PHP simple html dom: apache crashes

Question

I'm using Simple HTML Dom. I'm trying to run the following: (with WAMP)

$doc = file_get_html('http://www.scoop.it/t/curate-your-personal-learning-environment?page=3');
$comments = array();
$CommentList = $doc->find('#commentList div[class=commentContainer]');
if (count($CommentList) > 0)
    var_dump($CommentList);
foreach ($CommentList as $comment)
{
    $text = $comment->find('span[class^=author]');
    $comments[] = $this::ctrim($text[0]->innertext);
}

If I comment out the foreach loop, it runs fine. Otherwise, the apache crashes.

One important note: If I comment out the inside of the foreach loop, it still crashes. I added the var dump to make sure that the array has valid items.

EDIT:

Apache logs:

[Tue Jul 10 16:53:53 2012] [notice] Parent: child process exited with status 255 -- Restarting.
[Tue Jul 10 16:53:53 2012] [notice] Apache/2.2.22 (Win64) PHP/5.3.13 configured -- resuming normal operations
[Tue Jul 10 16:53:53 2012] [notice] Server built: May 13 2012 19:41:17
[Tue Jul 10 16:53:53 2012] [notice] Parent: Created child process 5568
[Tue Jul 10 16:53:53 2012] [notice] Child 5568: Child process is running
[Tue Jul 10 16:53:53 2012] [notice] Child 5568: Acquired the start mutex.
[Tue Jul 10 16:53:53 2012] [notice] Child 5568: Starting 64 worker threads.
[Tue Jul 10 16:53:53 2012] [notice] Child 5568: Starting thread to listen on port 80.
[Tue Jul 10 16:53:53 2012] [notice] Child 5568: Starting thread to listen on port 80.

what does apache say? can you post the errorlog?

ivoba
– ivoba

2012-07-10 12:33:51 +00:00
Commented Jul 10, 2012 at 12:33 — ivoba
– ivoba, Commented Jul 10, 2012 at 12:33

Community · Accepted Answer · 2017-05-23 12:27:53Z

2

this might be a memory leak:
since your apache says:

child process exited with status 255

see here:
PHP Out of Memory - Crashes Apache?

Due to php5 circular references memory leak, after creating DOM object, you must call $dom->clear() to free memory if call file_get_dom() more then once.

from here: http://simplehtmldom.sourceforge.net/manual_faq.htm#memory_leak

edited May 23, 2017 at 12:27

CommunityBot

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answered Jul 10, 2012 at 14:05

ivoba

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1 Comment

Novak Over a year ago

Yep! I forgot I had a loop calling the pages, and when I called file_get_html I didn't free that memory. Thank you so much!

Ron · Accepted Answer · 2012-07-10 12:42:06Z

1

Try to change

$this::ctrim($text[0]->innertext);

to

self::ctrim($text[0]->innertext);

or

$this->ctrim($text[0]->innertext);

$obj->method is an instance call. Class::method is an static call. $this::method does probably something weird...

answered Jul 10, 2012 at 12:42

Ron

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1 Comment

Novak Over a year ago

The problem is in the foreach loop, I commented everything inside the loop, leaving only the iteration, but it still causes it to crash.

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