JS/PHP Integration

[ashore]

Say I'm using a snippet like
$phpfoo = "a\nb\nc";
var jsfoo = "<?php echo $phpfoo;?>";

This errors out because JS sees the newline, and it needs to be
escaped somehow. (In my real case, $phpfoo came from MySQL, and it's
retrieved and displayed OK.)

What do you folks use in this kind of situation? Thanks, all.

AS

[Peter Michaux]

On Apr 27, 7:35 am, ashore <[e-mail]:

Say I'm using a snippet like
$phpfoo = "a\nb\nc";
var jsfoo = "<?php echo $phpfoo;?>";

This errors out because JS sees the newline, and it needs to be
escaped somehow. (In my real case, $phpfoo came from MySQL, and it's
retrieved and displayed OK.)

What do you folks use in this kind of situation? Thanks, all.

If the $phpfoo string in PHP contains a new line then this is
something you solve with PHP before you print it into the HTML page.
Turn the new line character into somthing that will print as "\n" into
the page if you want the JavaScript to see the new line.

Peter

[Martin Honnen]

ashore wrote:

Say I'm using a snippet like
$phpfoo = "a\nb\nc";
var jsfoo = "<?php echo $phpfoo;?>";

This errors out because JS sees the newline, and it needs to be
escaped somehow. (In my real case, $phpfoo came from MySQL, and it's
retrieved and displayed OK.)

PHP has addslashes e.g.
var jsfoo = "<?php echo addslashes($phpfoo); ?>";
that should help (although it is there in PHP to deal with escaping
strings for data base stuff).
--

Martin Honnen
http://JavaScript.FAQTs.com/

[-Lost]

ashore wrote:

Say I'm using a snippet like
$phpfoo = "a\nb\nc";
var jsfoo = "<?php echo $phpfoo;?>";

This errors out because JS sees the newline, and it needs to be
escaped somehow. (In my real case, $phpfoo came from MySQL, and it's
retrieved and displayed OK.)

What do you folks use in this kind of situation? Thanks, all.

I imagine we would generate content that JavaScript could handle.

<script type="text/javascript">
var blah = '<?php print 'a\\nb\\nc'; ?>';
</script>

For example.

--
-Lost
Remove the extra words to reply by e-mail. Don't e-mail me. I am
kidding. No I am not.

[Christoph Burschka]

Martin Honnen schrieb:

ashore wrote:

>Say I'm using a snippet like
$phpfoo = "a\nb\nc";
var jsfoo = "<?php echo $phpfoo;?>";

This errors out because JS sees the newline, and it needs to be
escaped somehow. (In my real case, $phpfoo came from MySQL, and it's
retrieved and displayed OK.)

PHP has addslashes e.g.
var jsfoo = "<?php echo addslashes($phpfoo); ?>";
that should help (although it is there in PHP to deal with escaping
strings for data base stuff).

Actually, it's not JS that turns "\n" into a newline, it's PHP.

If single quotes (like below) don't make it go away, *then* it's time to
look for ways to escape it on the Javascript side; not before.

> <?php $phpfoo = 'a\nb\nc'; ?>
var jsfoo = "<?php echo $phpfoo;?>";

--
cb

[gosha bine]

On 27.04.2007 16:35 ashore wrote:

Say I'm using a snippet like
$phpfoo = "a\nb\nc";
var jsfoo = "<?php echo $phpfoo;?>";

This errors out because JS sees the newline, and it needs to be
escaped somehow. (In my real case, $phpfoo came from MySQL, and it's
retrieved and displayed OK.)

What do you folks use in this kind of situation? Thanks, all.

AS

try

<?php echo addcslashes($phpfoo, "\0..\37");?>
--
gosha bine

extended php parser ~ http://code.google.com/p/pihipi
blok ~ http://www.tagarga.com/blok

[Martin Honnen]

Martin Honnen wrote:

PHP has addslashes e.g.
var jsfoo = "<?php echo addslashes($phpfoo); ?>";
that should help

No, it does not help (as it does not esape \n), seems a regular
expression replacement is needed.

--

Martin Honnen
http://JavaScript.FAQTs.com/

[-Lost]

Martin Honnen wrote:

Martin Honnen wrote:

>PHP has addslashes e.g.
var jsfoo = "<?php echo addslashes($phpfoo); ?>";
that should help

No, it does not help (as it does not esape \n), seems a regular
expression replacement is needed.

Huh? addslashes would yield a\\nb\\nc. That is effectively escaping
newlines is it not?

--
-Lost
Remove the extra words to reply by e-mail. Don't e-mail me. I am
kidding. No I am not.

[Toby A Inkster]

Martin Honnen wrote:

PHP has addslashes e.g.
var jsfoo = "<?php echo addslashes($phpfoo); ?>";

In this case, addcslashes($phpfoo) would work better.

--
Toby A Inkster BSc (Hons) ARCS
http://tobyinkster.co.uk/
Geek of ~ HTML/SQL/Perl/PHP/Python*/Apache/Linux

* = I'm getting there!

[Toby A Inkster]

-Lost wrote:

Huh? addslashes would yield a\\nb\\nc. That is effectively escaping
newlines is it not?

In the given example:

$phpfoo = "a\nb\nc";

No, it would not. addslashes() wouldn't do anything to that string.

--
Toby A Inkster BSc (Hons) ARCS
http://tobyinkster.co.uk/
Geek of ~ HTML/SQL/Perl/PHP/Python*/Apache/Linux

* = I'm getting there!

[ashore]

Guys, the addslashes didn't work for me, tho I agree they shd! But
tell me why the following PHP didn't wrk:

$phpfoo = "\n\n\n";

print str_replace('\n' ,'ZZZZZZZZZZZZZ' ,$phpfoo);

AS

[Hendri Kurniawan]

ashore wrote:

Guys, the addslashes didn't work for me, tho I agree they shd! But
tell me why the following PHP didn't wrk:

$phpfoo = "\n\n\n";

print str_replace('\n' ,'ZZZZZZZZZZZZZ' ,$phpfoo);

AS

Because of the single quote.
PHP process "\n", but does not process '\n';

Hendri

[ashore]

Hendri, you're right! I've been PHP'ing for years and didn't know
that. I knew in general that PHP wouldn't parse between sgl quotes,
but I didn't realize that included this situation. Thanks.

AS

[Toby A Inkster]

ashore wrote:

print str_replace('\n' ,'ZZZZZZZZZZZZZ' ,$phpfoo);

Stop mucking around with str_replace. Just use addcslashes().

--
Toby A Inkster BSc (Hons) ARCS
http://tobyinkster.co.uk/
Geek of ~ HTML/SQL/Perl/PHP/Python*/Apache/Linux

* = I'm getting there!

[ashore]

Yep, that works fine. But I need to show line breaks in the html. so
the str_replace() is still there.

Thanks for all the help here, folks. 'Preciated!

AS