[snip]
But in the rest of the script I can't find where they declare and fill
this array.
[/snip]
The subscriber array is filled by the query. Since PHP is not a strongly
typed language there is no need to declare the array.
$sql = "SELECT `foo`, `bar` FROM `customers` WHERE `status` = 'active'";
/*run the query, testing as we go*/
if(!($result = mysql_query($sql, $connection_string))){
echo "MySQL reports an error " . mysql_error() . "\n";
exit();
}
/*if the query worked the $result 'holds' the info*/
while ( $subscriber = mysql_fetch_row($result)){
echo $subscriber[0]."\t"; should have info from foo column
echo $subscriber[1]."\n"; should have info from bar column
}
When mysql_fetch_row($result) returns FALSE the while loop exits.
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