Maximum function nesting level , what it means?

Question

when i add

    Mage::log($name, null, 'events.log', true);

in the function of dispatchEvent()

public static function dispatchEvent($name, array $data = array())
{
    Mage::log($name, null, 'events.log', true);
    Varien_Profiler::start('DISPATCH EVENT:'.$name);
    $result = self::app()->dispatchEvent($name, $data);
    Varien_Profiler::stop('DISPATCH EVENT:'.$name);
    return $result;
}

the following error i got

( ! ) Fatal error: Maximum function nesting level of '100' reached, aborting! in E:\wamp\www\magento\app\code\core\Mage\Core\Model\Abstract.php on line 119

how to avoid this?

Answer 1

You can add following line in your .htacess(located at root of magento) to avoid above error. It about maximum nesting allowed for recursion by xdebug module.

php_value xdebug.max_nesting_level 500

Another solution is to add

 xdebug.max_nesting_level = 500

in your php.ini

Answer 2

If you have xdebug installed then try to increase xdebug.max_nesting_level in your xedug config file or your php.ini
http://xdebug.org/docs/all_settings#max_nesting_level

Also if you have installed xdebug on the production server, please remove it, as xdebug degrades the performance. http://docs.gantry.org/gantry5/troubleshooting/max-nesting-level