日志格式化类 Date.class.php
<?php
class Datefmt{
function __construct() {}
/**
* 根据指定日期获取所在周的起始时间和结束时间
*/
public function get_weekinfo_by_date($date) {
$idx = strftime("%u", strtotime($date));
$mon_idx = $idx - 1;
$sun_idx = $idx - 7;
return array(
‘week_start_day‘ => strftime(‘%Y-%m-%d‘, strtotime($date) - $mon_idx * 86400),
‘week_end_day‘ => strftime(‘%Y-%m-%d‘, strtotime($date) - $sun_idx * 86400),
);
}
/**
* 根据指定日期获取所在月的起始时间和结束时间
*/
public function get_monthinfo_by_date($date){
$ret = array();
$timestamp = strtotime($date);
$mdays = date(‘t‘, $timestamp);
return array(
‘month_start_day‘ => date(‘Y-m-1‘, $timestamp),
‘month_end_day‘ => date(‘Y-m-‘.$mdays, $timestamp)
);
}
/**
* 获取指定日期之间的各个周
*/
public function get_weeks($sdate, $edate) {
$range_arr = array();
// 检查日期有效性
$this->check_date(array($sdate, $edate));
// 计算各个周的起始时间
do {
$weekinfo = $this->get_weekinfo_by_date($sdate);
$end_day = $weekinfo[‘week_end_day‘];
$start = $this->substr_date($weekinfo[‘week_start_day‘]);
$end = $this->substr_date($weekinfo[‘week_end_day‘]);
$range = "{$start} ~ {$end}";
$range_arr[] = $range;
$sdate = date(‘Y-m-d‘, strtotime($sdate)+7*86400);
}while($end_day < $edate);
return $range_arr;
}
/**
* 获取指定日期之间的各个月
*/
public function get_months($sdate, $edate) {
$range_arr = array();
do {
$monthinfo = $this->get_monthinfo_by_date($sdate);
$end_day = $monthinfo[‘month_end_day‘];
$start = $this->substr_date($monthinfo[‘month_start_day‘]);
$end = $this->substr_date($monthinfo[‘month_end_day‘]);
$range = "{$start} ~ {$end}";
$range_arr[] = $range;
$sdate = date(‘Y-m-d‘, strtotime($sdate.‘+1 month‘));
}while($end_day < $edate);
return $range_arr;
}
/**
* 截取日期中的月份和日
* @param string $date
* @return string $date
*/
public function substr_date($date) {
if ( ! $date) return FALSE;
return date(‘m-d‘, strtotime($date));
}
/**
* 检查日期的有效性 YYYY-mm-dd
* @param array $date_arr
* @return boolean
*/
public function check_date($date_arr) {
$invalid_date_arr = array();
foreach ($date_arr as $row) {
$timestamp = strtotime($row);
$standard = date(‘Y-m-d‘, $timestamp);
if ($standard != $row) $invalid_date_arr[] = $row;
}
if ( ! empty($invalid_date_arr)) {
die("invalid date -> ".print_r($invalid_date_arr, TRUE));
}
}
}
类文件的使用
<?php
require_once "Datefmt.class.php";
$datefmt = new Datefmt();
// 输出11月1日和30日之间的各周
var_dump($datefmt->get_weeks(‘2014-11-05‘, ‘2014-11-29‘));
/*结果为
array(4) {
[0]=>
string(13) "11-03 ~ 11-09"
[1]=>
string(13) "11-10 ~ 11-16"
[2]=>
string(13) "11-17 ~ 11-23"
[3]=>
string(13) "11-24 ~ 11-30"
}
*/
// 输出2月1日和11月30日
var_dump($datefmt->get_months(‘2014-02-03‘, ‘2014-11-29‘));
/*结果为
array(10) {
[0]=>
string(13) "02-01 ~ 02-28"
[1]=>
string(13) "03-01 ~ 03-31"
[2]=>
string(13) "04-01 ~ 04-30"
[3]=>
string(13) "05-01 ~ 05-31"
[4]=>
string(13) "06-01 ~ 06-30"
[5]=>
string(13) "07-01 ~ 07-31"
[6]=>
string(13) "08-01 ~ 08-31"
[7]=>
string(13) "09-01 ~ 09-30"
[8]=>
string(13) "10-01 ~ 10-31"
[9]=>
string(13) "11-01 ~ 11-30"
}
*/
时间： 2024-09-30 23:27:49