I have tried every combo I can think of / found and no matter what I do, my codet echos the message even if the account isn't locked out:
<?php
$infosql = "SELECT * FROM premiersounds_users WHERE customer_id = $id";
$inforesult = mysql_query($infosql) or die(mysql_error());
$info = mysql_fetch_array($inforesult);
//Get current date from server
$format="%m/%d/%y";
$c_date=strftime($format);
//set sessions
$_SESSION['current_date'] = $c_date;
//The date in the database is 10/31/11
$_SESSION['lockout_date'] = $l_date;
//Check is Current date = lockout date
if ($c_date <= $l_date) {
header("location:documnet_editors/edit_weddingplanner.php?id=$id");
}
else {
echo 'Whoops! Were sorry your account has been locked to edits
because your event is less than 48 hours from now or your event has passed.
To make changes to your event please contact your DJ.';
}
?>
<?php
//Destroy Session for Lockout Date to prevent bypasses
unset($_SESSION['lockout_date']);
?>
If your $l_date is populated, and I don't think it is, if it is stored as MM/DD/YY, you'll want to use PHP's strtotime to convert it to a unix timestamp for quick comparison:
if( strtotime($db_date) >= time() )
{
// do something
}
I would suggest comparing timestamps instead of formatted dates:
<?php
$date_a = new DateTime();
$date_b = new DateTime('2000-10-20 00:10:20');
if ($date_a->getTimestamp() > $date_b->getTimestamp()) {
echo 1;
} else {
echo 0;
}
convert your dates to unixtime for more accurate comparison. Add this function to your code:
function unix_time($date){
$unix_date = str_replace("-","/",$date);
$unix_date = str_replace(".","/",$unix_date);
$unix_date = str_replace(" pm","",$unix_date);
$unix_date = str_replace(" am","",$unix_date);
$time = strtotime($unix_date);
return $time;
}
then convert the dates to unix:
$l_date = unix_time($_SESSION['lockout_date']);
$c_date = unix_time($_SESSION['current_date']);
or you can also get the date directly from the database:
$l_date = unix_time($info['date_in_database']);
compare the dates in unix format:
if ($c_date = $l_date) {
// your code here
}
this should work.
Related
I need to extract only the day number of a user's registration date.
And extract only the day number of the current date.
Simply in an if loop, say if the day number the user registered is equal to the day number of the current date, do this, or do that.
Code:
$manager = "Manager";
$managerPRO = "ManagerPRO";
$q = $connessione->prepare("
SELECT * FROM collaboratori
WHERE cat_professionisti = ?
OR cat_professionisti = ?
");
$q->bind_param('ss', $manager,$managerPRO);
$q->execute();
$r = $q->get_result();
while($rr = mysqli_fetch_assoc($r)){
/*REGISTRATION DATE*/
$registrazione = $rr['data_registrazione'];
$timestamp = strtotime($registrazione);
echo date("d", $timestamp) .'=' ;
/*CURRENT DATE*/
$data_corrente = date('Y-m-d');
$timestamp_uno = strtotime($data_corrente);
echo date("d", $timestamp_uno);
/*CONTROL*/
if ($timestamp == $timestamp_uno){
echo "yes".'<br>';
}else{
echo "no".'<br>';
}
}
Result:
18=18no
17=18no
16=18no
16=18no
Why in the first case if 18 = 18 gives me false?
However, if I change the date of the user's registration and therefore the first 18, from 2020/11/18 to 2020/12/18, then the current month gives me yes!
I need that regardless of the month, just by checking the day if it is the same, tell me yes, where am I wrong?
You are comparing timestamps, which are measured in seconds. What you are doing is effectively comparing two different points in time, not the days of the month.
You really should be using DateTime. If you want to compare only the day part then you can do something like this.
$dt1 = new DateTime($registrazione);
$dt2 = new DateTime(); // defaults to now
if($dt1->format('d') === $dt2->format('d')) {
echo "Yes, it's the same day of the month";
} else {
echo 'no!';
}
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 want to make an advertisment manager. When an ad reaches its expiry date it becomes non-active. But when I tried to make it and tried it, all of the ads change into non-active even though they haven't reached their expiry dates.
Here's my code:
$query_banner = mysql_query("SELECT * FROM ad_tbl ORDER BY ID DESC LIMIT $from,$max_show") or die(mysql_error());
while($show=mysql_fetch_array($query_banner))
{
$no++;
if(($no%2)==0)
$color = '#f2f2f2';
else
$color = '#f9f9f9';
$expired_date = $show['expiry_date'];
$today_date = date("m/d/Y");
$expired = strtotime($expiry_date);
$today = strtotime($today_date);
if($expired > $today)
{
$valid = "yes";
}
else
{
$valid = "no";
$query_expired = mysql_query("UPDATE ad_tbl SET status='Non-Active' WHERE expiry_date <= $today") or die(mysql_error());
}
}
Try:
$expiredDateTime = new DateTime($expiry_date);
$expired = $expiredDateTime->format('U');
$today = date('U'); // This will default give you timestamp for "now", saving you a step
If that works then I fear your m/d/y format could be the root of the issue. To check you should echo your strtotime values out and stick them into a converter, see what it says.