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

1686191131

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'))	06-08-2023
date('m-d-Y',strtotime('11 July 2016'))	07-11-2016
date('m-d-Y',strtotime('+1 day'))	06-09-2023
date('m-d-Y',strtotime('+1 week'))	06-15-2023
date('m-d-Y',strtotime('+1 month'))	07-08-2023
date('m-d-Y',strtotime('+1 month 3 days'))	07-11-2023
date('m-d-Y',strtotime('+2 months -1 day'))	08-07-2023
date('m-d-Y',strtotime('Wednesday'))	06-14-2023
date('m-d-Y',strtotime('Sunday +1 day'))	06-12-2023
date('m-d-Y',strtotime('first day of this month'))	06-01-2023
date('m-d-Y',strtotime('last day of this month'))	06-30-2023
date('m-d-Y',strtotime('first day of next month'))	07-01-2023
date('m-d-Y',strtotime('last day of next month'))	07-31-2023
date('m-d-Y',strtotime('first day of previous month'))	05-01-2023
date('m-d-Y',strtotime('last day of previous month'))	05-31-2023
date('m-d-Y',strtotime('+5 years '))	06-08-2028
With Date & Time
date('m-d-Y H:i:s',strtotime('+1 hour '))	06-08-2023 08:55:31
date('m-d-Y H:i:s',strtotime('+10 minutes '))	06-08-2023 08:05:31
date('m-d-Y H:i:s',strtotime('+20 seconds '))	06-08-2023 07:55:51
date('m-d-Y',strtotime('last day of next month +1 Hour'))	07-31-2023 : 08
date('m-d-Y',strtotime('first day of next month +1 Hour 20 minutes'))	07-01-2023 : 09 : 15 : 31
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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