Simple WordPress logging function

simple-wordpress-logging-function.php

	/**
	 * Logs output into wp-content/logs/asana-api-debug.log
	 */
	protected function log($message)
	{
		$line = '[' . date('Y-m-d H:i:s') . '] ' . $message . "\n";
		file_put_contents($this->logFile, $line, FILE_APPEND);
	}

	/**
	 * Make sure log dir exists and is writable
	 */
	protected function prepareLogFile()
	{
		$logDir = WP_CONTENT_DIR . DIRECTORY_SEPARATOR . 'logs' . DIRECTORY_SEPARATOR;
		if(!file_exists($logDir)) {
			mkdir($logDir);
		}
		$logFile = $logDir . DIRECTORY_SEPARATOR . 'asana-api-debug.log';
		if(!file_exists($logFile)) {
			touch($logFile);
		}
		$this->logFile = $logFile;
	}