Advice on how to explode a string

[tony_l]

We have a database that has a field called "response". This field contains a bunch of lines like this -

x_trans_id=1234567
x_response_code=true
x_idnum=7458393
x_amount=95.00

We need to extract each line from this field and place them into an array. More specifically we need to pull out the x_trans_id field. Sometimes there are many parameters listed, sometimes only a few are listed, ommitng the x_trans_id.

I tried parse_str($string, $dataArray);, but that put everything under one key in the array.

How do you go about "tokenizing" a string into an array delimited by lines?

Any help would be appreciated.

🙂

[NogDog]

If all you want is the one value (if it exists), I'd probably do:

if(preg_match('/\bx_trans_id=(\d+)\b/', $field, $matches))
{
   $x_trans_id = $matches[1];
}
else
{
   // whatever you want to do if no x_trans_id in that field
}