I want to update 'duration' and 'end_time' field in same query/action. 'end_time' field filled current time, 'duration' field filled from different minute between 'start' and 'end_time' field. when i execute this update, the result in 'duration' field is 0. How to get end_time and duration in same time.
this is the php code :
<?php
include("koneksi.php");
$id = $_GET['id'];
$start = gmdate("Y-m-d H:i:s", time()+60*60*7);
$end_time = gmdate("Y-m-d H:i:s", time()+60*60*7);
$duration = $_POST['duration'];
$query = "update billing set end_time='$end_time', duration = TIMESTAMPDIFF(MINUTE, '$start', '$end_time') where id='$id'";
$result = mysql_query($query);
if ($result){
echo '<script language="javascript">window.location = "../?p=los"</script>';
} ?>
Duration is being set to 0 because $start and $end_time are the same.
Consider your code:
$start = gmdate("Y-m-d H:i:s", time()+60*60*7);
$end_time = gmdate("Y-m-d H:i:s", time()+60*60*7);
$query = "... TIMESTAMPDIFF(MINUTE, '$start', '$end_time') ...";
Because $start == $end_time, the difference will always be 0.
You probably want to use the value of start_time already stored in the database, not the recently created php variable $start. Perhaps something like this:
$query = "
update billing set
end_time='$end_time',
duration = TIMESTAMPDIFF(MINUTE, start_time, '$end_time')
where id='$id'
";
where start_time is a column in the database.
Note: mysql_* functions are deprecated, and you are susceptible to SQL injection. Consider using mysqli or pdo and utilize prepared statements.
thank you for your answer, and this is my fix code
$query = "update billing set , end_time='$end_time',
duration = TIMESTAMPDIFF(MINUTE, start, '$end_time'),
cost = TIMESTAMPDIFF(MINUTE, start, '$end_time') * (SELECT basiccost from costed where id ='1')
where id='$id'";
Related
I have 3 records in the database matching the criteria but when I run query with between clause it is getting 0 records.
$current_date = date('m-d-Y', strtotime('monday this week'));
$upcoming_date = date('m-d-Y', strtotime('monday next week'));
$sql = mysqli_query($connection, "SELECT * FROM result WHERE test_date BETWEEN $current_date AND $upcoming_date AND login = '".$_SESSION['uid'] ."'");
$total_check = mysqli_num_rows($sql);
Here is my database
result_id`, `login`, `test_id`, `test_date`,
(1, '2', 6, '08-03-2016',
(2, '2', 5, '08-03-2016',
(3, '2', 3, '08-03-2016',
Please let me know where and what I am doing wrong as I am getting 0 results and $_SESSION['uid'] is 2
You should use ' for $current_date AND $upcoming_date
"SELECT * FROM result WHERE test_date BETWEEN '$current_date' AND '$upcoming_date' AND login = '".$_SESSION['uid'] ."'"
Use prepare statement like below to avoid SQL Injection
$stmt = $dbConnection->prepare('SELECT * FROM employees WHERE name = ?');
$stmt->bind_param('s', $name);
$stmt->execute();
$result = $stmt->get_result();
while ($row = $result->fetch_assoc()) {
// do something with $row
}
You are storing your dates incorrectly if you want to use them in range searches like BETWEEN. You must store them in DATE columns. Storing them in VARCHAR() columns is a bad idea.
You could use something like this, using STR_TO_DATE() to work around your misdesigned table.
$current_date = date('Y-m-d', strtotime('monday this week'));
$upcoming_date = date('Y-m-d', strtotime('monday next week'));
$sql = mysqli_query($connection, "SELECT * FROM result WHERE STR_TO_DATE(test_date,'%d-%m-%Y') BETWEEN '$current_date' AND '$upcoming_date' AND login = '".$_SESSION['uid'] ."'");
To ask MySQL to compare the strings 01-01-2016 and 12-31-2015, and determine that the latter comes before the former is unreasonable. String comparison is lexical. However, 2015-12-31 obviously comes before 2016-01-01.
This is a little tricky to get right, because the text string 08-08-2016 does come before 08-15-2016, by accident. But at the end of year, things collapse.
I have saved rows in my table with custom timezone.Now I want to retrieve data from those table for just today.
So here is what I tried
date_default_timezone_set('America/Los_Angeles');
$dt = new DateTime();
$today = $dt->format('Y-m-d'); //outputs 2015-12-07
$ok = mysqli_query($sqli,"SELECT * FROM `table` WHERE `date` = '$today'" );
And my row contains date in timestamp format like 2015-12-07 22:42:02
But I get empty result.
Try this:
$ok = mysqli_query($sqli,"SELECT * FROM `table` WHERE DATE(date) = CURDATE()" );
to convert time according to timezone: ConvertTimeZone
if $today='2015-12-07 22:42:02'; your query will give the result.
$today='2015-12-07 22:42:02';
$ok = mysqli_query($sqli,"SELECT * FROM `table` WHERE `date` = '$today'" );
else do pass the today date and next date and retrieve the value as given
$today='2015-12-07';
$next='2015-12-08';
$ok = mysqli_query($sqli,"SELECT * FROM `table` WHERE `date` >= '$today' and `date` <= '$next' " );
for more details refer this Oracle SQL : timestamps in where clause How to compare Timestamp in where clause
You should convert date to timestamp before passing it to mysql:
date_default_timezone_set('America/Los_Angeles');
$dt = new DateTime();
$today = $dt->format('Y-m-d'); //outputs 2015-12-07
$ok = outputs("SELECT * FROM `table` WHERE DATE_FORMAT(date,'%Y-%m-%d')= $today" );
This question already exists:
SQL order by date, time [duplicate]
Closed 9 years ago.
I have table named notify with (seeker, donor, date) columns
the date column of type (datetime) and it stores the following format YYYY-MM-DD HH:MM:SS I'm trying to SELECT 1 record with the latest date from notify table and then compare the date with the current date and calculate the number of days between tow dates..
<?php
session_start();
$email = $_GET['email'];
date_default_timezone_set('Asia/Riyadh');
$time = date("Y-m-d H:i:s");
$note = "SELECT * FROM notify WHERE seeker='".$_SESSION['email']."'AND donor='".$email."' ORDER_BY `date` DESC LIMIT 1";
$st = $conn->prepare($note);
$st->execute();
if($found = $st->fetch(PDO::FETCH_ASSOC)){
$now = $time;
$old_date = strtotime($found['date']);
$dateif = $now - $old_date;
if(floor($dateif/(60*60*24)) >= 7){
echo "the difference between tow dates is 7 days or more";
} else { echo "difference between tow dates is less than 7 days";}
}
?>
the code is not working ! i have only one record in my notify table with this value in date 2013-04-22 09:15:47
First of all, you should use prepared statements like this:
$note = "SELECT *
FROM notify
WHERE seeker=:seeker AND donor=:donor
ORDER BY `date` DESC
LIMIT 1";
$st = $conn->prepare($note);
$st->execute(array(
':seeker' => $_SESSION['email'],
':donor' => $email,
);
Without the place holders you're still open to SQL injection.
Second, you can't compare a string with an integer in this way:
$now = $time; // string
$old_date = strtotime($found['date']); // integer
$dateif = $now - $old_date; // dunno?
You should compare apples with apples:
$seven_days_ago = strtotime('-7 days');
$old_date = strtotime($found['date']);
if ($old_date > $seven_days_ago) {
echo "difference between tow dates is less than 7 days";
} else {
echo "the difference between tow dates is 7 days or more";
}
Since your date column doesn't exist, there's no point in ordering by it. Also, you're exposed to SQL injection in the case where $_SESSION['email'] is not secured.
So, the correct form would be to use prepared statements, as well as order by the right column. (assuming PDO, you can use mysqli as well):
/** #var PDO $pdo - Assuming a PDO connection. */
$query = "SELECT * FROM `user` WHERE `ID` = :email ORDER BY `time` DESC";
$stmt = $pdo->prepare($query);
$stmt->execute(array($_SESSION['email']));
$result = $stmt->fetchAll(PDO::FETCH_ASSOC); //Get all results in an associated array form.
Jack's answer shows you how to use prepared statements correctly. Here is the code to simplify the date calculation using DATEDIFF().
$note = "SELECT *, DATEDIFF(NOW(), `date`) AS date_diff
FROM notify
WHERE seeker=:seeker AND donor=:donor
ORDER_BY `date` DESC
LIMIT 1";
$st = $conn->prepare($note);
$st->execute(array(
':seeker' => $_SESSION['email'],
':donor' => $email,
);
$row = $st->fetch(PDO::FETCH_ASSOC);
// do something with $row
If you are attching any variables to string then you need to concatinate them using dot and oder by will come after where condition and inside $_SESSION you missed quotes
$query = "SELECT * FROM user WHERE ID='".$_SESSION['email']."' ORDER_BY date, time";
For retrieving latest date from database please try executing following sql query
$query="SELECT * FROM user WHERE ID='".mysql_real_escape_string($_SESSION[email])."' ORDER_BY date,time desc limit 1";
In order to retrieve latest date you need to sort field for date in descending order
$note = "SELECT * FROM notify WHERE seeker=' ".$_SESSION['email']. " ' AND donor=' ".$email." ' ORDER_BY date DESC LIMIT 1";
have you try to order by desc? as shown bellow:
$note = "SELECT * FROM notify
WHERE
seeker=' ".$_SESSION['email']. " '
AND
donor=' ".$email." ' ORDER_BY date DESC LIMIT 1";
you forgot ` here around date. date is reserved word in mysql,
if you want to use it as column name place ` around it.
EDIT also you have extra space remove it
$note = "SELECT * FROM notify WHERE seeker='".$_SESSION['email']. "'
AND donor='".$email."' ORDER_BY `date` LIMIT 1";
This question already exists:
SQL order by date, time [duplicate]
Closed 9 years ago.
I have table named notify with (seeker, donor, date) columns
the date column of type (datetime) and it stores the following format YYYY-MM-DD HH:MM:SS I'm trying to SELECT 1 record with the latest date from notify table and then compare the date with the current date and calculate the number of days between tow dates..
<?php
session_start();
$email = $_GET['email'];
date_default_timezone_set('Asia/Riyadh');
$time = date("Y-m-d H:i:s");
$note = "SELECT * FROM notify WHERE seeker='".$_SESSION['email']."'AND donor='".$email."' ORDER_BY `date` DESC LIMIT 1";
$st = $conn->prepare($note);
$st->execute();
if($found = $st->fetch(PDO::FETCH_ASSOC)){
$now = $time;
$old_date = strtotime($found['date']);
$dateif = $now - $old_date;
if(floor($dateif/(60*60*24)) >= 7){
echo "the difference between tow dates is 7 days or more";
} else { echo "difference between tow dates is less than 7 days";}
}
?>
the code is not working ! i have only one record in my notify table with this value in date 2013-04-22 09:15:47
First of all, you should use prepared statements like this:
$note = "SELECT *
FROM notify
WHERE seeker=:seeker AND donor=:donor
ORDER BY `date` DESC
LIMIT 1";
$st = $conn->prepare($note);
$st->execute(array(
':seeker' => $_SESSION['email'],
':donor' => $email,
);
Without the place holders you're still open to SQL injection.
Second, you can't compare a string with an integer in this way:
$now = $time; // string
$old_date = strtotime($found['date']); // integer
$dateif = $now - $old_date; // dunno?
You should compare apples with apples:
$seven_days_ago = strtotime('-7 days');
$old_date = strtotime($found['date']);
if ($old_date > $seven_days_ago) {
echo "difference between tow dates is less than 7 days";
} else {
echo "the difference between tow dates is 7 days or more";
}
Since your date column doesn't exist, there's no point in ordering by it. Also, you're exposed to SQL injection in the case where $_SESSION['email'] is not secured.
So, the correct form would be to use prepared statements, as well as order by the right column. (assuming PDO, you can use mysqli as well):
/** #var PDO $pdo - Assuming a PDO connection. */
$query = "SELECT * FROM `user` WHERE `ID` = :email ORDER BY `time` DESC";
$stmt = $pdo->prepare($query);
$stmt->execute(array($_SESSION['email']));
$result = $stmt->fetchAll(PDO::FETCH_ASSOC); //Get all results in an associated array form.
Jack's answer shows you how to use prepared statements correctly. Here is the code to simplify the date calculation using DATEDIFF().
$note = "SELECT *, DATEDIFF(NOW(), `date`) AS date_diff
FROM notify
WHERE seeker=:seeker AND donor=:donor
ORDER_BY `date` DESC
LIMIT 1";
$st = $conn->prepare($note);
$st->execute(array(
':seeker' => $_SESSION['email'],
':donor' => $email,
);
$row = $st->fetch(PDO::FETCH_ASSOC);
// do something with $row
If you are attching any variables to string then you need to concatinate them using dot and oder by will come after where condition and inside $_SESSION you missed quotes
$query = "SELECT * FROM user WHERE ID='".$_SESSION['email']."' ORDER_BY date, time";
For retrieving latest date from database please try executing following sql query
$query="SELECT * FROM user WHERE ID='".mysql_real_escape_string($_SESSION[email])."' ORDER_BY date,time desc limit 1";
In order to retrieve latest date you need to sort field for date in descending order
$note = "SELECT * FROM notify WHERE seeker=' ".$_SESSION['email']. " ' AND donor=' ".$email." ' ORDER_BY date DESC LIMIT 1";
have you try to order by desc? as shown bellow:
$note = "SELECT * FROM notify
WHERE
seeker=' ".$_SESSION['email']. " '
AND
donor=' ".$email." ' ORDER_BY date DESC LIMIT 1";
you forgot ` here around date. date is reserved word in mysql,
if you want to use it as column name place ` around it.
EDIT also you have extra space remove it
$note = "SELECT * FROM notify WHERE seeker='".$_SESSION['email']. "'
AND donor='".$email."' ORDER_BY `date` LIMIT 1";
I'm trying to develop a simple php based schedule ...
This is my database table:
Let's say that current time/date is: 2012-03-21 02:00:00
PHP script should echo: Meeting 2
I have a part of the script, but no idea what to do next
<?php
$con = mysql_connect("localhost","root","");
if (!$con){die('Could not connect: ' . mysql_error());}
mysql_select_db("schedule", $con);
$current_time = date("Y-m-d H:i:s");
$result = mysql_query("SELECT * FROM events");
while($row = mysql_fetch_array($result)){
echo $row['Subject'];
}
mysql_close($con);
?>
How to filter query, to mach current time and scheduled subject? Thank you!
(if current_time is between StartTime and EndTime - echo it's Subject)
Try this query
SELECT * FROM events WHERE NOW() BETWEEN StartTime AND EndTime
Try select * from events where StartTime <= NOW() and EndTime >= NOW()
NOW() will give you current time in mysql.
Please try the following query
select * from events where current_time between startTime and endTime
Your query should like this
$result = mysql_query("SELECT * FROM events WHERE current_time between startTime and endTime);
The mysql BETWEEN operator may be of some use.
$startDate = gmdate('Y/m/d/ H:i:s','2012-03-21 02:00:00');
$endDate = gmdate('Y/m/d/ H:i:s','2012-03-21 02:23:59');
$sql = 'select subject from events
where startTime between "'.gmdate("Y/m/d H:i:s", $startDate) .
'" and "' . gmdate("Y/m/d H:i:s", $endDate).'") ';
Firstly, you're going to have to convert your StartTime and EndTime into a timestamp using strtotime so you can compare it to the current time (same thing goes for current time):
http://php.net/manual/en/function.strtotime.php
Then just say if current_time > StartTime AND current_time < EndTime echo Subject.
Something like this should work:
while($row = mysql_fetch_array($result)){
$startTime = strtotime($row['StartTime']);
$endTime = strtotime($row['StartTime']);
if (strtotime($current_time) > $startTime && strtotime($current_time) < $endTime
echo $row['Subject'];
}
putenv("TZ=Asia/Calcutta"); // To Set TimeZone
$now = date("Y-m-d H:i:s");
$sql = "select * from events where '$now' between StartTime and EndTime";