Javascript function can't read variables set by php

[dan.cao.nguyen]

OK, I've basically copied this code ad verbatim from a book to
test...what I have is an index.html page that refers to "map_data.php"
and "map_functions.js"...

map_data.php draws some coordinates from a database and outputs them
into an array called markers. However, when I load up the index.html
page, it says "markers" is undefined...

Here's the code in map_data.php:

var markers = [
<?php while($row = mysql_fetch_assoc($result)): ?>
<?= $joiner ?>
{
'latitude': <?= $row['latitude'] ?>,
'longitude': <?= $row['longitude'] ?>,
'lawyer': <?= $row['lawyer']?>,
'city': <?= $row['city']?>,
'business_name': '<?= addslashes($row['business_name'])?>',
'address': '<?= addslashes($row['address'])?>'
}
<?
$joiner = ',';
?>
<?php endwhile; ?>
];

I can't get anything in the map_functions.js to read this markers
array, even if it's a simple alert call like
"alert(markers[3].longitude"...

[Kimmo Laine]

<da************@gmail.comwrote in message
news:11**********************@i42g2000cwa.googlegr oups.com...

OK, I've basically copied this code ad verbatim from a book to
test...what I have is an index.html page that refers to "map_data.php"
and "map_functions.js"...

map_data.php draws some coordinates from a database and outputs them
into an array called markers. However, when I load up the index.html
page, it says "markers" is undefined...

Here's the code in map_data.php:

var markers = [
<?php while($row = mysql_fetch_assoc($result)): ?>
<?= $joiner ?>
{
'latitude': <?= $row['latitude'] ?>,
'longitude': <?= $row['longitude'] ?>,
'lawyer': <?= $row['lawyer']?>,
'city': <?= $row['city']?>,
'business_name': '<?= addslashes($row['business_name'])?>',
'address': '<?= addslashes($row['address'])?>'
}
<?
$joiner = ',';
?>
<?php endwhile; ?>
];

I can't get anything in the map_functions.js to read this markers
array, even if it's a simple alert call like
"alert(markers[3].longitude"...

Tried viewing the source? It would be very helpful if you could show what
php actually outputs there. Since markers is undefined, are you sure you've
got the map_data.php inside a javascript tag? As in:

<script type="text/javascript">
<?php require(map_data.php ?>
</script>

And I just gotta say... You're actually using while(): endwhile! Burn the
witch! Vade retro satana! (Nothing wrong with the syntax though, it IS valid
php, but man, it's just unorthodox!)

--
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[Jerry Stuckle]

da************@gmail.com wrote:

OK, I've basically copied this code ad verbatim from a book to
test...what I have is an index.html page that refers to "map_data.php"
and "map_functions.js"...

map_data.php draws some coordinates from a database and outputs them
into an array called markers. However, when I load up the index.html
page, it says "markers" is undefined...

Here's the code in map_data.php:

var markers = [
<?php while($row = mysql_fetch_assoc($result)): ?>
<?= $joiner ?>
{
'latitude': <?= $row['latitude'] ?>,
'longitude': <?= $row['longitude'] ?>,
'lawyer': <?= $row['lawyer']?>,
'city': <?= $row['city']?>,
'business_name': '<?= addslashes($row['business_name'])?>',
'address': '<?= addslashes($row['address'])?>'
}
<?
$joiner = ',';
?>
<?php endwhile; ?>
];

I can't get anything in the map_functions.js to read this markers
array, even if it's a simple alert call like
"alert(markers[3].longitude"...

I suspect you have short tags disabled in your php.ini file.

Instead of '<?= ' you should use '<?php echo '.

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

[Dan Bee]

Thanks all,

The idiotic error I made is that in the outputted array, I did not put
quotation marks around the strings. Doh.

Jerry Stuckle wrote:

dan... wrote:

OK, I've basically copied this code ad verbatim from a book to
test...what I have is an index.html page that refers to "map_data.php"
and "map_functions.js"...

map_data.php draws some coordinates from a database and outputs them
into an array called markers. However, when I load up the index.html
page, it says "markers" is undefined...

Here's the code in map_data.php:

var markers = [
<?php while($row = mysql_fetch_assoc($result)): ?>
<?= $joiner ?>
{
'latitude': <?= $row['latitude'] ?>,
'longitude': <?= $row['longitude'] ?>,
'lawyer': <?= $row['lawyer']?>,
'city': <?= $row['city']?>,
'business_name': '<?= addslashes($row['business_name'])?>',
'address': '<?= addslashes($row['address'])?>'
}
<?
$joiner = ',';
?>
<?php endwhile; ?>
];

I can't get anything in the map_functions.js to read this markers
array, even if it's a simple alert call like
"alert(markers[3].longitude"...

I suspect you have short tags disabled in your php.ini file.

Instead of '<?= ' you should use '<?php echo '.

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