Question

Does the php’s echo wait to send data to the screen, until the rest of the script is complete?

So if I have:

<?

echo "Hello World";

$xmlData = file_get_cotents("www.webpage.com");

        $myFile = "data_backup.xml";
        $fh = fopen($myFile, 'w') or die("can't open file");
        $stringData =  $xmlData;
        fwrite($fh, $stringData);
        fclose($fh);
?>

So does the above sample what to show Hello World until the contents from the url are retrived and saved locally?

Answer 1

Yep. unless you flush the data with flush();