What is the potential cause for the output "loginname ' ' hat 20 zeichen" when using strlen() in PHP?

The potential cause for the output "loginname ' ' hat 20 zeichen" when using strlen() in PHP is that there might be extra whitespace characters in the loginname string. To solve this issue, you can use the trim() function in PHP to remove any leading or trailing whitespace characters from the string before using strlen(). 

$loginname = " username ";
$loginname = trim($loginname);
$length = strlen($loginname);
echo "loginname '$loginname' has $length characters";

Keywords

PHP strlen() output loginname character limit

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