.nothard.net,
willow.nothard.net.zz,
welditz.com,ns.nothard.net,ns2.nothard.net,ns3.nothard.net,

but i want export this output to a csv files as this format

Doman                 nameserver1    nameserver2     nameserver3     nameserver4 nameserver5
wiseowldating.co.uk   ns.nothard.net ns2.nothard.net ns3.nothard.net
willow.nothard.net.zz
welditz.com           ns.nothard.net ns2.nothard.net ns3.nothard.net

this code is working, thanks for help

$fp = fopen("nsdata.csv", "w");
$row=array('Domain','NS1','NS2','NS3','NS4');
fputcsv($fp, $row);
foreach($_POST['nsv'] as $val){
    $ar=explode(',',$val);
    fputcsv($fp,$ar);
}
fclose($fp);

can anyone help me to do this using php please, i appreciate your help. thank you

Answer 1

Your order of arguments to the explode() function is wrong

And '\t' is not the same as "\t"

And you're missing the "\t" when you write your headers as well

$fp = fopen("nsdata.csv", "w");
$row = array('Domain','NS1','NS2','NS3','NS4');
fputcsv($fp, $row, "\t");
foreach($_POST['nsv'] as $val){
    $ar=explode(',', $val);
    fputcsv($fp, $ar, "\t");
}
fclose($fp);

Answer 2

you should try tabulator as separator

fputcsv($fp, $foo, chr(9));