大多数使用php函数在字符串中出现字母

Question

i have string AABBBCCCDABBAACBB , in this i need to find the most occurrence of Character , how can i find this??

in above string it should return 7 ad B comes 7 times i.e max.

$str = "AABBBCCCABB";
$strArray = count_chars($str,1);

foreach ($strArray as $key=>$value)
{
    echo "The character <b>'".chr($key)."'</b> was found $value time(s)<br>";
    //$highest=chr($key);
    if(isset($highest) && $highest>chr($key))
    {
        $highest=chr($key);
    }
}
echo "<br/><br/>Highest value is ::".$highest;

above code i tried,

i tried but functionality is not perfect , which function of php i should use?

Answer 1

You don't need a loop for this. Use array_search() to find the key of the most repeated value, and use chr() on it:

$str = "AABBBCCCDABBAACBB";
$strArray = count_chars($str,1);
echo chr(array_search(max($strArray), $strArray));

Output:

B

Demo!