closure优化；完成time知识点梳理

README.md

@@ -34,11 +34,11 @@
   - [x] [PHP常用函数系列之字符串处理](https://github.com/YuanLianDu/YLD-with-Php/blob/master/articles/php/String%20Operation.md)
   - [x] [PHP面向对象编程](https://github.com/YuanLianDu/YLD-with-Php/blob/master/articles/php/Object-Oriented%20Programming.md)
   - [ ] PHP常用数组函数
-  - [ ] PHP时间处理相关函数及开发实战技巧
+  - [x] [PHP时间处理相关函数及开发实战技巧](https://github.com/YuanLianDu/YLD-with-Php/blob/master/articles/php/time.md)
   - [ ] 正则
   - [ ] 文件
   - [x] [PHP 预定义接口－－closure](https://github.com/YuanLianDu/YLD-with-Php/blob/master/articles/php/Closure.md)
-
+  - [x] [Exception 学习笔记](https://github.com/YuanLianDu/YLD-with-Php/blob/master/articles/php/Exception.md)
 + [ ] MongoDB
  - [ ] 百万级数据处理
 

articles/php/Closure.md

@@ -76,9 +76,9 @@ function echoStr(){
 	$invokeOutsideParam = function () use($num) {
 		echo $num;
 		$num ++;
-	};
+	};//使用use 调用匿名函数的外部参数
 
-	$invokeOutsideParam();
+	$invokeOutsideParam();//执行匿名函数
 	echo $num;
 }
 输出： 11
@@ -97,7 +97,7 @@ function echoStr(){
 		$num ++;
 	};
 
-	return $invokeOutsideParam;
+	return $invokeOutsideParam;//返回匿名函数
 }
 
 $echostr = echoStr();

articles/php/time.md

@@ -21,6 +21,8 @@
 
 
 `date`开头的函数是过程化风格，还有相应的对象化风格。
+
+
 ## 开发实践
 
 ### 格式化时间
@@ -32,10 +34,112 @@
 + `date_format($date, 'G:ia');` 输出：`05:45pm`
 + `date_format($date, 'g:ia \o\n l jS F Y');` 输出：`5:45pm on Saturday 24th March 2012`
 
+**Notice**:第一个参数$date，规定由`date_create()`返回的 DateTime 对象。
+
+常用的格式化时间函数是，`date`,它可以将一个时间戳转化为我们想要的格式,并返回一个字符串,以下为各种格式的转化:
+
+```
+function dumpTime()
+{
+	var_dump(date('Y-m-d H:i:s',time()));//string(19) "2016-12-26 11:31:37"
+	var_dump(date('d/m/Y H:i:s',time()));//string(19) "26/12/2016 11:31:37"
+	var_dump(date('d/m/y',time()));//string(8) "26/12/16"
+	var_dump(date('g:i A',time()));//string(8) "11:31 AM"
+	var_dump(date('G:ia',time()));//string(7) "11:31am"
+	var_dump(date('g:ia \o\n l jS F Y',time()));//string(36) "11:31am on Monday 26th December 2016"
+}
+```
 
 ### unix时间转化
+
+`strtotime`将任何英文文本的日期时间描述解析为 Unix 时间戳:
+
++ `echo strtotime("1991-10-11 10:00:00")`
++ `echo strtotime("now")`
++ `echo strtotime("10 September 2000")`
++ `echo strtotime("+1 day")`
++ `echo strtotime("+1 week")`
++ `echo strtotime("+1 week 2 days 4 hours 2 seconds")`
++ `echo strtotime("next Thursday")`
++ `echo strtotime("last Monday")`
+
+
 ### 计算时间差
+
+1、利用秒数，计算两个时间相差xx天xx小时xx分钟xx秒
+
+```
+function timeInterval() {
+	$time = strtotime('2016-11-11 13:10:11');
+	$timeOne = strtotime('2016-11-01 12:00:00');
+	$interval = $time - $timeOne;
+	$sec = $interval%60;
+	$minu  = floor($interval/3600/24);
+	$hour = floor($interval%(3600*24)/3600);
+	$day = floor($interval/(3600*24));
+	echo $day.'day'.$hour.'hour'.$minu.'minu'.$sec.'sec';
+}
+```
+
+输出：`10day1hour10minu11sec`
+
+
+2、利用date对象，计算两个时间相差xx天xx小时xx分钟xx秒
+
+```
+function timeIntervalByDateObject() {
+
+	$timestamp = '1478833871';
+	$datetime = new DateTime(date('Y-m-d H:i:s', $timestamp));
+	$datetime_now = new DateTime();
+	$interval = $datetime_now->diff($datetime);
+//	var_dump($interval);
+	echo $interval->days.'day'.$interval->h.'hour'.$interval->i.'minu'.$interval->s.'sec';
+}
+```
+
+输出：`45day4hour18minu7sec`;
+
+打印的inter对象结构： 
+```
+object(DateInterval)#3 (15) {
+  ["y"]=>
+  int(0)
+  ["m"]=>
+  int(1)
+  ["d"]=>
+  int(15)
+  ["h"]=>
+  int(3)
+  ["i"]=>
+  int(55)
+  ["s"]=>
+  int(23)
+  ["weekday"]=>
+  int(0)
+  ["weekday_behavior"]=>
+  int(0)
+  ["first_last_day_of"]=>
+  int(0)
+  ["invert"]=>
+  int(1)
+  ["days"]=>
+  int(45)
+  ["special_type"]=>
+  int(0)
+  ["special_amount"]=>
+  int(0)
+  ["have_weekday_relative"]=>
+  int(0)
+  ["have_special_relative"]=>
+  int(0)
+}
+```
+
 ### 比较时间大小
+
+利用`strtotime()`函数，将时间转化为时间戳。可以直接利用运算符，对两个时间戳进行比较～
+
 ### [时间人性化显示](https://segmentfault.com/q/1010000006702691)
 
 ```

code/Time.php

@@ -0,0 +1,66 @@
+<?php
+/**
+ * Created by PhpStorm.
+ * User: yuan
+ * Date: 16/12/26
+ * Time: 11:09
+ */
+
+/*function  transTime($ustime)
+{
+	$ytime = date("Y-m-d H:i", $ustime);
+	$rtime = date("n月j日 H:i", $ustime);
+	$htime = date("H:i", $ustime);
+	$time = time() - $ustime;
+	$todaytime = strtotime("today");
+	$time1 = time() - $todaytime;
+	if ($time < 60) {
+		$str = '刚刚';
+	}else if ($time < 60 * 60) {
+		$min = floor($time / 60);
+		$str = $min . '分钟前';
+	}else if ($time < $time1) {
+		$str = '今天 ' . $htime;
+	}else {
+		$str = $rtime;
+	}
+	return $str;
+}
+
+
+var_dump(transTime('2016-12-26 03:01:52'));*/
+function dumpTime()
+{
+	var_dump(date('Y-m-d H:i:s',time()));
+	var_dump(date('d/m/Y H:i:s',time()));
+	var_dump(date('d/m/y',time()));
+	var_dump(date('g:i A',time()));
+	var_dump(date('G:ia',time()));
+	var_dump(date('g:ia \o\n l jS F Y',time()));
+}
+//dumpTime();
+
+//时间差
+function timeInterval() {
+	$time = strtotime('2016-11-11 13:10:11');
+	$timeOne = strtotime('2016-11-01 12:00:00');
+
+	$interval = $time - $timeOne;
+	$sec = $interval%60;
+	$minu  = floor($interval/3600/24);
+	$hour = floor($interval%(3600*24)/3600);
+	$day = floor($interval/(3600*24));
+	echo $day.'day'.$hour.'hour'.$minu.'minu'.$sec.'sec';
+}
+
+function timeIntervalByDateObject() {
+
+	$timestamp = '1478833871';
+	$datetime = new DateTime(date('Y-m-d H:i:s', $timestamp));
+	$datetime_now = new DateTime();
+	$interval = $datetime_now->diff($datetime);
+//	var_dump($interval);
+	echo $interval->days.'day'.$interval->h.'hour'.$interval->i.'minu'.$interval->s.'sec';
+}
+
+timeIntervalByDateObject();