Solution to display on a web page each second a new line wanted

Stefan Mueller

Hallo

I'm looking for a solution to display on a web page each second a new
line.
Unfortunately does the following solution not work with the Internet
Explorer:

http://test.seekware.ch/test/flush-withtable.php

PHP code:
<html>
<head>
<?php
header("cache-control: no-cache");
header("pragma: no-cache");
?>
</head>

<body>
<?php
echo "<table border = '1'>";

for ($counter = 0; $counter <= 5; $counter++) {
echo "<tr><td>" . $counter . "<br></td></tr>";

ob_flush();
flush();
sleep(1);
}

echo "</table>";
?>
</body>
</html>
Even if I do it without a table it does not work with the Internet
Explorer:

http://test.seekware.ch/test/flush-notable.php

PHP code:
<html>
<head>
<?php
header("cache-control: no-cache");
header("pragma: no-cache");
?>
</head>

<body>
<?php
for ($counter = 0; $counter <= 5; $counter++) {
echo $counter . "<br>";

ob_flush();
flush();
sleep(1);
}
?>
</body>
</html>
Does someone know a solution which works also with the Internet
Explorer?

Regards
Stefan

PS: Both solutions work with Mozilla and Opera.

Aug 3 '08 #1

Subscribe Reply

1754

Sjoerd

On 3 aug, 03:12, Stefan Mueller <seekw...@yahoo .comwrote:

Hallo

I'm looking for a solution to display on a web page each second a new
line.

There are two typical solutions for this:
1) You use Javascript to retrieve a new line every second, AJAX style.
2) You output a page which reloads itself every second and pass a new
line to it each time.

* * * * * for ($counter = 0; $counter <= 5; $counter++) {
* * * * * * echo $counter . *"<br>";

* * * * * * ob_flush();
* * * * * * flush();
* * * * * * sleep(1);
* * * * * }

Interesting approach. What you do is send the first part of the page
to the client, wait a second, send another line, etc. The call to
sleep(1) makes the server wait before outputting anything else. So the
webbrowser does not receive the whole page until all lines have been
printed. The browser may wait until it has received the whole page
before rendering it (as IE does).

PS: Both solutions work with Mozilla and Opera.

This is because they try to render the page while it has not been
fully retrieved yet, but you can not really depend on this.

Aug 3 '08 #2

Jerry Stuckle

Stefan Mueller wrote:

Hallo

I'm looking for a solution to display on a web page each second a new
line.
Unfortunately does the following solution not work with the Internet
Explorer:

http://test.seekware.ch/test/flush-withtable.php

PHP code:
<html>
<head>
<?php
header("cache-control: no-cache");
header("pragma: no-cache");
?>
</head>

<body>
<?php
echo "<table border = '1'>";

for ($counter = 0; $counter <= 5; $counter++) {
echo "<tr><td>" . $counter . "<br></td></tr>";

ob_flush();
flush();
sleep(1);
}

echo "</table>";
?>
</body>
</html>
Even if I do it without a table it does not work with the Internet
Explorer:

http://test.seekware.ch/test/flush-notable.php

PHP code:
<html>
<head>
<?php
header("cache-control: no-cache");
header("pragma: no-cache");
?>
</head>

<body>
<?php
for ($counter = 0; $counter <= 5; $counter++) {
echo $counter . "<br>";

ob_flush();
flush();
sleep(1);
}
?>
</body>
</html>
Does someone know a solution which works also with the Internet
Explorer?

Regards
Stefan

PS: Both solutions work with Mozilla and Opera.

Yes, it might work in some browsers and not others. What should happen
in this case is undefined and browsers are left to their own devices on
how to implement it.

As Sjoerd indicated, AJAX can do it. Flash and Java applets can also do it.

--
=============== ===
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
js*******@attgl obal.net
=============== ===

Aug 3 '08 #3

Jeff North

On Sat, 2 Aug 2008 18:12:38 -0700 (PDT), in comp.lang.php Stefan
Mueller <se******@yahoo .com>
<67************ *************** *******@k37g200 0hsf.googlegrou ps.com>
wrote:

>| Hallo
|
| I'm looking for a solution to display on a web page each second a new
| line.
| Unfortunately does the following solution not work with the Internet
| Explorer:
|
| http://test.seekware.ch/test/flush-withtable.php
|
| PHP code:
| <html>
| <head>
| <?php
| header("cache-control: no-cache");
| header("pragma: no-cache");
| ?>
| </head>
|
| <body>
| <?php
| echo "<table border = '1'>";
|
| for ($counter = 0; $counter <= 5; $counter++) {
| echo "<tr><td>" . $counter . "<br></td></tr>";
|
| ob_flush();
| flush();
| sleep(1);
| }
|
| echo "</table>";
| ?>
| </body>
| </html>
|
|
| Even if I do it without a table it does not work with the Internet
| Explorer:
|
| http://test.seekware.ch/test/flush-notable.php
|
| PHP code:
| <html>
| <head>
| <?php
| header("cache-control: no-cache");
| header("pragma: no-cache");
| ?>
| </head>
|
| <body>
| <?php
| for ($counter = 0; $counter <= 5; $counter++) {
| echo $counter . "<br>";
|
| ob_flush();
| flush();
| sleep(1);
| }
| ?>
| </body>
| </html>
|
|
| Does someone know a solution which works also with the Internet
| Explorer?
|
| Regards
| Stefan
|
| PS: Both solutions work with Mozilla and Opera.

You could also try the meta+refresh HTML instruction:
<head>
<META HTTP-EQUIV=Refresh CONTENT="10; URL=http://www.htmlhelp.co m/">
<META HTTP-EQUIV=Refresh CONTENT="10">
</head>

tells the browser to load http://www.htmlhelp.com/ 10 seconds
after the current document has finished loading. Not all browsers
support this, so authors should provide an alternate means of moving
to the new page where necessary. The Refresh header is sometimes used
for "splash screens" or when a page has moved, but the technique is
not very effective since users may not even be looking at the window
that is to be refreshed. Some search engines penalize pages that use a
Refresh of a few seconds or less.
http://htmlhelp.com/reference/html40/head/meta.html

Aug 4 '08 #4

bill

Stefan Mueller wrote:

Hallo

I'm looking for a solution to display on a web page each second a new
line.
Unfortunately does the following solution not work with the Internet
Explorer:

http://test.seekware.ch/test/flush-withtable.php

PHP code:
<html>
<head>
<?php
header("cache-control: no-cache");
header("pragma: no-cache");
?>
</head>

<body>
<?php
echo "<table border = '1'>";

for ($counter = 0; $counter <= 5; $counter++) {
echo "<tr><td>" . $counter . "<br></td></tr>";

ob_flush();
flush();
sleep(1);
}

echo "</table>";
?>
</body>
</html>
Even if I do it without a table it does not work with the Internet
Explorer:

http://test.seekware.ch/test/flush-notable.php

PHP code:
<html>
<head>
<?php
header("cache-control: no-cache");
header("pragma: no-cache");
?>
</head>

<body>
<?php
for ($counter = 0; $counter <= 5; $counter++) {
echo $counter . "<br>";

ob_flush();
flush();
sleep(1);
}
?>
</body>
</html>
Does someone know a solution which works also with the Internet
Explorer?

Regards
Stefan

PS: Both solutions work with Mozilla and Opera.

The simplest solution is to have your php generate a page with a
javascript variable loaded with your text. Then have a
javascript program that parses the text (using the current
display width) and updates the display with the additional text
each second. Not trivial and will not work if the user has js
turned off/

Aug 4 '08 #5

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