PHP class with a static property

Last update on May 29 2025 13:07:58 (UTC/GMT +8 hours)

13. Logger Class with Static LogCount

Write a class called 'Logger' with a static property called 'logCount' that keeps track of the number of log messages. Implement a static method to log a message.

Sample Solution:

PHP Code :

<?php
class Logger {
    public static $logCount = 0;

    public static function log($message) {
        echo $message . "</br>";
        self::$logCount++;
    }
}
Logger::log("Log message 1");
Logger::log("Log message 2");
Logger::log("Log message 3");

echo "Total log count: " . Logger::$logCount . "</br>";

?>

Sample Output:

Log message 1
Log message 2
Log message 3
Total log count: 3

Explanation:

In the above exercise -

The "Logger" class has a static property called $logCount, which is initially set to 0 and will be incremented each time a log message is logged.
The log() method is a static method that takes a $message parameter and echoes the message. It also increments the logCount property using self::$logCount to refer to the static property.

Flowchart:

For more Practice: Solve these Related Problems:

Write a PHP class Logger with a static property to count log messages and a static method that increments this counter and writes the log to a file.
Write a PHP script to simulate multiple log entries using the Logger class and then output the final log count.
Write a PHP function that uses the Logger class to log messages with a unique identifier and test concurrent logging.
Write a PHP program to reset the Logger's static counter and verify the behavior across multiple instances of logging.

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