PHPでログに出力するクラス

log.php

<?php
class Log {
	const LOG_FILE = 'log/console.log';

	public static function warn($message = '', $toError = true) {
		if ($toError) {
			return user_error("$message", E_USER_WARNING);
		}
		else {
			// 呼び出し元のファイル名と行番号とか出したい
			return self::writeln(mb_substr(0, 1024, $message), false);
		}
	}

	public static function dump($object = null, $toError = true) {
		return self::write(print_r($object, true), $toError);
	}

	public static function write($string = '', $toError = true) {
		if ($toError === true) {
			return error_log("$string");
		}
		else {
			return self::puts((($toError) ?: self::LOG_FILE), "$string");
		}
	}

	public static function writeln($string = '', $toError = true) {
		return self::write($string . PHP_EOL, $toError);
	}

	public static function hr($pattern = '=', $toError = true) {
		return self::writeln(str_repeat($pattern, 20), $toError);
	}

	public static function err($string) {
		error_log($string);
	}

	public static function puts() {
		if ($fp = fopen(func_get_arg(0), 'a')) {
			for ($i = 1; $i < func_num_args(); $i++) {
				fwrite($fp, func_get_arg($i));
			}
			fclose($fp);
			return true;
		}
		return false;
	}
}