php 定时输出

I hope this code will help somebody to solve the problem of not being able to flush or output the buffer to the browser (I use IE7).
It may work for you with just [ echo str_repeat(".", 4096); ] and without even using ob_... and flush.

<?php
ob_start();

ob_implicit_flush(true);
//[ OR ] echo "..."; ob_flush(); flush();

set_time_limit(0);

function sleep_echo($secs) {
    $secs = (int) $secs;
    $buffer = str_repeat(".",4096);
    //echo $buffer."\r\n<br />\r\n";
    for ($i=0;$i<$secs;$i++) {
        echo date("H:i:s",time())." (".($i+1).")"."\r\n<br />\r\n".$buffer."\r\n<br />\r\n";
        ob_flush();
        flush();
        sleep(1);
        //usleep(1000000);
    }
}

sleep_echo(30);

ob_end_flush();
?>