Receiving Maximum function nesting level of '100' reached, aborting! when trying to make a recursion script with PHP

Question

public function action_xmlread()
{
        $xml = simplexml_load_file('new.xml');

        foreach($xml->body as $b)
        {
            foreach ($b->node as $node) {
                $this->dig($node);
            }
        }
}
public function dig($node)
{
    if(isset($node->tit) && !isset($node->url))
    {
        $this->dig($node);
    }else{
        $this->grabData($node);
    }
}
public function grabData($node)
{
    $category_names = array('userdef1', 'userdef2');

    $url = $node->url;

    $category = '';
    foreach($category_names as $catname)
    {
        if(isset($node->$catname))
        {
            $category = $node->$catname;

            break;
        }
    }

    $keywords = $node->key;
    $title = $node->tit;
    if(empty($url) && empty($category))
    {
        continue;
    }
    $this->saveItem($title, $url, $category, $keywords);
    echo $url . " , category: ". $category;
    echo '<br />';
}

When I run xmlread() it dies with:

Maximum function nesting level of '100' reached, aborting!

On the

$this->dig($node);

Inside the dig() function.. How can this be solved?

Maxim Krizhanovsky · Accepted Answer · 2012-05-09 19:58:54Z

2

You are in infinite recursion, since you are not changing the parameter you are passing to dig. Maybe you have to pass the child nodes?

answered May 9, 2012 at 19:58

Maxim Krizhanovsky

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3 Comments

Karem Over a year ago

Thats true, clicked for me now. I tried to change to $this->dig($node[0]) , but still the same errors. I did var_dump($node); exit; and got this: pastebin.com/dzcSsyv4 , I would like to grabData() on all the [0], [1] etc nodes inside the public 'node' => array as you can see.. Hope you can help me out thanks!

Karem Over a year ago

Update: I did this: pastebin.com/HXnvUyuL and now it works! Although my issue now is that I cant go deeper than one sub-node, which was my main purpose for making this script

Karem Over a year ago

Update: edited to $this->dig($n); Now it works how I wish i believe

Community · Accepted Answer · 2017-05-23 12:29:34Z

1

To increase your function nesting level you need to edit your php.ini. But maybe your problem is somewhere else.

xdebug.max_nesting_level = 200

Source

edited May 23, 2017 at 12:29

CommunityBot

11 silver badge

answered May 9, 2012 at 20:01

Abenil

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