string conversion to array by commaseparated using php - php

Question

I am fetching values from online using curl from given url working fine, but here the problem is, giving combined string like - first url had one value returning and next url returning with 5 values so total six values displaying as like this, "testdata1testdata2testdata3testdata4testdata5testdata6testdata7" i need to insert these data to mysql it is storing like string how to separate by comma.
function data($urls,$v)
{
foreach ($urls as $url => $key)
{
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $key);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, 20);
curl_setopt($curl, CURLOPT_USERAGENT, $useragent);
$str = curl_exec($curl);
curl_close($curl);
$html= str_get_html($str);
foreach($html->find('.name') as $element)
{
$grab = $element->innertext;
$sql = $this->db->prepare("UPDATE table SET word='$grab' where url='$v[$url]'");
}
}
}

Answer 1

UPDATE
You wrote in comments, that there are no numbers in the variables past. In that case it is impossible to guess where the delimeters should be unless you know i.e.
the size of each parameter (maybe it is constant?)
have got array of ALL possible variables?
know something more about the variables structure?
If You don't, the answer is: You can't, sorry. As Shah Rukh suggested in comments, try to use i.e. json to pass the parameters to another page / subpage / script.
If every variable is ended with a number, you can try this solution:
(I assumed that every variable passed is ended up with a number, so You must be really careful and be sure that this is the exact format, that the data will always be sent in).
function every($matches) {
return $matches[1].',';
}
$input = 'testdata1testdata2testdata3testdata4testdata5testdata6testdata7';
$input = preg_replace_callback( "|(\d+)|", "every", $input);
$input = explode(',', rtrim($input, ","));
print_r($input);
Will print out:
Array
(
[0] => testdata1
[1] => testdata2
[2] => testdata3
[3] => testdata4
[4] => testdata5
[5] => testdata6
[6] => testdata7
)
I hope it helps, however I think that you should change some logic of your application, and send the data between pages in a more user friendly format as json for example. Best regards!
PS. If You want to get rid of "test", you can do for example:
foreach ($input as $key => $value) $input[$key] = substr($value, 4);
But remember to be careful when modifying arrays at the same time you are iterating them through.