PHP Check if 10 minutes has gone by - php

Question

I want to compare two dates with each other to see if 10 minutes has passed.
This is the code that I've got but I can't quite figure out how to do it.
I get the first date from my table (which is saved as a timestamp, example: 2017-03-26 22:33:45) and then I want to compare it with the time that is right now.
$sql = "SELECT saved_time from table1 where email = '$email'";
$stmt = $conn->prepare($sql);
$stmt->execute();
while($row = $stmt->fetch()) {
$savedTime = $row[0];
}
$now = time();
if (/*10 minutes has passed between saved time and now*/) {
echo "Your account is unlocked";
} else if (/*10 minutes hasn't passed*/) {
echo "Your account is locked";
}

Answer 1

Try This code:
$timezone = "Asia/Kolkata";// Select Timezone as of your Preference or MySQL Server Timezone
date_default_timezone_set($timezone);
$sql = "SELECT saved_time from table1 where email = :email";
$stmt = $conn->prepare($sql);
$stmt->execute(array(':email' => $email));
while($row = $stmt->fetch()) {
$savedTime = $row[0];
}
// Uncomment below Line if $savedTime is in MySQL DATETIME Format
// $savedTime = strtotime($savedTime);
$now = time();
if (round(($now - $savedTime) / 60,2) >= 10){
echo "Your account is unlocked";
} elseif (round(($now - $savedTime) / 60,2) < 10){
echo "Your account is locked";
}

Answer 2

if $now = time(); #(this will generate a timestamp)
assuming $savedTime = $row[0]; is a MySQL date field, you can do
$savedTimeTimestamp= date("Y-m-d H:i:s", $savedTime);
...now 10 time 60 seconds is 10 minutes, so
if ($now > ($savedTimeTimestamp+600))
should do the job

Answer 3

If mysql solution is fine for you, then
select * from table T where TIMESTAMPDIFF(MINUTE,.saved_time,NOW()) > 10
If you need it in php, then
$db_time = $row['saved_time'];//as you have stored in timestamp already
$curr_time = strtotime(date('Y-m-d H:i:s'));
$diff = round(abs($db_time - $curr_time) / 60,2);
if($diff > 10)
Update
select now() as curr_time, saved_time from table where COND;
then in php
$diff = $curr_time-$saved_time;
if($diff > (10*60 ))
I am not sure whether this will work. But just an idea.