How to use count chars in PHP

In this article, I will explain how the count_chars() function can be used in PHP.
  • 1405

count_chars() function in PHP

  • The count_chars() function is used to return how many times an ASCII character occurs within a string and get the information.
  • The count_chars() function is return information about characters used in a string

Syntax

count_chars(string,mode)

Parameter

  • string string is required parameter. it is determine check to string.
  • mode mode is optional parameter. it's default value 0. some different return modes are:
    • 0 - an array with the ASCII value as key and number of occurrences as value
    • 1 - an array with the ASCII value as key and number of occurrences as value, only lists occurrences greater than zero
    • 2 - an array with the ASCII value as key and number of occurrences as value, only lists occurrences equal to zero are listed
    • 3 - a string with all the different characters used
    • 4 - a string with all the unused characters

Example

The following example show to how the count_chars() function can be used in PHP.

<html>

<body>

<h3 style="color: blue;">count_chars() function example in PHP</h3>

   <?php

    $str = "C-sharpcorner";

    print_r(count_chars($str,0)) ;

    ?>

</body>

</html>

 

Output

count-charsphp.jpg
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