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$dom->loadHTMLFile() error [message #183668] Thu, 07 November 2013 15:47 Go to next message
gdunn is currently offline  gdunn
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Registered: November 2013
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I wrote a small block of code for a mate that parses another web page and
it displays selected results from a table there. It runs fine locally using
php 5.3. I'm not sure what version of php is in use on his web server, but
it appears that "<?php ... $dom->" is being parsed as a single tag in the
following code:

----------BEGIN code----------------------
<?php

// Get the node_id from what was passed to this page.
if (isset($_GET['node_id'])) {
$node_id = $_GET['node_id'];
} else {
echo "No IRLP node number stated\n";
break 3;
}

// Get the node status HTML code.
$url = "http://status.irlp.net/?nodeid=$node_id" ;
$dom = new DOMDocument;
$dom->loadHTMLFile("$url");
$links = $dom->getElementsByTagName('td');
foreach($links as $i){
$node_status[] = $i->textContent;
}

// Print the fields of interest. Comment undesired lines such as:
//echo "<b>$node_status[40]</b> $node_status[41]<br>";
echo "<b>$node_status[40]</b> $node_status[41]<br>";
echo "<b>$node_status[42]</b> $node_status[43]<br>";
echo "<b>$node_status[44]</b> $node_status[45]";

?>
----------END code----------------------

On my php5.3, it returns (e.g. sans bold):

Local node date/time 14:39:10 on Nov 07 2013 CST
Current Node Status: IDLE for 0 days, 1 hours, 43 minutes, 7 seconds.
Last heard from Node: 12:56:02 on Nov 07 2013 CST

On his http://stn3717.ip.irlp.net:15426/get_node_status.php?node_id=3717

loadHTMLFile("$url"); $links = $dom->getElementsByTagName('td');
foreach($links as $i){ $node_status[] = $i->textContent; }
// Print the fields of interest. Comment undesired lines such as:
//echo "$node_status[40] $node_status[41]";
echo "$node_status[40] $node_status[41]";
echo "$node_status[42] $node_status[43]";
echo "$node_status[44] $node_status[45]"; ?>

Is it possible that php isn't operational on that site, or that it
needs to be enabled on a per-user basis?
Re: $dom->loadHTMLFile() error [message #183671 is a reply to message #183668] Thu, 07 November 2013 17:46 Go to previous messageGo to next message
Jerry Stuckle is currently offline  Jerry Stuckle
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On 11/7/2013 3:47 PM, gdunn wrote:
> I wrote a small block of code for a mate that parses another web page and
> it displays selected results from a table there. It runs fine locally using
> php 5.3. I'm not sure what version of php is in use on his web server, but
> it appears that "<?php ... $dom->" is being parsed as a single tag in the
> following code:
>
> ----------BEGIN code----------------------
> <?php
>
> // Get the node_id from what was passed to this page.
> if (isset($_GET['node_id'])) {
> $node_id = $_GET['node_id'];
> } else {
> echo "No IRLP node number stated\n";
> break 3;
> }
>
> // Get the node status HTML code.
> $url = "http://status.irlp.net/?nodeid=$node_id" ;
> $dom = new DOMDocument;
> $dom->loadHTMLFile("$url");
> $links = $dom->getElementsByTagName('td');
> foreach($links as $i){
> $node_status[] = $i->textContent;
> }
>
> // Print the fields of interest. Comment undesired lines such as:
> //echo "<b>$node_status[40]</b> $node_status[41]<br>";
> echo "<b>$node_status[40]</b> $node_status[41]<br>";
> echo "<b>$node_status[42]</b> $node_status[43]<br>";
> echo "<b>$node_status[44]</b> $node_status[45]";
>
> ?>
> ----------END code----------------------
>
> On my php5.3, it returns (e.g. sans bold):
>
> Local node date/time 14:39:10 on Nov 07 2013 CST
> Current Node Status: IDLE for 0 days, 1 hours, 43 minutes, 7 seconds.
> Last heard from Node: 12:56:02 on Nov 07 2013 CST
>
> On his http://stn3717.ip.irlp.net:15426/get_node_status.php?node_id=3717
>
> loadHTMLFile("$url"); $links = $dom->getElementsByTagName('td');
> foreach($links as $i){ $node_status[] = $i->textContent; }
> // Print the fields of interest. Comment undesired lines such as:
> //echo "$node_status[40] $node_status[41]";
> echo "$node_status[40] $node_status[41]";
> echo "$node_status[42] $node_status[43]";
> echo "$node_status[44] $node_status[45]"; ?>
>
> Is it possible that php isn't operational on that site, or that it
> needs to be enabled on a per-user basis?
>

Sure it's possible PHP isn't installed. Did you ask whomever is in
charge of the server?

What do you see when you display the page source in the browser? Do you
see the <?php tag, for instance?

--
==================
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Jerry Stuckle
JDS Computer Training Corp.
jstucklex(at)attglobal(dot)net
==================
Re: $dom->loadHTMLFile() error [message #183673 is a reply to message #183671] Fri, 08 November 2013 02:35 Go to previous messageGo to next message
Arno Welzel is currently offline  Arno Welzel
Messages: 317
Registered: October 2011
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Jerry Stuckle, 2013-11-07 23:46:

> On 11/7/2013 3:47 PM, gdunn wrote:
>> I wrote a small block of code for a mate that parses another web page and
>> it displays selected results from a table there. It runs fine locally using
>> php 5.3. I'm not sure what version of php is in use on his web server, but
>> it appears that "<?php ... $dom->" is being parsed as a single tag in the
>> following code:
>>
>> ----------BEGIN code----------------------
>> <?php
>>
>> // Get the node_id from what was passed to this page.
>> if (isset($_GET['node_id'])) {
>> $node_id = $_GET['node_id'];
>> } else {
>> echo "No IRLP node number stated\n";
>> break 3;
>> }
>>
>> // Get the node status HTML code.
>> $url = "http://status.irlp.net/?nodeid=$node_id" ;
>> $dom = new DOMDocument;
>> $dom->loadHTMLFile("$url");
>> $links = $dom->getElementsByTagName('td');
>> foreach($links as $i){
>> $node_status[] = $i->textContent;
>> }
>>
>> // Print the fields of interest. Comment undesired lines such as:
>> //echo "<b>$node_status[40]</b> $node_status[41]<br>";
>> echo "<b>$node_status[40]</b> $node_status[41]<br>";
>> echo "<b>$node_status[42]</b> $node_status[43]<br>";
>> echo "<b>$node_status[44]</b> $node_status[45]";
>>
>> ?>
>> ----------END code----------------------
>>
>> On my php5.3, it returns (e.g. sans bold):
>>
>> Local node date/time 14:39:10 on Nov 07 2013 CST
>> Current Node Status: IDLE for 0 days, 1 hours, 43 minutes, 7 seconds.
>> Last heard from Node: 12:56:02 on Nov 07 2013 CST
>>
>> On his http://stn3717.ip.irlp.net:15426/get_node_status.php?node_id=3717
>>
>> loadHTMLFile("$url"); $links = $dom->getElementsByTagName('td');
>> foreach($links as $i){ $node_status[] = $i->textContent; }
>> // Print the fields of interest. Comment undesired lines such as:
>> //echo "$node_status[40] $node_status[41]";
>> echo "$node_status[40] $node_status[41]";
>> echo "$node_status[42] $node_status[43]";
>> echo "$node_status[44] $node_status[45]"; ?>
>>
>> Is it possible that php isn't operational on that site, or that it
>> needs to be enabled on a per-user basis?
>>
>
> Sure it's possible PHP isn't installed. Did you ask whomever is in
> charge of the server?
>
> What do you see when you display the page source in the browser? Do you
> see the <?php tag, for instance?

Just open
<http://stn3717.ip.irlp.net:15426/get_node_status.php?node_id=3717> in a
browser - then you will see it as well ;-)


--
Arno Welzel
http://arnowelzel.de
http://de-rec-fahrrad.de
Re: $dom->loadHTMLFile() error [message #183674 is a reply to message #183668] Fri, 08 November 2013 02:35 Go to previous messageGo to next message
Arno Welzel is currently offline  Arno Welzel
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gdunn, 2013-11-07 21:47:

[...]
> On his http://stn3717.ip.irlp.net:15426/get_node_status.php?node_id=3717
>
> loadHTMLFile("$url"); $links = $dom->getElementsByTagName('td');
> foreach($links as $i){ $node_status[] = $i->textContent; }
> // Print the fields of interest. Comment undesired lines such as:
> //echo "$node_status[40] $node_status[41]";
> echo "$node_status[40] $node_status[41]";
> echo "$node_status[42] $node_status[43]";
> echo "$node_status[44] $node_status[45]"; ?>
>
> Is it possible that php isn't operational on that site, or that it
> needs to be enabled on a per-user basis?

It's obvious that PHP is not being executed. Ask the site administrator
if this can be changed.


--
Arno Welzel
http://arnowelzel.de
http://de-rec-fahrrad.de
Re: $dom->loadHTMLFile() error [message #183675 is a reply to message #183673] Fri, 08 November 2013 07:57 Go to previous messageGo to next message
Jerry Stuckle is currently offline  Jerry Stuckle
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On 11/8/2013 2:35 AM, Arno Welzel wrote:
> Jerry Stuckle, 2013-11-07 23:46:
>
>> On 11/7/2013 3:47 PM, gdunn wrote:
>>> I wrote a small block of code for a mate that parses another web page and
>>> it displays selected results from a table there. It runs fine locally using
>>> php 5.3. I'm not sure what version of php is in use on his web server, but
>>> it appears that "<?php ... $dom->" is being parsed as a single tag in the
>>> following code:
>>>
>>> ----------BEGIN code----------------------
>>> <?php
>>>
>>> // Get the node_id from what was passed to this page.
>>> if (isset($_GET['node_id'])) {
>>> $node_id = $_GET['node_id'];
>>> } else {
>>> echo "No IRLP node number stated\n";
>>> break 3;
>>> }
>>>
>>> // Get the node status HTML code.
>>> $url = "http://status.irlp.net/?nodeid=$node_id" ;
>>> $dom = new DOMDocument;
>>> $dom->loadHTMLFile("$url");
>>> $links = $dom->getElementsByTagName('td');
>>> foreach($links as $i){
>>> $node_status[] = $i->textContent;
>>> }
>>>
>>> // Print the fields of interest. Comment undesired lines such as:
>>> //echo "<b>$node_status[40]</b> $node_status[41]<br>";
>>> echo "<b>$node_status[40]</b> $node_status[41]<br>";
>>> echo "<b>$node_status[42]</b> $node_status[43]<br>";
>>> echo "<b>$node_status[44]</b> $node_status[45]";
>>>
>>> ?>
>>> ----------END code----------------------
>>>
>>> On my php5.3, it returns (e.g. sans bold):
>>>
>>> Local node date/time 14:39:10 on Nov 07 2013 CST
>>> Current Node Status: IDLE for 0 days, 1 hours, 43 minutes, 7 seconds.
>>> Last heard from Node: 12:56:02 on Nov 07 2013 CST
>>>
>>> On his http://stn3717.ip.irlp.net:15426/get_node_status.php?node_id=3717
>>>
>>> loadHTMLFile("$url"); $links = $dom->getElementsByTagName('td');
>>> foreach($links as $i){ $node_status[] = $i->textContent; }
>>> // Print the fields of interest. Comment undesired lines such as:
>>> //echo "$node_status[40] $node_status[41]";
>>> echo "$node_status[40] $node_status[41]";
>>> echo "$node_status[42] $node_status[43]";
>>> echo "$node_status[44] $node_status[45]"; ?>
>>>
>>> Is it possible that php isn't operational on that site, or that it
>>> needs to be enabled on a per-user basis?
>>>
>>
>> Sure it's possible PHP isn't installed. Did you ask whomever is in
>> charge of the server?
>>
>> What do you see when you display the page source in the browser? Do you
>> see the <?php tag, for instance?
>
> Just open
> <http://stn3717.ip.irlp.net:15426/get_node_status.php?node_id=3717> in a
> browser - then you will see it as well ;-)
>
>

I know I can open it. But telling him that it isn't installed doesn't
help him learn anything.

I prefer to teach a person to fish; you just give him the fish.


--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex(at)attglobal(dot)net
==================
Re: $dom->loadHTMLFile() error [message #183676 is a reply to message #183674] Fri, 08 November 2013 14:28 Go to previous message
gdunn is currently offline  gdunn
Messages: 2
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On Fri, 08 Nov 2013 08:35:15 +0100, Arno Welzel wrote:

> It's obvious that PHP is not being executed. Ask the site administrator
> if this can be changed.

Thanks Arno, the site administrator reported some missing dependencies;
all is working properly now.
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