How do I ensure I caught all errors from MySQLi::multi_query?

Question

The docs for multi_query say:

Returns FALSE if the first statement failed. To retrieve subsequent errors from other statements you have to call mysqli

Answer 1

Bill Karwin's answer doesn't look very eloquent to me. It seems strange to write separate conditional breaks when the do while loop is already setup to handle breakpoints.

I haven't tested the following snippet, but you should be able to access the necessary results and errors from it:

$queries["CURRENT_USER"]="SELECT CURRENT_USER()";
$queries["CITY_NAME"]="SELECT Name FROM City ORDER BY ID LIMIT 20, 5";

if(mysqli_multi_query($mysqli,implode(';',$queries))){
    do{
        list($current_table,$current_query)=each($queries);
        if($current_table!="CURRENT_USER"){
            printf("-----------------\n");
        }
        if($result=mysqli_store_result($mysqli)){
            if(mysqli_num_rows($result)<1){
                echo "
Logic Error @ $current_table Query
$current_query
";
            }else{
                while($row=mysqli_fetch_row($result)){
                    printf("%s\n",$row[0]);
                }
            }
            mysqli_free_result($result);
        }
    } while(mysqli_more_results($mysqli) && mysqli_next_result($mysqli));
}else{
    list($current_table,$current_query)=each($queries);
}
if($error=mysqli_error($mysqli)){
    echo "
Syntax Error @ $current_table Query
$current_query
Error: $error
";
}