如何比较php中的24小时时间格式？

Question

I have time in 24hrs date format. For example

$after = 9;
$before = 17;

and my enter time is

$enterTime = 15;

I want to know my enter time $enterTime is outside of $after and $before time. For this, I am using this code.

if(strtotime($enterTime) > strtotime($before) && strtotime($enterTime) < strtotime($after))
{
    echo $enterTime;
    } else {
        echo"jghj";
}

Answer 1

You can't compare like this

if(strtotime($enterTime) > strtotime($before) && strtotime($enterTime) < 
strtotime($after))
{
    echo $enterTime;
} else {
    echo"jghj";
}

because, strtotime() function takes parameters Parameters ¶ time: A date/time string. Valid formats are explained in Date and Time Formats.

now: The timestamp which is used as a base for the calculation of relative dates. but you are passing integer value in strtotime(). which is invalid value.

you can compare like so

$beforeTime ="14:08:10";
$afterTime ="15:10:00";
if (strtotime(afterTime ) >= strtotime($beforeTime)) {
  echo "ok";
}