在函数外重用变量？

Question

How can I use return the $row array in the below example, so that I can re-use the variable outside of this function?

I manage to echo the information inside the function using $row['columnName'], but various combinations of global and $GLOBALS, return $xyz and getting variable scope to work for me has me a bit out of my depth. Any answers please?

<?php
function getInfo() {

    $query = /* Some SQL Query */;

    $result = mysql_query($query); 

    if($result == false) 
    { 
       user_error("Query failed: " . mysql_error() . "<br />
$query"); 
    } 
    elseif(mysql_num_rows($result) == 0) 
    { 
       echo "<p>Sorry, no rows were returned by your query.</p>
"; 
    } 
    else 
    { 
    while ($row = mysql_fetch_assoc($result)) {
        /* What goes here? */
        }
    } 

}
?>

Answer 1

Just return it from your function:

$results = array();
while ($row = mysql_fetch_assoc($result)) {
    $results[] = $row;    // or do something more with the row
}
return $results;

and call your function like:

$query_results = getInfo();