How can PHP 4.3.8 be used to count characters within a string?

To count characters within a string using PHP 4.3.8, you can utilize the built-in function `strlen()`. This function returns the number of characters in a string. By passing the string you want to count as an argument to `strlen()`, you can easily determine the character count. 

<?php
$string = "Hello, World!";
$charCount = strlen($string);
echo "The number of characters in the string is: " . $charCount;
?>

Keywords

PHP 4.3.8 count characters string function strlen

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