PHP - Display A Time Differently?!

Hello Everyone, I wanted to know how to Display records from a Table one by one at difference time intervals. Kindly suggest

I'm interested to know how other people keep track of time and also how they display time correctly back to the users. I'm using a third party API that I can tie into that actually gives me the userID of a user, their full name and the timezone for that user. After checking a few users data, this is an example data of what I'm working with.

userID: 234213412
first_name: foo
last_name: bar
timezone: -6

Basically when a user visits my web app, I create a new account for them and store the above data. Currently, I'm just fetching the result from time() and converting it into MySQL DateTime format and storing that into my database.

Code: [Select]
//get the current time as an integer
$php_timestamp = time();
//formats the time according to MySQL DateTime type
$this->mysql_formatted_time = date('Y-m-d H:i:s', $php_timestamp);

I would think the current way that I'm doing this is not very good because there is a possibility that I could introduce load balancing servers into the mix and they might not be located in the same region. Also, I would have no idea how to factor the time and modify it according to the timezone value.(in my above example, -6)

Can anyone help me decide what method I should use to keep all of my servers timestamps in sync and how to display the time to the end user so that it looks correct to them?

This topic has been moved to JavaScript Help.

http://www.phpfreaks.com/forums/index.php?topic=321950.0

While testing...

php seems to be changing the & symbol into a square bracket when retrieving from $_GET. I assume this is so it can still use the & to seperate variables placed into the URL.

When i print_r the $_GET i get this:
[name] => [lt;table]

My question is... is there a function which decodes this?

For example, the name, "<table>" is actually stored in my table due to html entities as you see therefore if the name is ever passed via the URL, the & messes it all up.


Furthermore, are there any other characters like this i should be looking out for?

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
The time is 09:55:39am
Current time1: 2021-05-21 09:55:39

 

Expected Output

Server Time 21-05-21 10:55:39
The time is 10:55:39am
Current time1: 2021-05-21 10:55:3

 

Any help would be appreciated.

 

Edited May 21 by Ponel

I've been doing some benchmarking for memory usage for a very resource-sensitive project I'm doing (that I probably shouldn't be using PHP for, but oh well). I came across something peculiar, and I'm trying to figure out why I get results as I do.

Here is my test file:

<?php
$string_parts = 4;
$max = 10000;
$arr = array();
$i = 0;
$start = memory_get_usage();
for(;$i<$max;$i++){
$arr[] = array_pad(array(), 4, "A");
}
$end = memory_get_usage();
printf("%d iterations, %d bytes in array\n", $max, $end-$start);

$arr2 = array();
$i = 0;
$start2 = memory_get_usage();
for(;$i<$max;$i++){
$arr2[] = array("A", "A", "A", "A");
}
$end2 = memory_get_usage();
printf("%d iterations, %d bytes in array (%.2f%%)\n", $max, $end2-$start2, ($end2-$start2)/($end-$start)*100);
?>


Output on my system:
Code: [Select]
10000 iterations, 4145696 bytes in array
10000 iterations, 5585744 bytes in array (134.74%)
A 35% memory gain for two of the same exact arrays seems really weird. Any information as to why, or perhaps any useful functions or resources would be appreciated.

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.";
}

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

but never on the first call.  Okay, I posted this on StackOverflow but no one there seems to have an answer either.  I have this simple function:

Code: [Select]
public function delete($messageID) {
$type = $this->findType($messageID);
if ($type == 'in') {
foreach ($this->inArr as $key => $value) {
if ($this->inArr[$key]->messageID != $messageID)
$implodeData[$key] = $this->inArr[$key]->messageID;
}
if (!isset($implodeData))
$imploded = '0';
else
$imploded = implode(',', $implodeData);
$result = $this->_database->updatePMUser('inArr', $imploded, 'UID', $this->UID);
$result2 = $this->_database->deletePM('messageID', $messageID);
return;
}
else {
foreach ($this->sentArr as $key => $value) {
if ($this->sentArr[$key]->messageID != $messageID)
$implodeData[$key] = $this->sentArr[$key]->messageID;
}
if (!isset($implodeData))
$imploded = '0';
else
$imploded = implode(',', $implodeData);
$result = $this->_database->updatePMUser('sentArr', $imploded, 'UID', $this->UID);
$result2 = $this->_database->deletePM('messageID', $messageID);
return;
}
}
It is a delete function for a private messaging program for a forum script I'm writing.  Anyway, here's the issue - it works!  But only sometimes.  It is called in 3 different places, always from a form processing class I have, once in the view message section to delete a message you're viewing, in a foreach from the sentbox options section and then a foreach in the inbox options section.  The inbox and sentbox option sections do that whole "delete the checked messages" for the mass removal functionality.  The delete function above works in all ways shapes and forms when I use it in single calls - like when I'm deleting a message while viewing it or when I only check one message from the inbox, etc - but when I call it multiple times (as in I have checked multiple messages) - it fully deletes one (both the message and the reference to the message in the user's db row) and then only deletes the actual message on the others (deleting the message is the call to deletePM - deleting the reference is the call to updatePMUser).

Okay, if you need further information - the function above checks the type the message is (in the inbox or in the sentbox) and then uses that to foreach through that array (inArr or sentArr) of the user.  It logs in all the messageIDs of the those that DON'T match the one we're deleting and then at the end it implodes those caught IDs into a string that is then updated in the user's row as a comma separated string of values each representing a message in the DB - you get the picture.  I realize I have some trimming to do (for one I can cut the above function down by about half by using variable variables) but I'll get to that after I get the thing working.  I can't figure out why it's doing what it's doing.  If you need the function that calls this in the foreach, I have it below.  Oh, and the thing that really boggles me is that this function is called fully for each checked message in the foreach - it fully returns and then loops - if it works once, I don't see how it wouldn't work on a second call from a loop - the variables it uses should be trashed when it leaves the function, they aren't global or object properties or anything.  Color me confused.

Thanks for any help, oh, here's one of the functions that calls it to delete checked messages (this one is for the sentbox, there is another for the inbox):

Code: [Select]
private function _processSelectedSent() {
$pmObj = unserialize(base64_decode($_POST['pmObj']));
$i=1;
foreach ($_POST as $key => $value) {
if ($value == 'marked') {
$checkedArray[$i] = $key;
$i++;
}
}
if ($_POST['submitter'] == 'Delete Selected') {
if (is_array($checkedArray)) {
foreach ($checkedArray as $key => $value)
$pmObj->delete($value);
}
else
$pmObj->delete($checkedArray[1]);
header("Location: ".HOME_PAGE.PM_PAGE."?view=sentbox&nocache=".time());
}
}

Hi guys,
I'm trying to write a script that generates a multipart plaintext/HTML email with a pdf attachment. After much research and trial & error, I seem to have reached a wall.
 
At the moment, I am testing in gmail, hotmail and Outlook 2003. Gmail displays the HTML alternative of the message and attaches the pdf document, while hotmail & Outlook only attach the pdf without displaying either of the message alternatives.
 
Here is the code:
 // Error display
  ini_set ('display_errors', 1);
  error_reporting (E_ALL | E_STRICT);
 
 // Setting a timestamp
  date_default_timezone_set('Australia/Perth');
  $timestamp = date("d/m/y H:i:s", time());
  
  // Create a boundary string. It must be unique, so we use the MD5 algorithm to generate a random hash 
  $random_hash = md5(time()); 
  
  // Read the attachment file contents into a string, encode it with MIME base64 & split it into smaller chunks
  $attachment = chunk_split(base64_encode(file_get_contents("success.pdf")));
  
  // Create the Plain text message to be sent in the email body
  $content_text = "Hello, World!! \nIs this a Plain Text alternative?";
  
  // Create the HTML message to be sent in the email body
  $content_html = "<html><body><h1>Hello, World!!</h1><p>This is <b>HTML</b> formatting.</p></body></html>";
  
  // Sending the email
  $to = "$email";
  $subject = "Test5-3.php :: $timestamp"; 
  
  $headers = "From: The Company <webmaster@example.com>\n";
  $headers .= "MIME-Version: 1.0\n";
  $headers .= "Content-Type: multipart/mixed; boundary=\"$random_hash\"\n";
  $headers .= "--$random_hash\n";
  $headers .= "Content-Type: application/pdf\n";
  $headers .= "Content-Transfer-Encoding: base64\n";
  $headers .= "Content-Disposition: attachment; filename=\"success.pdf\"\n\n";
  $headers .= "$attachment\n";
  
  $message = "Content-Type: multipart/alternative; boundary=\"$random_hash\"\n";
  $message .= "Content-Type: text/plain; charset=\"iso-8859-1\"\n"; 
  $message .= "Content-Transfer-Encoding: 7bit\n"; 
  $message .= "$content_text\n";
  $message .= "--$random_hash\n";
  $message .= "Content-Type: text/html; charset=\"iso-8859-1\"\n"; 
  $message .= "Content-Transfer-Encoding: 7bit\n"; 
  $message .= "$content_html\n";
  $message .= "--$random_hash--";
  
  // Send the data in an email
  $mail_sent = @mail ($to, $subject, $message, $headers, "[email]-froot@clarebyrnedesign.com.au[/email]");

 
(That's not the full script, but it is the relevant part of it. The full script is attached.)
 
Other variations of this code I have tried out include:
     - surrounding all the variables with ". .", eg:   $headers .= "--".$random_hash."\n";
     - sending the entire function as headers, instead of splitting it into message and headers, eg:   $headers = "From: The Company <webmaster@example.com>\n";
  $headers .= "MIME-Version: 1.0\n";
  $headers .= "Content-Type: multipart/mixed; boundary=\"$random_hash\"\n";
  $headers .= "--$random_hash\n";
  $headers .= "Content-Type: application/pdf\n";
  $headers .= "Content-Transfer-Encoding: base64\n";
  $headers .= "Content-Disposition: attachment; filename=\"success.pdf\"\n\n";
  $headers .= "$attachment\n";
  $headers .= "Content-Type: multipart/alternative; boundary=\"$random_hash\"\n";
  $headers .= "Content-Type: text/plain; charset=\"iso-8859-1\"\n"; 
  $headers .= "Content-Transfer-Encoding: 7bit\n"; 
  $headers .= "$content_text\n";
  $headers .= "--$random_hash\n";
  $headers .= "Content-Type: text/html; charset=\"iso-8859-1\"\n"; 
  $headers .= "Content-Transfer-Encoding: 7bit\n"; 
  $headers .= "$content_html\n";
  $headers .= "--$random_hash--";
 
Does anyone know why I would be having this problem? It seems that nothing I've tried will work!!
 
Thanks

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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.

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

 

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,

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>";
  }
?>