How do I compare current time to a preset time in PHP? - php

Question

I want PHP to check if it's 8:30 AM and if it is, I want it to change a variable.
I tried,
$eightthirtyam = "08:30:00";
if(time() >= strtotime($eightthirtyam )){
$refresh = true;
}
But the boolean doesn't change. Any idea what I did wrong?

Answer 1

strtotime depends on the time zone.. so you should define timezone too.
You should set your default timezone before comparing.
http://php.net/strtotime
Example:
date_default_timezone_set('America/Los_Angeles');
$eightthirtyam = "08:30:00";
if(time() >= strtotime($eightthirtyam )){
$refresh = true;
}
http://codepad.org/GC0VA7nw

Answer 2

The function time() returns always timestamp that is timezone independent (=UTC), while strtotime() give a local time, So there is a timezone offset.
You need to subtract the timezone offset form the local time, before the compare, and check the live demo for a good understanding.

Answer 3

In php we have new DateTime function. So you can use this to match your date as give below example
$refresh = false;
$eightthirtyam = "08:30:00";
$date = new DateTime();
if($date->format('H:i:s') == $eightthirtyam)
{
$refresh = true;
}
Here is an example
$refresh = "false";
$eightthirtyam = "08:30:00";
$date = new DateTime("2017-06-07 8:30:00"); // suppose your system current time is this.
if($date->format('H:i:s') == $eightthirtyam)
{
$refresh = "true";
}
echo $refresh;
You can check answer by executing on online php editor http://www.writephponline.com/
Try above example, I think this may help you.

Answer 4

$hr= date('H:i');
if(strtotime($hr)==strtotime(08:30) ){
$refresh = true;
}
Please try this way. It will work i your case.

Answer 5

This will help you:
date_default_timezone_set('Asia/Kolkata');
$eightthirtyam = "08:30:00";
$refresh = false;
if(strtotime(date('H:i:s') == strtotime($eightthirtyam )){
$refresh = true;
}
Reference:-/ strtotime

Answer 6

the code is fine untill i know. but still if you want to do some actions, you can do something like this.
$refresh=false;
$eightthirtyam = "08:30:00";
if(time() >= strtotime($eightthirtyam ))
{
$refresh = true;
}
if($refresh)
{
//your statement is true do something here
}
else
{
//false statement
}