$re = '/jsonp\.php\?([^"]+)/';
$str = '$.getJSON("http://www.foo.com/jsonp.php?scode=1459256535&artist=bar tar zar&alb=Album&repeat=list&autostart=true&sw=", (function(data)';
preg_match($re, $str, $matches, PREG_OFFSET_CAPTURE, 0);
// Print the entire match result
var_dump($matches);
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for PHP, please visit: http://php.net/manual/en/ref.pcre.php