What is the best way to parse Paypal NVP in PHP?
- by xsaero00
I need a function that will correctly parse NVP into PHP array. I have been using code provided by paypal but it did not work for when string length was specified next to the name.
Here is what i have so far.
private function parseNVP($nvpstr)
{
$intial=0;
$nvpArray = array();
while(strlen($nvpstr))
{
//postion of Key
$keypos= strpos($nvpstr,'=');
//position of value
$valuepos = strpos($nvpstr,'&') ? strpos($nvpstr,'&'): strlen($nvpstr);
/*getting the Key and Value values and storing in a Associative Array*/
$keyval=substr($nvpstr,$intial,$keypos);
$vallength=$valuepos-$keypos-1;
// check if the length is explicitly specified
if($braketpos = strpos($keyval,'['))
{
// override value length
$vallength = substr($keyval,$braketpos+1,strlen($keyval)-$braketpos-2);
// get rid of brackets from key name
$keyval = substr($keyval,0,$braketpos);
}
$valval=substr($nvpstr,$keypos+1,$vallength);
//decoding the respose
if (isValidXMLString("<".urldecode($keyval).">".urldecode( $valval)."</".urldecode($keyval).">"))
$nvpArray[urldecode($keyval)] =urldecode( $valval);
$nvpstr=substr($nvpstr,$keypos+$vallength+2,strlen($nvpstr));
}
return $nvpArray;
}
This function works most of the time.
