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

1675795240

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'))	02-08-2023
date('m-d-Y',strtotime('11 July 2016'))	07-11-2016
date('m-d-Y',strtotime('+1 day'))	02-09-2023
date('m-d-Y',strtotime('+1 week'))	02-15-2023
date('m-d-Y',strtotime('+1 month'))	03-08-2023
date('m-d-Y',strtotime('+1 month 3 days'))	03-11-2023
date('m-d-Y',strtotime('+2 months -1 day'))	04-07-2023
date('m-d-Y',strtotime('Wednesday'))	02-08-2023
date('m-d-Y',strtotime('Sunday +1 day'))	02-13-2023
date('m-d-Y',strtotime('first day of this month'))	02-01-2023
date('m-d-Y',strtotime('last day of this month'))	02-28-2023
date('m-d-Y',strtotime('first day of next month'))	03-01-2023
date('m-d-Y',strtotime('last day of next month'))	03-31-2023
date('m-d-Y',strtotime('first day of previous month'))	01-01-2023
date('m-d-Y',strtotime('last day of previous month'))	01-31-2023
date('m-d-Y',strtotime('+5 years '))	02-08-2028
With Date & Time
date('m-d-Y H:i:s',strtotime('+1 hour '))	02-08-2023 01:10:40
date('m-d-Y H:i:s',strtotime('+10 minutes '))	02-08-2023 00:20:40
date('m-d-Y H:i:s',strtotime('+20 seconds '))	02-08-2023 00:11:00
date('m-d-Y',strtotime('last day of next month +1 Hour'))	03-31-2023 : 01
date('m-d-Y',strtotime('first day of next month +1 Hour 20 minutes'))	03-01-2023 : 01 : 30 : 40
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 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

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strtotime to get Unix timestamp

Comparing two dates

Other ways to get Unix Timestamp

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