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PHP - Unique Time
Hey guys. I need to know how to get a time that is constant. What I want to achieve:
I need to make a clock on my website showing only one time (HH:MM:SS), wherever the page is requested from. And I need to use this "time" in calculations, like finding the time difference between two time values stored in my MYSQL Databases. I hope that I am clear with my question. Thanks for any help in advance! Similar TutorialsI'm having a problem with getting the timestamp to attach to the filename. Currently when it's uploaded in the database it says $timestamp in front of the filename instead of the time. Scroll down towards the bottom of the code to see it. Thanks for your help! $username = $_GET['username']; $item_id = $_GET['id']; define( 'DESIRED_IMAGE_WIDTH', 150 ); define( 'DESIRED_IMAGE_HEIGHT', 150 ); $source_path = $_FILES[ 'thumb' ][ 'tmp_name' ]; $timestamp = time(); // // Add file validation code here // list( $source_width, $source_height, $source_type ) = getimagesize( $source_path ); switch ( $source_type ) { case IMAGETYPE_GIF: $source_gdim = imagecreatefromgif( $source_path ); break; case IMAGETYPE_JPEG: $source_gdim = imagecreatefromjpeg( $source_path ); break; case IMAGETYPE_PNG: $source_gdim = imagecreatefrompng( $source_path ); break; } $source_aspect_ratio = $source_width / $source_height; $desired_aspect_ratio = DESIRED_IMAGE_WIDTH / DESIRED_IMAGE_HEIGHT; if ( $source_aspect_ratio > $desired_aspect_ratio ) { // // Triggered when source image is wider // $temp_height = DESIRED_IMAGE_HEIGHT; $temp_width = ( int ) ( DESIRED_IMAGE_HEIGHT * $source_aspect_ratio ); } else { // // Triggered otherwise (i.e. source image is similar or taller) // $temp_width = DESIRED_IMAGE_WIDTH; $temp_height = ( int ) ( DESIRED_IMAGE_WIDTH / $source_aspect_ratio ); } // // Resize the image into a temporary GD image // $temp_gdim = imagecreatetruecolor( $temp_width, $temp_height ); imagecopyresampled( $temp_gdim, $source_gdim, 0, 0, 0, 0, $temp_width, $temp_height, $source_width, $source_height ); // // Copy cropped region from temporary image into the desired GD image // $x0 = ( $temp_width - DESIRED_IMAGE_WIDTH ) / 2; $y0 = ( $temp_height - DESIRED_IMAGE_HEIGHT ) / 2; $desired_gdim = imagecreatetruecolor( DESIRED_IMAGE_WIDTH, DESIRED_IMAGE_HEIGHT ); imagecopy( $desired_gdim, $temp_gdim, 0, 0, $x0, $y0, DESIRED_IMAGE_WIDTH, DESIRED_IMAGE_HEIGHT ); // // Render the image // Alternatively, you can save the image in file-system or database // header( 'Content-type: image/jpeg' ); imagejpeg( $desired_gdim, "image_files/".'$timestamp'.$_FILES["thumb"]["name"] ); mysql_connect("localhost", "root", "", "") or die(mysql_error()); mysql_select_db("") or die(mysql_error()); $timestamp = time(); $item_image = '"$timestamp"'.$_FILES['thumb']['name']; $sql="UPDATE product SET thumb='$item_image' WHERE id = '$item_id'"; if (!mysql_query($sql)) { die('Error: ' . mysql_error()); I'm not sure I'm in the right place, but I'm looking to create a unique URL that links to the same page every time I send an email after a form is submitted on my website and have it expire after 15 days. After expiring, the link would redirect to a default page. I'm still a beginner and realize this is probably going to be a tough task, but any resources or direction provided would be much appreciated. Thanks for the help in advance! I have a mysql table which will store users email addresses (each is unique and is the primary field) and a timestamp. I have added another column called `'unique_code' (varchar(64), utf8_unicode_ci)`. What I would very much appreciate assistance with is; a) Generating a 5 digit alphanumeric code, ie: 5ABH6 b) Check all rows the 'unique_code' column to ensure it is unique, otherwise re-generate and check again c) Insert the uniquely generated 5 digit alphanumeric code into `'unique_code'` column, corresponding to the email address just entered. d) display the code on screen. What code must I put and where? **My current php is as follows:** Code: [Select] require "includes/connect.php"; $msg = ''; if($_POST['email']){ // Requested with AJAX: $ajax = ($_SERVER['HTTP_X_REQUESTED_WITH'] == 'XMLHttpRequest'); try{ if(!filter_input(INPUT_POST,'email',FILTER_VALIDATE_EMAIL)){ throw new Exception('Invalid Email!'); } $mysqli->query("INSERT INTO coming_soon_emails SET email='".$mysqli->real_escape_string($_POST['email'])."'"); if($mysqli->affected_rows != 1){ throw new Exception('You are already on the notification list.'); } if($ajax){ die('{"status":1}'); } $msg = "Thank you!"; } catch (Exception $e){ if($ajax){ die(json_encode(array('error'=>$e->getMessage()))); } $msg = $e->getMessage(); } } PHP date and time function is not showing correct time on my local system I have the following php code date_default_timezone_set("Africa/Lagos"); $date = date('d-m-y h:i:s'); echo "Server Time ".$date ."<br>"; echo "The time is " . date("h:i:sa")."<br>"; $current_datetime = date("Y-m-d") . ' ' . date("H:i:s", STRTOTIME(date('h:i:sa'))); echo "Current time1: ".$current_datetime . "<br>";
Output
Server Time 21-05-21 09:55:39
Expected Output
Server Time 21-05-21 10:55:39
Any help would be appreciated. Edited May 21 by Ponel Basically I have recently been playing around with parsing a csv file. What I am looking to do at this point is simply take the date/timestamp (part of the csv file), which is in the following format:DD/MM HH:MM:SS.100th/s For the sake of argument, lets say I have this in an array string called $csv[0] and the file has several lines that span the course of a couple hours. I wouldn't mind having to use explode() to breakup/remove the date or 100th/s IF that would make things a lot simpler. So where would I start in trying to achieve this?. The result I am looking for will simply return "X Seconds". Storing this in a string variable would be a bonus, as I plan to use this to divide a separate piece of information. Any examples or ideas would be great. Thank you. ps: Here is an example time from the csv file itself: Code: [Select] 11/19 22:23:18.143 I am trying to simulate an ad expiration and carry out an action if the ad is expired. And I cannot get the if/else to work properly... I've tried many variations and I cannot see what I am doing wrong here. Any tips please 3 hours and counting of no solution! $ad_start = time()-14 . "<br />"; // 14 days from today in the past (negative) echo $ad_start; $current_time = time() . "<br />"; // current epoch time echo $current_time; $days_past = $ad_start - $current_time; // days past echo "<br />$days_past days have past since the ad started!<br />"; if($days_past <= 14) { echo "<br />Ad is less than 14 days. Not expired."; } else { echo "<br />Ad is over 14 days. Expired."; } PHP 5.2.6 We rent PHP server space on a server in California. Several of my pages generated by PHP show the current date and time, so when the page is printed, the user knows when the data was printed. Our users could be anywhere in the US, I am in Michigan. How do I convert the server time (PDT) into local time, regardless of where the user is? Thanks. OK So I've got a datepicker that sends a date in d/m/y format. My DB stores the data in Unix Timestamp Which I can convert the date to with strtotime however this does the exact date & time. All I want is the actual day. I've spent hours trying to convert this with just the day with mixed results... Thanks. Hello, I tried to implement some PHP code to enable a web page to show "Dinner" specials versus "Lunch" specials based on the time. The business is located in the Eastern Time Zone, so I only need to routine to work based on Eastern Time (New York). What I am noticing is that the server is processing the lines of code so fast that the command to establish the correct time for the remaining code is not always being acknowledged. This line of code appears to be processing too fast for the remaining lines of code: date_default_timezone_set ( "America/New_York" ); Is there some additional code I can put in place to make sure the correct time is always ascertained? I need the $hourmin variable to always return a combination of hour + minute based on 24-hour time and Eastern Time zone. My code is as follows: <?php $name8 = file_get_contents("test/special8name.txt"); date_default_timezone_set ( "America/New_York" ); $gethour = date("H"); $getminutes = $gettimedate["minutes"]; $gettimedate = date(); $hourmin = $gethour . $getminutes; $currentday = date("l", time()); $currentdate = date("M j, Y"); if ($hourmin < 1500 && $currentday <> "Saturday" && $currentday <> "Sunday") { echo "<span class=\"namesred\">$name8 </span>"; } else if ( $hourmin > 1500 && $hourmin < 2300 && $currentday <> "Saturday" && $currentday <> "Sunday") { echo "<span class=\"namesblue\">$name8 </span>"; } else if ( $currentday == "Saturday" or $currentday == "Sunday") { echo "<span class=\"namesblue\">$name8 </span>"; } ?>
What are the differences and implications of UTC time and Zulu time?
<?php
function getArr(string $time):array
{
$dateTime = new \DateTime($time);
return [
'time'=>$time,
'timestamp'=> $dateTime->getTimestamp(),
'dateTime' => $dateTime
];
}
$arr = getArr('2020-08-05');
$arr_z = getArr('2020-08-05T00:00:00Z');
print_r($arr);
print_r($arr_z);
echo('equal timestamps: '.($arr['timestamp'] === $arr['timestamp']?'true':'false'));
Array
(
[time] => 2020-08-05
[timestamp] => 1596585600
[dateTime] => DateTime Object
(
[date] => 2020-08-05 00:00:00.000000
[timezone_type] => 3
[timezone] => UTC
)
)
Array
(
[time] => 2020-08-05T00:00:00Z
[timestamp] => 1596585600
[dateTime] => DateTime Object
(
[date] => 2020-08-05 00:00:00.000000
[timezone_type] => 2
[timezone] => Z
)
)
equal timestamps: true
This topic has been moved to Application Design. http://www.phpfreaks.com/forums/index.php?topic=316461.0 I am having a problem with PHP displaying the correct date and time. It updates as it should, but is fast by 4min and is always displaying a date in 2004. I ran a basic php script to make sure the application im using itself is not wrong. go to lunenburgledger.com/time.php Anybody had any ideas on where to check? The system time on the Windows Server 2003 is correct. The only thing I can think of is that it was converted to a virtual machine on vmware esxi, but the system time stayed right. Any ideas? Thanks! Hello PHP freaks,
my codes dont allow me to log-in to Student Home with unique id. It says "Invalid Login or Password"
this is my form
<tr bgcolor="#E1E1E1" class="stylesmall">
<td width="35%" align="left" class="style7 style1">Learner Id : </td>
<td width="65%" align="left"><input name="learner_id" type="text" id="learner_id" action="Student_Home.php" method="post"></td>
</tr>
<tr bgcolor="#E1E1E1" class="stylesmall">
<td align="left" class="style7 style1">Password:</td>
<td align="left"><input name="student_password" type="password" id="student_password"><
/td>
and this is my handler.
<?php
session_start();
include 'Connect.php';
$flag = "";
$learner_id = $_POST['learner_id'];
$student_id = $_POST['student_id'];
$student_password = $_POST['student_password'];
$query = "select last_login_date from student_information where student_id='$student_id' and student_password='$student_password'";
$result = mysql_query($query,$link_id);
if(mysql_error() != null){
die(mysql_error());
}
if($date = mysql_fetch_array($result))
{
$lastdate = $date['last_login_date'];
$date2 = date("d-m-Y h:i A",strtotime($lastdate));
$_SESSION["student_id"] = $_POST["student_id"];
$_SESSION["lastlogin"] =$date2;
$_SESSION["type"] = "Student";
mysql_query("UPDATE student_information SET last_login_date=now() where student_id='$student_id'",$link_id);
if(mysql_error() != null){
die(mysql_error());
}
header("location: Student_Home.php?id={$student_id}");
die();
}
else
{
$flag = "invalid";
header("location:Student_login.php?flag=$flag");
die();
}
?>
PLease help me PHP friends to correct my codes.
Hey everyone. I have been working on a cart for my site and I've reached an impasse. I coded up the cart, the add to cart, the delete from cart and the subtract from cart. Problem is I now see a need to put an image for everything that is added to the cart. I think i have devised a way to do it with frames, the left frame being the cart and the main frame is purely for the images. I am having trouble getting the code right between the two pages to work. I need a picture on the right of every item added to the cart. Here is the url for the cart: http://www.theblack44s.com/Merchant%20pages/index3.php I know this kind of thing can get extensive and I don't mean to take up any more of your time than necessary so if there are any suggestions or ideas of where I can find this information to learn it that would be just as good. Hey thanks for your time! A hi, im trying to create a website and only now started thinking about the security part(noob mistake). say for example i have home.php page and an index.php page. index.php is where users would sign up/log in. the login and sign up processes are all done but i was thinking of creating a unique id of some sort for when the user logs in. or something like this site (forum.phpfreaks) when we sign in, you are signed but the url stays the same = forums.phpfreaks.com. like if we were signed out we will be permanantly signed out and typing in forums.phpfreaks.com would just land us at the main page where we need to sign in.
right now ,my home.php can be accessed with or without logging in even with sessions.
hope im making sense, thanks in advanced!
**haha that rhymed.
i tried adding:
<?php echo $_SERVER[PHP_SELF] . '?name=' . $userData['name'];?> in the index.php:
<?php
ob_start();
session_start();
if(isset($_POST['login']))
{
$email = $_POST['email'];
$password = $_POST['pass'];
require "connection.php";
$emails = mysqli_real_escape_string($con, $email);
$query = "SELECT id, name, email, password, salt FROM users WHERE email = '$emails';";
$result = mysqli_query($con, $query);
if(mysqli_num_rows($result) == 0) // User not found. So, redirect to login_form again.
{
echo "<script>alert(\"User does not exist!\")</script>";
}
$userData = mysqli_fetch_array($result, MYSQLI_ASSOC);
$hash = hash('sha256', $userData['salt'] . hash('sha256', $password) );
if($hash != $userData['password'])
{
echo "<script>alert(\"Incorrect Password!\")</script>";
}else{
session_regenerate_id();
$_SESSION['sess_user_id'] = $userData['id'];
$_SESSION['sess_name'] = $userData['name'];
session_write_close();
header('Location: home.php?user=');
}
}
ob_flush();
?>
<!DOCTYPE html>
<form name="login" method="post" action="<?php echo $_SERVER[PHP_SELF] . '?name=' . $userData['name'];?>">
but i got access forbidden!
Edited by noobdood, 19 May 2014 - 10:05 PM. Howdy, The following code wil geenrate a dynamic pull-down list based on column values. Can someone help me tweak it so that is will NOT display a duplicate record value. That is, if the sponsors values in the table were Hart, Michaels, Michaels, Morella ...it would only display Hart, Michaels, Morella in the pull-down menu. <form name="form0"> <? $result = @mysql_query("select distinct sponsor from table ORDER BY sponsor ASC"); if (mysql_num_rows($result) > 0) { print "<select name=\"link\">"; ?> <option <?php if(empty($_GET['sponsor'])){ echo "selected=\"selected\""; } ?> value="<? echo "$page_name" ?>">SELECT A SPONSOR</option> <? while ($row = mysql_fetch_array($result)) { print "<option "; if($_GET['sponsor'] == $row['sponsor'] ){ echo "selected=\"selected\""; } print " value=\"index?sponsor=" . $row['sponsor'] . "\">" . $row['sponsor'] . "</option>\n"; } print "</select>"; } ?> </form> Thank you. ~Wayne Need a bit of help with some php and a few kind members helped me in the past. My code is: $query = "SELECT names FROM table WHERE type='$type'"; $result = mysql_query($query) or die(mysql_error()); while($row = mysql_fetch_array($result)) { foreach(unserialize($row['names']) as $key => $value){ echo $value . '<br />'; } } Basically, a field on my table is called names. The information in this field is serialized (so many names are together in a single field, for a single row). I want to be able to search the whole table (where type='$type' - so many rows) for all names and then show unique names only. My code above unserializes the names from each field and then lists them, but doesn't deal with any duplicates (which I need removing). I have looked at functions like "unique_array()", and have tried using it in different places but it isn't doing the job. Any help appreciated. ok so i have an array which has duplicate values in it. i used array_unique() to remove duplicate values. the array had values 1,2,2,3. after the following code: $unique = array_unique($suggest); $size = count($unique); for ($x=0;$x<=$size;$x++) { echo $unique[$x]; echo "<br>"; } it prints out 1,2 and then gives an error, "Notice: Undefined offset: 2 in E:\wamp\www\Copy of pro2\Classes.php on line 1074" and then finally 3. any ideas how i can solve this. im assuming that array_unique() assigns the index 0,1,3 of the duplicate value array to unique array at the same indexs 0,1,3. since the index 2 of duplicate array is a duplicate value it is ommited but the unique array does not have an array at index 2. Hey everyone! My upcoming site will host, potentiallly thousands of photographs, and i was wondering how to go about having a unique ip hit counter for EACH image. Obviously i dont want people refreshing the page to gain hits, therefore the hit counter will need to be dependent on the IP address. I have used google and found a few hit counters however i need to know how to make this practical as it seems like it will require a lot of databases! Thanks in advanced, Jimmy. what is the easiest way to get unqiue sub arrays based on date from within my larger array? here is what i mean in detail. I have an array that outputs this... Code: [Select] [0] => Array ( [date] => 2010-11-02 [time] => 7:00 p.m. [location] => Illinois [team1] => [team1sc] => [team2] => [team2sc] => [winner] => Illinois ) [1] => Array ( [date] => 2010-11-02 [time] => 7:15 p.m. [location] => Purdue [team1] => University of Indianapolis [team1sc] => 59 [team2] => Purdue [team2sc] => 82 [winner] => Purdue ) [2] => Array ( [date] => 2010-11-06 [time] => 3:05 p.m. [location] => Southern Illinois [team1] => University of Indianapolis [team1sc] => 58 [team2] => Southern Illinois [team2sc] => 65 [winner] => Southern Illinois ) I don't need value [ 1 ] because value [ 0 ] already has the same date! My goal is to get a list of all the unique [date]s from this entire multidemonsional array. (FYI - I know I will be loosing blocks of arrays that have duplicate dates - THATS OK). But it's a bit of a struggle for me unique array sections out of this...any help or advice would be great! thanks! |
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