Solution for “Fatal error: Maximum function nestin

Question

I have made a function that finds all the URLs within an html file and repeats the same process for each html content linked to the discovered URLs. The function is recursive and can go on endlessly. However, I have put a limit on the recursion by setting a global variable which causes the recursion to stop after 100 recursions.

However, php returns this error:

Fatal error: Maximum function nesting level of '100' reached, aborting! in D:\wamp\www\crawler1\simplehtmldom_1_5\simple_html_dom.php on line 1355

I found a solution here: Increasing nesting function calls limit but this is not working in my case.

I am quoting one of the answers from the link mentioned above. Please do consider it.

"Do you have Zend, IonCube, or xDebug installed? If so, that is probably where you are getting this error from.

I ran into this a few years ago, and it ended up being Zend putting that limit there, not PHP. Of course removing it will let >you go past the 100 iterations, but you will eventually hit the memory limits."

Is there a way to increase the maximum function nesting level in PHP

Answer 1

on Ubuntu using PHP 5.59 :
got to `:

/etc/php5/cli/conf.d

and find your xdebug.ini in that dir, in my case is 20-xdebug.ini

and add this line `

xdebug.max_nesting_level = 200

or this

xdebug.max_nesting_level = -1

set it to -1 and you dont have to worry change the value of the nesting level.

`

Answer 2

php.ini:

xdebug.max_nesting_level = -1

I'm not entirely sure if the value will ever overflow and reach -1, but it'll either never reach -1, or it'll set the max_nesting_level pretty high.

Answer 3

You can also modify the {debug} function in modifier.debug_print_var.php, in order to limit its recursion into objects.

Around line 45, before :

$results .= '<br>' . str_repeat('&nbsp;', $depth * 2)
  . '<b> -&gt;' . strtr($curr_key, $_replace) . '</b> = '
  . smarty_modifier_debug_print_var($curr_val, ++$depth, $length);

After :

$max_depth = 10;
$results .= '<br>' . str_repeat('&nbsp;', $depth * 2)
  . '<b> -&gt;' . strtr($curr_key, $_replace) . '</b> = '
  . ($depth > $max_depth ? 'Max recursion depth:'.(++$depth) : smarty_modifier_debug_print_var($curr_val, ++$depth, $length));

This way, Xdebug will still behave normally: limit recursion depth in var_dump and so on. As this is a smarty problem, not a Xdebug one!

Answer 4

Rather than disabling the xdebug, you can set the higher limit like

xdebug.max_nesting_level=500

Answer 5

You could convert your recursive code into an iterative code, which simulates the recursion. This means that you have to push the current status (url, document, position in document etc.) into an array, when you reach a link, and pop it out of the array, when this link has finished.

Answer 6

Increase the value of xdebug.max_nesting_level in your php.ini: http://xdebug.org/docs/all_settings#max_nesting_level