Most occurred letter in a string using php function - php

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!

Answer 2

$string="AABBBCCCABB";
foreach (str_split($string) as $s){
if (isset($counts[$s])) continue;
$counts[$s]=substr_count($string, $s);
echo "The character <b>'" . $s . "'</b> was found ".$counts[$s]." time(s)<br>";
}
$maxs=array_keys($counts, max($counts));
echo "Highest value is ::'".$maxs[0];

Answer 3

Solution for your code by your way:
$str = "AABBBCCCABB";
$strArray = count_chars($str,1);
$highest = $str[0];
$times = 0;
foreach ($strArray as $key=>$value){
echo "The character <b>'".chr($key)."'</b> was found $value time(s)<br>";
//$highest=chr($key);
if($times < $value)
{
$times = $value;
$highest=chr($key);
}
}
echo "<br/><br/>Highest value is ::".$highest;
But answer of Alma Do is better to use.

Answer 4

You could also use the max() function:
$str = "AABBBCCCABB";
$strArray = count_chars($str,1);
$highest = max($strArray);
foreach ($strArray as $key=>$value) {
echo "The character <b>'" . chr($key) . "'</b> was found $value time(s)<br>";
}
echo "<br/><br/>Highest value is ::" . $highest;

Answer 5

Try this solution, hope this helps you to solve.
$string = "AABBBCCCABB";
$letters = array_count_values(str_split($string));
$val = array_search(max($letters), $letters);
echo $val;

Answer 6

Try this..
echo maxCountChar("AABBBCCCDABBAACBB");
function maxCountChar($string){
foreach (str_split($string) as $s){
$counts[$s]=substr_count($string, $s);
}
$maxs=array_keys($counts, max($counts));
$num = substr_count($string, $maxs[0]);
return "The character <b>$maxs[0]</b> was found <b>$num</b> times";
}
Output
The character B was found 7 times