anagram of a palindrome function

[c_pattle]

I need to write a function which comes two strings to find out if string 1 is an anagram or a palindrome

 

For example the function should return 1 for the argument "dooernedeevrvn", because it is an anagram of a palindrome "neveroddoreven". For argument "aabcba", your function should return 0.

 

I'm not really sure where to start so if anyone has done anything similar then any help would be great.  Thanks for any help. 

[Rifts]

hey my favorite palindrome is "No garden one dragon"

[Pikachu2000]

Does the function also need to determine whether the second parameter is actually a palindrome or not?

[c_pattle]

sorry I made a mistake, the function will just take one string and it just needs to work out if this is an anagram of any palindrome. 

[simshaun]

function is_palindrome($str) {
    return $str == strrev($str);
}