PHP - Date Comparison

Hi Everyone. I am new to SQL and trying to write a query against the following results table that would allow me to list the subjects where the student Mary has got a higher score than Tom.   Subject Student Teacher Score Maths Tom Anderson 67 Maths Mary Anderson 68 English Tom Lewis 55 English Mary Lewis 44 French Tom Joubert 87 French Mary Joubert 76 Geography Tom Arnold 76 Geography Mary Arnold 82   I believe I should be using the join clause but am unable to get this to work.   Thanks

Hi guys I am looking for a loop which will run untill there is a difference of 10 minutes. The timestamp I wish to use is "ISO 8601 date (added in PHP 5)" [ date("c")]
If anyone know some code for this it would be much appreicated. I can do the loop its just the comparison between the two timestamps as part of the loop I have no idea where to start on.

Cheers, and thanks in advance.

I need some idea of why my code works on 2 servers except the one that it needs to work on.
Below is the code including the sites where the phpinfo is loaded.

Please help me figure this one out, it's probably simple but I don't see it.

phpinfo of the one not working as expected
phpinfo of the one that works as expected

The problem is here I think?
Quote

$insertGoTo = SITE_URL."?pg=registered&addr=".$myid;
header('Location:'.$insertGoTo);


The code is too long to be posted... in reply...

Hi i am trying to compare to arrays   $a = Array ( [q1] => no [q3] => yes [q2] => yes ); $b = Array ( [q1] => no [q3] => yes [q2] => yes );   But when i intersect them it results in one element only, dont know why???   $c = array_intersect($a,$b); print_r($c);   output -   Array ( [q1] => no )

hi everyone   i keep seeing the following Comparison Operators: 

<>

i see it used in the following context:

if ($connection <> 'SSL')
    {
    $connection = 'NONSSL';
}

be grateful if somone would tell me what it means, i looked online but could not find the symbol   thanks

I'm compiling and running C++ applications from PHP. I'm using backticks to capture the output of the applications ran. The output is just some simple text. In my case "Miles per gallon = x" where x is just a number. I cannot for the life of me get the comparison to return true. For example

Code: [Select]
$command1="./a.out1 <input1";
$a = `$command1`;

$command2="./a.out2 <input2";
$b = `$command2`;

if(strcmp($a,$b)==0){
...
}
else{
// this is always executing
...
} 
The two strings $a and $b are both "Miles per gallon = 10".

I have checked both variables using var_dump(bin2hex($a)) and get
dump1= string(42) "4d696c6573207065722067616c6c6f6e203d203130"
dump2= string(42) "4d696c6573207065722067616c6c6f6e203d203130"

Any idea on what's happening?

Hi guys , Again i facing array comparison problem   i got this after var_dump()  $a and $b array(4) { ["q1"]=> string(3) "yes" ["q4"]=> string(2) "no" ["q3"]=> string(2) "no" ["q2"]=> string(2) "no" }
array(4) { ["q1"]=> string(2) "no" ["q4"]=> string(3) "yes" ["q3"]=> string(3) "yes" ["q2"]=> string(3) "yes" }   But when i use array_intersect($a,$b).. it results this array(4) { ["q1"]=> string(3) "yes" ["q4"]=> string(2) "no" ["q3"]=> string(2) "no" ["q2"]=> string(2) "no" }   Don't know why, but there is no same value in both

Gud pm! I need some help guys!
I made this simple code to compare $check_location to $events['location'] every loop so if they are equal it should not echo what's inside the if statement..
Here's my code:

Code: [Select]
  $events_set = select_all_events($mall_id, $month, $year, $public);
while($events = mysql_fetch_array($events_set))
{
$check_location = "";
if($check_location != trim($events['event_location']))
{
$check_location = trim($events['event_location']);
echo "<tr>";
echo "<td colspan=7 id='header'>";
echo "<br />";
echo $events['event_location'];
echo "</td>";
echo "</tr>";

}

before the loop is finished, $check_location must store a new events['location']...
I know the problem is kinda simple but the comparison can't seem to work..
Thanks in advance!

Hello everyone:   I'm having trouble with code that compares a Form value ($uname) to Field values (username) from my database. In testing, I'm using the same Form data over and over, and I now have several identical records instead of just one unique record for this user.

  if (empty($_POST["uname"])) {
    $unameErr = "* Username is required";

  } else {
    $uname = test_input($_POST["uname"]);
    if (!preg_match("/^[a-zA-Z0-9]*$/",$uname)) {
      $unameErr = "* Only letters and numerals are allowed";

  } else {
      // Now sure the username is legit, we check to see if it's a
      // unique username by comparing it to all usernames already in member table.

      require_once 'login.php'; // This file contains database access credentials

      $db_conn = new mysqli($db_hostname, $db_username, $db_password, 'login');
      if($db_conn->connect_error) die ('Connect Error: ('.$db_conn->connect_errno.')'.$db_conn->connect_error);

      $query = "select username from member"; // Only selecting the field to compare to
      $result = $db_conn->query($query);
      if(!$result) die ('Database access failed: ('.$db_conn->connect_errno.')'.$db_conn->connect_error);	    

      $rows = $result->num_rows;
      for($i = 0; $i <= $rows; $i++) {
        if(mysqli_fetch_assoc($result) == $uname) { 
	$unameErr = "* Username already in use. Please choose another.";
	mysql_close($db_conn);
	exit;			
        }
     }
     $query = "insert into member values(NULL, '$uname', '$pwd1', '$fname', '$lname')";
     $result = $db_conn->query($query);
     if(!$result) die ("Database insertion failed: ".mysql_error());
    }
  }

This is my first attempt at this using PHP and am pleased that I can at least access my db. But I just can't figure out how to make this comparison check.   Thanks in advance for any help you offer.   ~Landslyde

I have this $str variable which say holds "String" and in my comparison I'm checking if it's content is "string" and it is supposed to return true but it isnt because of the case, how do I compare them without the case being an issue ?

Hi guys.

 

I have tried implementing PDO in my php. Basically, I have created a form, which will take a letter, and then pass it to the php file.

 

My hope was, whatever was entered by the user, whether that was in the guise of being manually entered by them or chosen by a dropbox etc, this would then be able to be used within the LIKE comparison. When I run my file however, I get the following message:

Error: SQLSTATE[HY093]: Invalid parameter number: no parameters were bound.

I am a little confused by this. I have used $_POST with the HTML form element, and have specified it in the SQL syntax. Can anyone please advise me as to where I am going wrong? 

Hey there,

Now usually after a while I can always solve bugs with my code but this one really has me at a halt here.

So basically I have a function that returns true if the accounts username = demo and false if it doesn't but the following if statement returns true and executes the code every time regardless of the returned value of the function like so:

Code: [Select]
if(isset($_POST['server_start']) or isset($_POST['server_stop']) or isset($_POST['server_restart']) && $Class['Account']->is_demo_account($_SESSION['account_id']) == false)


Now if I run the following code right above that:

Code: [Select]
if($Class['Account']->is_demo_account($_SESSION['account_id']) == false) echo "it isn't a demo account.";
else echo "it is a demo account.";

It will echo "it is a demo account" correctly. Now can somebody please tell me why the if statement with the post values in always return true.

Thanks for your time!

I currently am working on a fantasy golf site. I have a table where I store each users picks by tournament. I want to be able to write a small snippet of code that can compare the current date and time to the Start Time in the database and display that weeks picks. I can do this the long way by extracting the date in each row and comparing it. Is there a way that I can do it without having to write out the code for each row in the database?

this is the current code I have to do it the long way:

Code: [Select]
<?php
$result2 = mysql_query("SELECT * FROM `2010_Picks` WHERE Id = 2");
echo "<table border='1'>
<tr>
<th>Tournament</th>
<th>Player</th>
<th>Golfer</th>
</tr>";
while($row2 = mysql_fetch_array($result2))
{
$result = mysql_query("SELECT * FROM `2012_tournaments` WHERE id = 2");

while($row = mysql_fetch_array($result))
  {
  $time1 = strtotime($row['start_date_time']);  
  if ($time2 < $time1)
{
  
  echo "<tr>";
  echo "<td>" . $row2['tournament'] . "</td>";
  echo "<td>" . $row2['player'] . "</td>";
  echo "<td>" . $row2['golfer'] . "</td>";
  echo "</tr>";

}
else
echo "This did not work";
}}echo "</table>";
?>

So here is a small sample of the data I have stored in my database:


Date Start Time Tournament Jan. 2-9 2012-01-06 16:10:00 Hyundai Tournament of Champions(Monday finish) Jan. 9-15 2012-01-12 16:00:00 Sony Open in Hawaii Jan. 16-22 2012-01-19 10:00:00 Humana Challenge in partnership with the Clinton Foundation  Jan. 23-29 2012-01-26 10:00:00 Farmers Insurance Open  Jan. 30-Feb. 5 2012-02-02 09:00:00 Waste Management Phoenix Open  Feb. 6-12 2012-02-09 10:00:00 AT&T Pebble Beach National Pro-Am  Feb. 13-19 2012-02-16 11:00:00 Northern Trust Open  Feb. 20-26 2012-02-23 09:25:00 World Golf Championships-Accenture Match Play Championship  Feb. 27-March 4 2012-03-01 07:00:00 The Honda Classic  March 5-11 2012-03-08 07:00:00 World Golf Championships-Cadillac Championship  March 12-18 2012-03-15 07:00:00 Transitions Championship  March 19-25 2012-03-22 07:00:00 Arnold Palmer Invitational presented by MasterCard  March 26-April 1 2012-03-29 08:00:00 Shell Houston Open  April 2-8 2012-04-05 07:00:00 Masters Tournament # April 9-15 2012-04-12 07:00:00 RBC Heritage  April 16-22 2012-04-19 09:00:00 Valero Texas Open  April 23-29 2012-04-26 07:00:00 Zurich Classic of New Orleans  April 30-May 6 2012-05-03 07:00:00 Wells Fargo Championship  May 7-13 2012-05-10 07:00:00 THE PLAYERS Championship  May 14-20 2012-05-17 09:00:00 HP Byron Nelson Championship  May 21-27 2012-05-24 09:00:00 Crowne Plaza Invitational at Colonial  May 28-June 3 2012-05-31 07:00:00 the Memorial Tournament presented by Nationwide Insurance  June 4-10 2012-06-07 08:00:00 FedEx St. Jude Classic  June 11-17 2012-06-14 11:00:00 U.S. Open # June 18-24 2012-06-21 07:00:00 Travelers Championship  June 25-July 1 2012-06-28 07:00:00 AT&T National  July 2-8 2012-07-05 07:00:00 THe Greenbrier Classic  July 9-15 2012-07-12 08:00:00 John Deere Classic  July 16-22 2012-07-19 01:00:00 The Open Championship # July 23-29 2012-07-26 07:00:00 RBC Canadian Open  July 30-Aug. 5 2012-08-02 07:00:00 World Golf Championships-Bridgestone Invitational  Aug. 6-12 2012-08-09 07:00:00 PGA Championship # Aug. 13-19 0000-00-00 00:00:00 Off week Aug. 20-26 2012-08-23 07:00:00 The Barclays  Aug. 27-Sept. 3 2012-08-30 07:00:00 Deutsche Bank Championship  (Monday Finish) Sept. 3-9 2012-09-06 07:00:00 BMW Championship  Sept. 10-16 0000-00-00 00:00:00 Off week Sept. 17-23 2012-09-20 10:00:00 TOUR Championship by Coca-Cola 

Hi all, I'm new here (first post) so hopefully you'll all go easy on me

I'm created a price comparison website for cameras and lenses. I will have around fifteen retailers on the site. Now I need to scrape each of their websites for the prices - this I can do. However, need a little help and advice on the best way to go about tackling this...is it best to create one big script or have various ones for each retailer, etc?

Any help would be appreciated greatly