php3 workaround for array_count_values() ?

Hi all,

I have just finished a small job only to realise that the client has PHP3 not 4! running, everything works except

array_count_values() - which is PHP4 only, I am certain I saw somewhere here a php version of this - ie a script which does the same job, I have searched but can not find it.. anybody?

I guess I can work it out but agggghhh my head hurts , I basically need to return an array that holds the values and frequency of another array.

It is a piece of cake to cut your own function to do this:

PHP Code:

---

function array_count_values ($array) {
   $countValues = array();
   while( list($key, $val) = each($array) ) {
      ++$countValues[$val];
   }
   return $countValues;
} 


---

Note I was going to use the conditional foreach to loop through the array but checked that it was php3 which it is not.

Thanks Freakysid but that does not work for me (unless I implemented it incorrectly?), I need an array that includes the array value and the number of times it occurs, I have gotten around it using this.

Code:

---

function my_count_values($temp){global $thisname;
$rets=0;
while(list($key,$var)=each($thisname)){
if ($temp==$var){$rets++;}}
return $rets;
}

while(list($key,$var)=each($althisname)){
$rets=my_count_values($var);
if($rets>1){$temparray[$var]=1;}
reset($thisname);
}

---

& while it works it also sucks :) - if you have an array with 400 values (which I do) this checks each value (400) 400 times!

This application is unlikely to ever have to cope with more than that ,but I hate code which I know is innefficient.

Cheers.

note that $thisname and $althisname are copies of each other

Test Code:

PHP Code:

---

<?php

function my_array_count_values($array) {
   $countVals = array();
   while(list($key, $val) = each($array)) {
      $countVals[$val]++;
   }
   return $countVals;
}

$values = array("hat", "pipe", "trout", "fig", "pipe", "hat", "aardvark",
              "moustache", "pipe", "dog", "pipe", "fig", "fig");

$frequencies = my_array_count_values($values);
while(list($key, $val) = each($frequencies)) {
   echo "$key $val <br>";
}

?>

---

Results:

hat 2
pipe 4
trout 1
fig 3
aardvark 1
moustache 1
dog 1

:)