【PHP】打印log方法

<?php
require (‘../dao/medoo.php‘);

function logI($tag, $message) {
    input("i", $tag, $message);
}

function logE($tag, $message) {
    input("e", $tag, $message);
}

function logW($tag, $message) {
    input("w", $tag, $message);
}
function logD($tag, $message) {
    input("d", $tag, $message);
}

function input($type, $tag, $message) {
    $db = new medoo(null);
    $db->insert("en_log", array (
    "l_id" => uuid(), "l_type" => $type, "l_tag" => $tag, "l_msg" => $message));
}

/**
 * 生成UUID
 */
function uuid($prefix = ‘‘){
    $chars = md5(uniqid(mt_rand(), true));
    $uuid  = substr($chars,0,8) . ‘-‘;
    $uuid .= substr($chars,8,4) . ‘-‘;
    $uuid .= substr($chars,12,4) . ‘-‘;
    $uuid .= substr($chars,16,4) . ‘-‘;
    $uuid .= substr($chars,20,12);
    return $prefix . $uuid;
}
?>

CREATE TABLE `en_log` (
  `l_id` char(36) NOT NULL,
  `l_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  `l_type` enum(‘i‘,‘d‘,‘w‘,‘e‘) NOT NULL,
  `l_tag` char(50) NOT NULL,
  `l_msg` text NOT NULL,
  PRIMARY KEY (`l_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;