PHP count_chars() Function
Definition
The count_chars() function returns an array containing
the letters used in that string and how many times each letter was used.
Syntax
PHP count_chars() function has the following syntax.
mixed count_chars ( string str [, int mode] ) Parameter
If the mode parameter is 1, only letters with a frequency greater than 0 are listed; if the mode parameter is 2, only letters with a frequency equal to 0 are listed.
Return
PHP count_chars() function returns the character count.
Example
Get the caracter count
<?PHP//from w ww. jav a 2 s . c o m
$str = "This is a test from java2s.com.";
$a = count_chars($str, 1);
print_r($a);
?>
In that output, ASCII codes are used for the array keys, and the frequencies of each letter are used as the array values.
The code above generates the following result.
