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How can I compare two dates in PHP?
The date is stored in the database in the following format
2011-10-2
If I wanted to compare today's date against the date in the database to see which one is greater, how would I do it?
I tried this,
$today = date("Y-m-d");
$expire = $row->expireDate //from db
if($today < $expireDate) { //do something; }
but it doesn't really work that way. What's another way of doing it?
If all your dates are posterior to the 1st of January of 1970, you could use something like:
$today = date("Y-m-d");
$expire = $row->expireDate; //from database
$today_time = strtotime($today);
$expire_time = strtotime($expire);
if ($expire_time < $today_time) { /* do Something */ }
If you are using PHP 5 >= 5.2.0, you could use the DateTime class:
$today_dt = new DateTime($today);
$expire_dt = new DateTime($expire);
if ($expire_dt < $today_dt) { /* Do something */ }
Or something along these lines.
in the database the date looks like this 2011-10-2
Store it in YYYY-MM-DD and then string comparison will work because '1' > '0', etc.
Just to compliment the already given answers, see the following example:
$today = new DateTime('');
$expireDate = new DateTime($row->expireDate); //from database
if($today->format("Y-m-d") < $expireDate->format("Y-m-d")) {
//do something;
}
Update:
Or simple use old-school date() function:
if(date('Y-m-d') < date('Y-m-d', strtotime($expire_date))){
//echo not yet expired!
}
I would'nt do this with PHP.
A database should know, what day is today.( use MySQL->NOW() for example ), so it will be very easy to compare within the Query and return the result, without any problems depending on the used Date-Types
SELECT IF(expireDate < NOW(),TRUE,FALSE) as isExpired FROM tableName
$today = date('Y-m-d');//Y-m-d H:i:s
$expireDate = new DateTime($row->expireDate);// From db
$date1=date_create($today);
$date2=date_create($expireDate->format('Y-m-d'));
$diff=date_diff($date1,$date2);
//echo $timeDiff;
if($diff->days >= 30){
echo "Expired.";
}else{
echo "Not expired.";
}
Here's a way on how to get the difference between two dates in minutes.
// set dates
$date_compare1= date("d-m-Y h:i:s a", strtotime($date1));
// date now
$date_compare2= date("d-m-Y h:i:s a", strtotime($date2));
// calculate the difference
$difference = strtotime($date_compare1) - strtotime($date_compare2);
$difference_in_minutes = $difference / 60;
echo $difference_in_minutes;
You can convert the dates into UNIX timestamps and compare the difference between them in seconds.
$today_date=date("Y-m-d");
$entered_date=$_POST['date'];
$dateTimestamp1 = strtotime($today_date);
$dateTimestamp2 = strtotime($entered_date);
$diff= $dateTimestamp1-$dateTimestamp2;
//echo $diff;
if ($diff<=0)
{
echo "Enter a valid date";
}
I had that problem too and I solve it by:
$today = date("Ymd");
$expire = str_replace('-', '', $row->expireDate); //from db
if(($today - $expire) > $NUMBER_OF_DAYS)
{
//do something;
}
Here's my spin on how to get the difference in days between two dates with PHP.
Note the use of '!' in the format to discard the time part of the dates, thanks to info from DateTime createFromFormat without time.
$today = DateTime::createFromFormat('!Y-m-d', date('Y-m-d'));
$wanted = DateTime::createFromFormat('!d-m-Y', $row["WANTED_DELIVERY_DATE"]);
$diff = $today->diff($wanted);
$days = $diff->days;
if (($diff->invert) != 0) $days = -1 * $days;
$overdue = (($days < 0) ? true : false);
print "<!-- (".(($days > 0) ? '+' : '').($days).") -->\n";
Found the answer on a blog and it's as simple as:
strtotime(date("Y"."-01-01")) -strtotime($newdate))/86400
And you'll get the days between the 2 dates.
This works because of PHP's string comparison logic. Simply you can check...
if ($startdate < $date) {// do something}
if ($startdate > $date) {// do something}
Both dates must be in the same format. Digits need to be zero-padded to the left and ordered from most significant to least significant. Y-m-d and Y-m-d H:i:s satisfy these conditions.
If you want a date ($date) to get expired in some interval for example a token expiration date when performing a password reset, here's how you can do:
$date = $row->expireDate;
$date->add(new DateInterval('PT24H')); // adds 24 hours
$now = new \DateTime();
if($now < $date) { /* expired after 24 hours */ }
But in your case you could do the comparison just as the following:
$today = new DateTime('Y-m-d');
$date = $row->expireDate;
if($today < $date) { /* do something */ }
first of all, try to give the format you want to the current date time of your server:
Obtain current date time
$current_date = getdate();
Separate date and time to manage them as you wish:
$current_date_only = $current_date[year].'-'.$current_date[mon].'-'.$current_date[mday];
$current_time_only = $current_date['hours'].':'.$current_date['minutes'].':'.$current_date['seconds'];
Compare it depending if you are using donly date or datetime in your DB:
$today = $current_date_only.' '.$current_time_only;
or
$today = $current_date_only;
if($today < $expireDate)
hope it helps
How can I compare two dates in PHP?
The date is stored in the database in the following format
2011-10-2
If I wanted to compare today's date against the date in the database to see which one is greater, how would I do it?
I tried this,
$today = date("Y-m-d");
$expire = $row->expireDate //from db
if($today < $expireDate) { //do something; }
but it doesn't really work that way. What's another way of doing it?
If all your dates are posterior to the 1st of January of 1970, you could use something like:
$today = date("Y-m-d");
$expire = $row->expireDate; //from database
$today_time = strtotime($today);
$expire_time = strtotime($expire);
if ($expire_time < $today_time) { /* do Something */ }
If you are using PHP 5 >= 5.2.0, you could use the DateTime class:
$today_dt = new DateTime($today);
$expire_dt = new DateTime($expire);
if ($expire_dt < $today_dt) { /* Do something */ }
Or something along these lines.
in the database the date looks like this 2011-10-2
Store it in YYYY-MM-DD and then string comparison will work because '1' > '0', etc.
Just to compliment the already given answers, see the following example:
$today = new DateTime('');
$expireDate = new DateTime($row->expireDate); //from database
if($today->format("Y-m-d") < $expireDate->format("Y-m-d")) {
//do something;
}
Update:
Or simple use old-school date() function:
if(date('Y-m-d') < date('Y-m-d', strtotime($expire_date))){
//echo not yet expired!
}
I would'nt do this with PHP.
A database should know, what day is today.( use MySQL->NOW() for example ), so it will be very easy to compare within the Query and return the result, without any problems depending on the used Date-Types
SELECT IF(expireDate < NOW(),TRUE,FALSE) as isExpired FROM tableName
$today = date('Y-m-d');//Y-m-d H:i:s
$expireDate = new DateTime($row->expireDate);// From db
$date1=date_create($today);
$date2=date_create($expireDate->format('Y-m-d'));
$diff=date_diff($date1,$date2);
//echo $timeDiff;
if($diff->days >= 30){
echo "Expired.";
}else{
echo "Not expired.";
}
Here's a way on how to get the difference between two dates in minutes.
// set dates
$date_compare1= date("d-m-Y h:i:s a", strtotime($date1));
// date now
$date_compare2= date("d-m-Y h:i:s a", strtotime($date2));
// calculate the difference
$difference = strtotime($date_compare1) - strtotime($date_compare2);
$difference_in_minutes = $difference / 60;
echo $difference_in_minutes;
You can convert the dates into UNIX timestamps and compare the difference between them in seconds.
$today_date=date("Y-m-d");
$entered_date=$_POST['date'];
$dateTimestamp1 = strtotime($today_date);
$dateTimestamp2 = strtotime($entered_date);
$diff= $dateTimestamp1-$dateTimestamp2;
//echo $diff;
if ($diff<=0)
{
echo "Enter a valid date";
}
I had that problem too and I solve it by:
$today = date("Ymd");
$expire = str_replace('-', '', $row->expireDate); //from db
if(($today - $expire) > $NUMBER_OF_DAYS)
{
//do something;
}
Here's my spin on how to get the difference in days between two dates with PHP.
Note the use of '!' in the format to discard the time part of the dates, thanks to info from DateTime createFromFormat without time.
$today = DateTime::createFromFormat('!Y-m-d', date('Y-m-d'));
$wanted = DateTime::createFromFormat('!d-m-Y', $row["WANTED_DELIVERY_DATE"]);
$diff = $today->diff($wanted);
$days = $diff->days;
if (($diff->invert) != 0) $days = -1 * $days;
$overdue = (($days < 0) ? true : false);
print "<!-- (".(($days > 0) ? '+' : '').($days).") -->\n";
Found the answer on a blog and it's as simple as:
strtotime(date("Y"."-01-01")) -strtotime($newdate))/86400
And you'll get the days between the 2 dates.
This works because of PHP's string comparison logic. Simply you can check...
if ($startdate < $date) {// do something}
if ($startdate > $date) {// do something}
Both dates must be in the same format. Digits need to be zero-padded to the left and ordered from most significant to least significant. Y-m-d and Y-m-d H:i:s satisfy these conditions.
If you want a date ($date) to get expired in some interval for example a token expiration date when performing a password reset, here's how you can do:
$date = $row->expireDate;
$date->add(new DateInterval('PT24H')); // adds 24 hours
$now = new \DateTime();
if($now < $date) { /* expired after 24 hours */ }
But in your case you could do the comparison just as the following:
$today = new DateTime('Y-m-d');
$date = $row->expireDate;
if($today < $date) { /* do something */ }
first of all, try to give the format you want to the current date time of your server:
Obtain current date time
$current_date = getdate();
Separate date and time to manage them as you wish:
$current_date_only = $current_date[year].'-'.$current_date[mon].'-'.$current_date[mday];
$current_time_only = $current_date['hours'].':'.$current_date['minutes'].':'.$current_date['seconds'];
Compare it depending if you are using donly date or datetime in your DB:
$today = $current_date_only.' '.$current_time_only;
or
$today = $current_date_only;
if($today < $expireDate)
hope it helps
How can I compare two dates in PHP?
The date is stored in the database in the following format
2011-10-2
If I wanted to compare today's date against the date in the database to see which one is greater, how would I do it?
I tried this,
$today = date("Y-m-d");
$expire = $row->expireDate //from db
if($today < $expireDate) { //do something; }
but it doesn't really work that way. What's another way of doing it?
If all your dates are posterior to the 1st of January of 1970, you could use something like:
$today = date("Y-m-d");
$expire = $row->expireDate; //from database
$today_time = strtotime($today);
$expire_time = strtotime($expire);
if ($expire_time < $today_time) { /* do Something */ }
If you are using PHP 5 >= 5.2.0, you could use the DateTime class:
$today_dt = new DateTime($today);
$expire_dt = new DateTime($expire);
if ($expire_dt < $today_dt) { /* Do something */ }
Or something along these lines.
in the database the date looks like this 2011-10-2
Store it in YYYY-MM-DD and then string comparison will work because '1' > '0', etc.
Just to compliment the already given answers, see the following example:
$today = new DateTime('');
$expireDate = new DateTime($row->expireDate); //from database
if($today->format("Y-m-d") < $expireDate->format("Y-m-d")) {
//do something;
}
Update:
Or simple use old-school date() function:
if(date('Y-m-d') < date('Y-m-d', strtotime($expire_date))){
//echo not yet expired!
}
I would'nt do this with PHP.
A database should know, what day is today.( use MySQL->NOW() for example ), so it will be very easy to compare within the Query and return the result, without any problems depending on the used Date-Types
SELECT IF(expireDate < NOW(),TRUE,FALSE) as isExpired FROM tableName
$today = date('Y-m-d');//Y-m-d H:i:s
$expireDate = new DateTime($row->expireDate);// From db
$date1=date_create($today);
$date2=date_create($expireDate->format('Y-m-d'));
$diff=date_diff($date1,$date2);
//echo $timeDiff;
if($diff->days >= 30){
echo "Expired.";
}else{
echo "Not expired.";
}
Here's a way on how to get the difference between two dates in minutes.
// set dates
$date_compare1= date("d-m-Y h:i:s a", strtotime($date1));
// date now
$date_compare2= date("d-m-Y h:i:s a", strtotime($date2));
// calculate the difference
$difference = strtotime($date_compare1) - strtotime($date_compare2);
$difference_in_minutes = $difference / 60;
echo $difference_in_minutes;
You can convert the dates into UNIX timestamps and compare the difference between them in seconds.
$today_date=date("Y-m-d");
$entered_date=$_POST['date'];
$dateTimestamp1 = strtotime($today_date);
$dateTimestamp2 = strtotime($entered_date);
$diff= $dateTimestamp1-$dateTimestamp2;
//echo $diff;
if ($diff<=0)
{
echo "Enter a valid date";
}
I had that problem too and I solve it by:
$today = date("Ymd");
$expire = str_replace('-', '', $row->expireDate); //from db
if(($today - $expire) > $NUMBER_OF_DAYS)
{
//do something;
}
Here's my spin on how to get the difference in days between two dates with PHP.
Note the use of '!' in the format to discard the time part of the dates, thanks to info from DateTime createFromFormat without time.
$today = DateTime::createFromFormat('!Y-m-d', date('Y-m-d'));
$wanted = DateTime::createFromFormat('!d-m-Y', $row["WANTED_DELIVERY_DATE"]);
$diff = $today->diff($wanted);
$days = $diff->days;
if (($diff->invert) != 0) $days = -1 * $days;
$overdue = (($days < 0) ? true : false);
print "<!-- (".(($days > 0) ? '+' : '').($days).") -->\n";
Found the answer on a blog and it's as simple as:
strtotime(date("Y"."-01-01")) -strtotime($newdate))/86400
And you'll get the days between the 2 dates.
This works because of PHP's string comparison logic. Simply you can check...
if ($startdate < $date) {// do something}
if ($startdate > $date) {// do something}
Both dates must be in the same format. Digits need to be zero-padded to the left and ordered from most significant to least significant. Y-m-d and Y-m-d H:i:s satisfy these conditions.
If you want a date ($date) to get expired in some interval for example a token expiration date when performing a password reset, here's how you can do:
$date = $row->expireDate;
$date->add(new DateInterval('PT24H')); // adds 24 hours
$now = new \DateTime();
if($now < $date) { /* expired after 24 hours */ }
But in your case you could do the comparison just as the following:
$today = new DateTime('Y-m-d');
$date = $row->expireDate;
if($today < $date) { /* do something */ }
first of all, try to give the format you want to the current date time of your server:
Obtain current date time
$current_date = getdate();
Separate date and time to manage them as you wish:
$current_date_only = $current_date[year].'-'.$current_date[mon].'-'.$current_date[mday];
$current_time_only = $current_date['hours'].':'.$current_date['minutes'].':'.$current_date['seconds'];
Compare it depending if you are using donly date or datetime in your DB:
$today = $current_date_only.' '.$current_time_only;
or
$today = $current_date_only;
if($today < $expireDate)
hope it helps
I'm trying to make something like this:
if (datetime - system date > 15 minutes) (false)
if (datetime - system date <= 15 minutes) (true)
But I'm totally lost. I don't know how to make this operation in PHP.
I'd like to see how I can pick that DateTime from my database and check if it's between the last 15 minutes of my server's time.
The type of database is MySQL.
Finally, I managed to do it thanks to Sammitch and the other ones, here i leave the snippet:
$now = time();
$target = strtotime($row[1]);
$diff = $now - $target;
// 15 minutes = 15*60 seconds = 900
if ($diff <= 900) {
$seconds = $diff;
} else {
$seconds = $diff;
}
If your dates are already in MySQL you will want to do the comparison in the query because:
MySQL has proper DATE types.
MySQL has indexes for comparison.
MySQL performs comparisons much faster than PHP.
If you filter your data in the query then less, or no time is spent transferring superfluous data back to the application.
Below is the most efficient form. If there is an index on the date column it will be used.
SELECT *
FROM table
WHERE date > DATE_SUB(NOW(), INTERVAL 15 MINUTE)
Docs: DATE_SUB()
If you need to do it in PHP:
$now = time();
$target = strtotime($date_from_db);
$diff = $now - $target;
if ( $diff > 900 ) {
// something
}
or, more succinctly:
if( time() - strtotime($date_from_db) > 900 ) {
// something
}
You have a solution for MYSQL in other answers, a good solution for PHP is:-
$now = new \DateTime();
$target = new \DateTime(getTimeStringFromDB());
$minutes = ($target->getTimestamp() - $now->getTimestamp())/60;
if($minutes < 15){
// Do some stuff
} else {
//Do some other stuff
}
the most efficient PHP/MySQL combined solution is:
$date = date('Y-m-d H:i:s', strtotime('-15 minutes'));
$data = $pdo->query("SELECT date_field > '$date' as expired from table")->fetchAll(PDO::FETCH_COLUMN);
foreach($data as $expired) {
if (!$expired) {
// Still Valid
}
}
Try this
$interval = date_create($date_from_db)->diff(new \DateTime());
if ($interval->format('%r%l')>15) {
$result = false;
} else {
$result = true;
}
I had two times in the format like 7:30:00 and 22:30:00 stored in the variables $resttimefrom and $resttimeto respectively.
I want to check whether the current time is between these two values. I am checking this with the code
$time = date("G:i:s");
if ($time > $resttimefrom and $time < $resttimeto ){
$stat = "open";
} else {
$stat = "close";
}
But I am always getting the $stat as Close. What may cause that?
you can try using strtotime
$st_time = strtotime($resttimefrom);
$end_time = strtotime($resttimeto);
$cur_time = strtotime(now);
then check
if($st_time < $cur_time && $end_time > $cur_time)
{
echo "WE ARE CLOSE NOW !!";
}
else{
echo "WE ARE OPEN NOW !!";
}
i hope this may help you..
A simple yet smart way to do this is to remove the ':' from your dates.
$resttimefrom = 73000;
$resttimeto = 223000;
$currentTime = (int) date('Gis');
if ($currentTime > $resttimefrom && $currentTime < $resttimeto )
{
$stat="open";
}
else
{
$stat="close";
}
$today = date("m-d-y ");
$now = date("m-d-y G:i:s");
if (strtotime($today . $resttimefrom) < $now && $now > strtotime($today . $resttimeto)) {
$stat = 'open';
else
$stat = 'close
Try reformatting them into something that you can compare like that. For example, numbers:
$resttimefrom = mktime(7,30,0);
$resttimeto = mktime(22,30,0);
$time = mktime(date('H'),date('i'),date('s'));
You are comparing strings.
Convert the Time Strings to timestamps with strtotime().
Then compare against time().
Just convert your dates to a Unix Timestamp, compare them, you have your results! It might look something like this:
$time =date("G:i:s");
$time1 = strtotime($time);
$resttimefrom1 = strtotime($resttimefrom );
$resttimeto1 = strtotime($resttimeto );
if ($time1 >$resttimefrom and $time1 <$resttimeto)
{
$stat="open";
}
else
{
$stat="close";
}
The date function returns a string, so the comparison you're making would be a string comparison - so 7:30 would be more than 22:30
It would be much better to use mktime, which will return a Unix timestamp value (integer) so it would make for a better comparison
$currentTime = mktime();
$resttimefrom = mktime(hour,min,second);
http://php.net/mktime
The trick to manipulating and comparing dates and times in PHP is to store date/time values in an integer variable and to use the mktime(), date() and strtotime() functions. The integer repesentation of a date/time is the number of seconds since midnight, 1970-Jan-1, which is referred to as the 'epoch'. Once your date/time is in integer form you'll be able to efficiently compare it to other dates that are also in integer form.
Of course since you'll most likely be receiving date/time values from page requests and database select queries you'll need to convert your date/time string into an integer before you can do any comparison or arithmetic.
Assuming you are sure that the $resttimefrom and $resttimeto variables contain properly formatted time you can use the strtotime() function to convert your string time into an integer. strtotime() takes a string that is formatted as a date and converts it to the number of seconds since epoch.
$time_from = strtotime($resttimefrom);
$time_to = strtotime($resttimeto);
Side note: strtotime() always returns a full date in integer form. If your string doesn't have a date, only a time, strtotime() return today's date along with the time you gave in the string. This is not important to you, though, because the two dates returned by strtotime() will have the same date and comparing the two variables will have the desired effect of comparing the two times as the dates cancel each other out.
When you compare the two integers keep in mind that the earlier the date/time is, the smaller its integer value will be. So if you want to see if $time_from is earlier than $time_to, you would have this:
if ($time_from < $time_to)
{
// $time_from is ealier than $time_to
}
Now to compare a date/time with the current system date/time, just use mktime() with no parameters to represent the current date/time:
if ($time_from < mktime())
{
// $time_from is in the past
}
$firstTime = '1:07';
$secondTime = '3:01';
list($firstMinutes, $firstSeconds) = explode(':', $firstTime);
list($secondMinutes, $secondSeconds) = explode(':', $secondTime);
$firstSeconds += ($firstMinutes * 60);
$secondSeconds += ($secondMinutes * 60);
$difference = $secondSeconds - $firstSeconds;
$Time1 = date_parse($time);
$seconds1 = $Time1['hour'] * 3600 + $Time1['minute'] * 60 + $Time1['second'];
$Time2 = date_parse($current_time);
$seconds2 = Time2['hour'] * 3600 + Time2['minute'] * 60 + Time2['second'];
$actula_time = $seconds1 - $seconds2;
echo floor($actula_time / 3600) .":". floor(($actula_time / 60)%60) .":". $actula_time%60;
As Col. Shrapnel Said i am doing by converting all the time in to seconds and then compare it with current time's total seconds