php中strtotime函数用法详解,strtotime详解
php中strtotime函数用法详解,strtotime详解
本文实例讲述了php中strtotime函数用法。分享给大家供大家参考。具体如下:
strtotime(字符串$时间[,诠释$现在])int strtotime(string $time [,int $now] 该函数期望得到一个包含美国英语日期格式,并会尝试解析成一个Unix时间戳(多少秒自1970年1月1日00:00:00星期一该格式),相对于现在提供的时间戳,或当前时间如果现在不提供
这个函数将使用TZ环境变量(如果有)来计算时间戳,自PHP 5.1.0有更容易的方法来确定所使用的所有/日期时间函数的时区,这一过程是解释在date_default_timezone_get()函数的一页.
解析的字符串,在PHP 5.0.0,不允许在微秒的时间,自PHP 5.0.0他们是允许的,但忽略.
现在哪些是作为计算基数相对日期使用时间戳.
返回值:在成功返回一个时间戳,否则返回FALSE,前到PHP 5.1.0,这个函数将返回失败-1.
现在我们来看看strtotime字符转换成时间的函数实例,代码如下:
复制代码 代码如下:
//function
function nextWeeksDay($date_begin,$nbrweek)
{
$nextweek=array();
for($i = 1; $i
$nextweek[$i]=date('D d M Y', strtotime('+'.$i.' week',$date_begin));
}
return $nextweek;
}
/// end function
/// example of a select date
// var
$date_begin = strtotime('06-05-2010'); //D Day Month Year - like function format.
$nbrweek=52;
// call function
$result=nextWeeksDay($date_begin,$nbrweek);
// Preview
for($i = 1; $i
echo '
- '.$result[$i];
}
?>
$str = 'Not Good';
// previous to PHP 5.1.0 you would compare with -1, instead of false
if (($timestamp = strtotime($str)) === false) {
echo "The string ($str) is bogus";
} else {
echo "$str == " . date('l dS o F Y h:i:s A', $timestamp);
}
?>
echo strtotime("now"), " ";
echo strtotime("10 September 2000"), " ";
echo strtotime("+1 day"), " ";
echo strtotime("+1 week"), " ";
echo strtotime("+1 week 2 days 4 hours 2 seconds"), " ";
echo strtotime("next Thursday"), " ";
echo strtotime("last Monday"), " ";
?>
这是一个快速函数计算在一年期间,“工作天”,“工作日”是指那些没有周末,没有假期在$数组中指定的假日,实例代码如下:
复制代码 代码如下:
function get_working_days($to_date) {
$holidays = array(
1 => array(10), //2011 ...
2 => array(11),
3 => array(21), //... 2011
4 => array(29,30), //2010 ...
5 => array(3,4,5),
6 => array(),
7 => array(19),
8 => array(11,12,13),
9 => array(20,23),
10 => array(11),
11 => array(3,23),
12 => array(23) //... 2010
);
for($to_date, $w = 0, $i = 0, $x = time(); $x
if(date("N",$x)
}
return $w;
}
//Usage:
echo get_working_days(strtotime("2011-01-08"));
希望本文所述对大家的PHP程序设计有所帮助。

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



PHP 8.4 brings several new features, security improvements, and performance improvements with healthy amounts of feature deprecations and removals. This guide explains how to install PHP 8.4 or upgrade to PHP 8.4 on Ubuntu, Debian, or their derivati

If you are an experienced PHP developer, you might have the feeling that you’ve been there and done that already.You have developed a significant number of applications, debugged millions of lines of code, and tweaked a bunch of scripts to achieve op

Visual Studio Code, also known as VS Code, is a free source code editor — or integrated development environment (IDE) — available for all major operating systems. With a large collection of extensions for many programming languages, VS Code can be c

JWT is an open standard based on JSON, used to securely transmit information between parties, mainly for identity authentication and information exchange. 1. JWT consists of three parts: Header, Payload and Signature. 2. The working principle of JWT includes three steps: generating JWT, verifying JWT and parsing Payload. 3. When using JWT for authentication in PHP, JWT can be generated and verified, and user role and permission information can be included in advanced usage. 4. Common errors include signature verification failure, token expiration, and payload oversized. Debugging skills include using debugging tools and logging. 5. Performance optimization and best practices include using appropriate signature algorithms, setting validity periods reasonably,

This tutorial demonstrates how to efficiently process XML documents using PHP. XML (eXtensible Markup Language) is a versatile text-based markup language designed for both human readability and machine parsing. It's commonly used for data storage an

A string is a sequence of characters, including letters, numbers, and symbols. This tutorial will learn how to calculate the number of vowels in a given string in PHP using different methods. The vowels in English are a, e, i, o, u, and they can be uppercase or lowercase. What is a vowel? Vowels are alphabetic characters that represent a specific pronunciation. There are five vowels in English, including uppercase and lowercase: a, e, i, o, u Example 1 Input: String = "Tutorialspoint" Output: 6 explain The vowels in the string "Tutorialspoint" are u, o, i, a, o, i. There are 6 yuan in total

Static binding (static::) implements late static binding (LSB) in PHP, allowing calling classes to be referenced in static contexts rather than defining classes. 1) The parsing process is performed at runtime, 2) Look up the call class in the inheritance relationship, 3) It may bring performance overhead.

What are the magic methods of PHP? PHP's magic methods include: 1.\_\_construct, used to initialize objects; 2.\_\_destruct, used to clean up resources; 3.\_\_call, handle non-existent method calls; 4.\_\_get, implement dynamic attribute access; 5.\_\_set, implement dynamic attribute settings. These methods are automatically called in certain situations, improving code flexibility and efficiency.
