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1
 
$class = array('c1', 'c2', 'c3', 'c4');

$people['c1'] = 'A';
$people['c2'] = 'B';
$people['c3'] = 'C';
$people['c4'] = 'D';

foreach ($class as $key)
{
  echo "Name: ".$people[$key]."\n"; 
}

result :

A
B
C
D

now when i add new 50 values to $class and $people

in some host everthing fine, but with hostpapa.com

looping only run well 36 time.

from 36+ , some values are null ( $people[$key] = null )

I don't know why. Maybe a settings limit the array ?

Note: Suhosin is instlled on this host

share|improve this question
    
why didn't you ask hostpapa.com ? –  genesis Jul 14 '11 at 9:25
1  
You can't limit arrays in any normal version of PHP. Only memory limits apply, but I doubt that's a problem with 36 tiny strings. –  deceze Jul 14 '11 at 9:25
2  
Additionally, show us your code that "adds" 50 values and causes null values. It's more likely to be a typo. –  Kyle Jul 14 '11 at 9:27
1  
don't use c1 as a key, unless c1 is a defined constant. use 'c1'. Otherwise PHP checks if c1 is defined constant, then converts it to string 'c1', issuing a warning that c1 is not defined, which is written to logs and eventually outputed (depending on the settings). It's 4x slower. –  Darhazer Jul 14 '11 at 9:33
1  
@Chameron my point is, that if the id is a string, you have to use '' around the string :) Just a note, as this is a very common mistake. –  Darhazer Jul 14 '11 at 9:36
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3 Answers

up vote 2 down vote accepted

My guess would be that the hosting company may be running the "security hardened" version of PHP known as Suhoshin.

Suhoshin implements a large number of security hardening features for PHP, including the ability to limit stuff like field lengths and array sizes -- see http://www.hardened-php.net/suhosin/configuration.html

It may be that something in your code is triggering one of Suhoshin's filters.

Either way, this sounds like something you need to discuss with your hosting company.

share|improve this answer
    
Maybe , i check phpinfo has Suhosin .... –  Chameron Jul 14 '11 at 10:19
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up vote 0 down vote 
$class = array('c1', 'c2', 'c3', 'c4');

$people[c1] = 'A';
$people[c2] = 'B';
$people[c3] = 'C';
$people[c4] = 'D';

foreach ($class as $key)
{
  if(key() > 36) {
    break;
  }
  echo "Name: ".$people[$key]."\n";

I hadn't test this, but it's must work. }

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up vote 0 down vote

Depending on what you do in for foreach statement it can be due to a limitation in execution time limit of you script.

If you do relatively timeconsuming stuff per loop in the foreach this could easily add up to minutes and this can run into the execution time limit in the php.ini.

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