strtotime() function to get text string to unix timestamp and then date to different format of date and time

Strtotime gives Unix timestamp starting from 1st Jan 1970 00:00:00 GMT;

echo strtotime('now');

Output is here

1702241904

Comparing two dates

By using strtotime we can compare two dates and return the highest ( or lowest ) date of them. Here is the code

$dt1='25-12-2015'; // First Date one in a variable
$dt2='01-07-2016'; // Second Date in a variable

$dt11=strtotime($dt1); // Converting first date to timestamp
$dt22=strtotime($dt2); // Converting second date to timestamp

if($dt11 > $dt22){
$dt=$dt1;
}else{
$dt=$dt2;
}
echo "Highest  Date : $dt ";

Output is here

Highest Date : 01-07-2016

What is the weekday today ?

echo date('D',strtotime('now'))

Check all the Date and time formats here
Using strtotime with date() to get formatted date and time output.

Code	Output
date('m-d-Y',strtotime('now'))	12-11-2023
date('m-d-Y',strtotime('11 July 2016'))	07-11-2016
date('m-d-Y',strtotime('+1 day'))	12-12-2023
date('m-d-Y',strtotime('+1 week'))	12-18-2023
date('m-d-Y',strtotime('+1 month'))	01-11-2024
date('m-d-Y',strtotime('+1 month 3 days'))	01-14-2024
date('m-d-Y',strtotime('+2 months -1 day'))	02-10-2024
date('m-d-Y',strtotime('Wednesday'))	12-13-2023
date('m-d-Y',strtotime('Sunday +1 day'))	12-18-2023
date('m-d-Y',strtotime('first day of this month'))	12-01-2023
date('m-d-Y',strtotime('last day of this month'))	12-31-2023
date('m-d-Y',strtotime('first day of next month'))	01-01-2024
date('m-d-Y',strtotime('last day of next month'))	01-31-2024
date('m-d-Y',strtotime('first day of previous month'))	11-01-2023
date('m-d-Y',strtotime('last day of previous month'))	11-30-2023
date('m-d-Y',strtotime('+5 years '))	12-11-2028
With Date & Time
date('m-d-Y H:i:s',strtotime('+1 hour '))	12-11-2023 03:28:24
date('m-d-Y H:i:s',strtotime('+10 minutes '))	12-11-2023 02:38:24
date('m-d-Y H:i:s',strtotime('+20 seconds '))	12-11-2023 02:28:44
date('m-d-Y',strtotime('last day of next month +1 Hour'))	01-31-2024 : 03
date('m-d-Y',strtotime('first day of next month +1 Hour 20 minutes'))	01-01-2024 : 03 : 48 : 24
Fixed Date
date('m-d-Y',strtotime('25-12-2012 +5 years '))	12-25-2017
date('m-d-Y',strtotime('25-12-2012 +1 month 1 week '))	02-01-2013
date('m-d-Y',strtotime('12-06-2018 next Monday '))	06-18-2018
date('d-M-Y',strtotime('07-06-2018 next Wednesday'))	13-Jun-2018

Date object by using similar string by using DateTime() Date Picker using JQuery

Other ways to get Unix Timestamp

Function	Description
mktime()	getting time stamp of input date and time
gettimestamp()	Getting Timestamp from date object

PHP Date Functions Adding Date by using DateInterval Today Date using Date()

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strtotime to get Unix timestamp

Comparing two dates

Other ways to get Unix Timestamp

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