What does strtotime mean in php?

strtotime

PHP built-in time function

(PHP 4, PHP 5)

strtotime() can create a timestamp of a certain moment in English natural language

Function syntax: int strtotime(string $time[,int $now])

Function: Convert a date and time string in US English format into a unix timestamp.

Function routines (Recommended learning: PHP programming from entry to proficiency)

<?php
echo date("Y年n月j日"，strtotime("now"));//2010年4月14日
echo date("Y年n月j日"，strtotime("8 may 2008"));//2008年5月8日
echo date("Y年n月j日"，strtotime("+1 day"));//2010年4月15日
echo date("Y年n月j日"，strtotime("last monday"));//2010年4月12日
?>

Examples

<?php
//纪念日倒记时
$time1=strtotime("2010-7-18 9:9:9");
$time2=strtotime("2010-4-18 23:42:10");
$second=$time1-$time2;
$year=floor($second/3600/24/365);//年
$temp=$second-$year*365*24*3600;
$month=floor($temp/3600/24/30);//月
$temp=$temp-$month*30*24*3600;
$day=floor($temp/3600/24);//日
$temp=$temp-$day*3600*24;
$hour=floor($temp/3600);//小时
$temp=$temp-$hour*3600;
$minute=floor($temp/60);//分
$second1=$temp-$minute*60;//秒
echo "距离培训毕业还有".$year."年".$month."月".$day."天".$hour."小时".$minute."分".$second1."秒";
?>

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