Converting delimited string to multiple values in mysql

Question

I have a mysql legacy table which contains an client identifier and a list of items, the latter as a comma-delimited string. E.g. \"xyz001\", \"foo,bar,baz\". T

Answer 1

I really wanted to get this to work using SQL but was unable to. I wrote this quick PHP script to do the job.

It's quick and dirty and NOT how I would ever recommend doing production code. But sometimes you do what it takes to get the job done quick.

".mysql_error();
    exit;
}

$applications = array();
while($row = mysql_fetch_array($result)){
    echo "
".$row[$pri_column];
    $topics = explode(",", $row[$column]);
    foreach($topics as $topic){
        $topic = trim($topic);
        $applications[$row[$pri_column]][$topic] = $topic;
    }
    echo "
".$row[$column];
}
echo "
";
print_r($applications);
echo "
";

foreach($applications as $app => $topics){
    foreach($topics as $topic){
        $query = "insert into ".$newTable." values ('', \"".$app."\", \"".$topic."\")";
        echo "
".$query;
        mysql_query($query);
        if(mysql_errno()){
            echo "
".mysql_error();
        }
    }
}
?>