replace comma between double quotes using preg_replace [duplicate]

Answer 1

$string = '1100225,Lakshmin,pkrrrr College,"PKRRRRR University, Choice",nandhaaaaa,"Nandhaa University, Kumali"';

$string = preg_replace_callback(
        '|"[^"]+"|',
        create_function(
            // single quotes are essential here,
            // or alternative escape all $ as \$
            '$matches',
            'return str_replace(\',\',\'*comma*\',$matches[0]);'
        ),$string );
$array = explode(',',$string);
$array = str_replace('*comma*',',',$array);
print_r($array);       
exit;