how to count strings in php?

Question

i have this situation"

foreach($front->getRequest()->getParams() as $key => $value){
  if ($value == '1'){
  $$key = $value;  
  }
}
echo $test1; // test1 = 1
echo $test2; // test2 = 1
....

this will give me back one or more $test = 1 where the $$key = $test and $value = 1

i want to see how many actually come back. and i was thinking to do something like: print_r(count($key)) or print_r(count($value)) but it doesn't tell me how many results are there

any ideas?

thanks

Never ever do anything like variable variables :( This is just bad. Use arrays for such things. — halfdan
– halfdan, Commented Nov 1, 2011 at 20:58
Variable variables have their place. Though the keys should be verified or prefixed or something before being used like this. Otherwise you're just reinventing register_globals, without even the little protection PHP offers with it. — cHao
– cHao, Commented Nov 1, 2011 at 21:02
example.com?_POST=hahaha_Im_in_ur_phps_messing_with_yur_codez!... boom goes your site. — Marc B
– Marc B, Commented Nov 1, 2011 at 21:03

Ken · Accepted Answer · 2011-11-01 21:03:23Z

2

Why not just keep a counter?

$count = 0;
foreach($front->getRequest()->getParams() as $key => $value){
    if ($value == '1'){
        $$key = $value;  
        $count++;
    } 
}
echo $count;

answered Nov 1, 2011 at 21:03

Ken

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3 Comments

Patrioticcow Over a year ago

success, so simple, i am familiar with this method and I've used a lot, just nu coffee today i guess :)

Ken Over a year ago

:) Do keep an eye out for the security issues everyone is mentioning though.

Patrioticcow Over a year ago

i am using zend, he is protecting me :)

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