Error while fetching more than 1000 mysql records

Question

I'm trying to fetch data from a MySQL database through PHP to a Flex application. When there are more than 1000 records in the resultset, the FaultEvent is returned. When I limit it to 1000 records, no problem at all. Any ideas? Code below:
public function OldCustomerService(method:String=HTTPRequestMessage.POST_METHOD, resultFormat:String=RESULT_FORMAT_E4X, showBusyCursor:Boolean=true)
            super(null, null);
            this.requestTimeout = 0;
            this.method = method;
            this.resultFormat = resultFormat;
            this.showBusyCursor = showBusyCursor;
        public function getAllProspects():void {
            this.url = ALL_PROSPECTS_URL;
            this.addEventListener(ResultEvent.RESULT, getAllProspectSuccess);
            this.addEventListener(FaultEvent.FAULT, DAOUtil.communicationError);
            var oldCustomersToken:AsyncToken = this.send();

Answer 1

It works with fewer records so it would be weird if it would be a php or mysql error. Seems to me Flex isn't waiting until everything is in. To give you a better idea of what's happening, I'll post the PHP code:
<?php
* Created on 19-mrt-10
* To change the template for this generated file go to
* Window - Preferences - PHPeclipse - PHP - Code Templates
     include '../../application/general/php/general.php';
     // connect to the database
     $mysql = mysql_connect(DATABASE_SERVER, DATABASE_USERNAME, DATABASE_PASSWORD) or die(mysql_error());
    // select the database
    mysql_select_db( DATABASE_NAME );
    // query the database to retrieve all customers.
    $query = "SELECT * FROM stores";
    $result = mysql_query($query);
    //start outputting the XML
    $output = "<result>";
    if($result) {
        $output .= "<success>yes</success>";
        $output .= "<stores>";
        // create a store tag for each retrieved store
        while($customer = mysql_fetch_object($result)) {
            $output .= "<store>";
            $output .= "<naam>$customer->naam</naam>";
            $output .= "<adres>$customer->adres</adres>";
            $output .= "<postc>$customer->postc</postc>";
            $output .= "<wpl>$customer->wpl</wpl>";
            $output .= "<land>$customer->land</land>";
            $output .= "<telprive>$customer->telprive</telprive>";
            $output .= "<telbureau>$customer->telbureau</telbureau>";
            $output .= "</store>";
        $output .= "</stores>";
    } else {
        $output .= "<success>no</success>";
        $output .= "<error>\n";
        $output .= "Reason: " . mysql_error() . "\n";
        $output .= "Query: " . $query ."\n";
        $output .= "</error>";
    $output .= "</result>";
    print ($output);
    mysql_close();
?>
When the error occurs, I get a <success>yes</success> and yet again the Fault error is thrown. Again, with fewer records, no problem.