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PHP - Re-code A Number With Php, From Sql
Suppose I have a series of numbers being stored in an SQL table, which are not uniform and constantly growing. Once the numbers in the table (in sql) hit 99,999,999, they start back at 1, and do it all over again continuously until the end of time.
If I am performing calculations in PHP on these numbers (stop date-start date), is there a function that can take a look at the next cell after 99,999,999 and acknowledge that the 1 is really 100,000,000.
In the below example, instead of using 99,999,999, we used 4 as the last number before numerical reset. Once the numbers hit 4, they reset to 1. continuously.
Example1. If I were to subtract Jan 1(start) from jan 4(stop) I would have Stopdate -Startdate = 4-1 =3.
Example2. If I were to subtract Jan 4(start) from jan 7(stop) I would have Stopdate-Startdate = 3-4 =-1 but should be 7-4 for the sake of the calculation only.
Example3. If I were to subtract Jan 8(start) from jan 11(stop), I would have Stopdate-Startdate = 3-4=-1 but should be 11-8=3 but for ease of not having to be a continuous repeating thing, can be represented at 7-4. There is no need to keep a running memory towards infinity. It just needs to know that any number after some number ending in 4 is 5, instead of reseting to 1.
jan 1 2014.......1
jan 2 2014.......2
jan 3 2014.......3
jan 4 2014.......4
jan 5 2014.......1
jan 6 2014.......2
jan 7 2014.......3
jan 8 2014.......4
jan 9 2014.......1
jan10 2014......2
jan11 2014......3
Hope this is not that confusing.
Long story short, I can't do a stopdate-startdate = somenumber, if that some number keeps resetting to 1 once it reached 99,999,999. As a result, my code will work perfectly until I reach 99,999,999, then I am in trouble because 1-99,999,999 is not equal to 1, where 100,000,000 -99,999,999 = 1
thanks.
Edited by Butterbean, 24 October 2014 - 02:24 PM. Similar TutorialsI'm getting the dreaded " Invalid parameter number: number of bound variables does not match number of tokens" error and I've looked at this for days. Here is what my table looks like:
| id | int(4) | NO | PRI | NULL | auto_increment | | user_id | int(4) | NO | | NULL | | | recipient | varchar(30) | NO | | NULL | | | subject | varchar(25) | YES | | NULL | | | cc_email | varchar(30) | YES | | NULL | | | reply | varchar(20) | YES | | NULL | | | location | varchar(50) | YES | | NULL | | | stationery | varchar(40) | YES | | NULL | | | ink_color | varchar(12) | YES | | NULL | | | fontchosen | varchar(30) | YES | | NULL | | | message | varchar(500) | NO | | NULL | | | attachment | varchar(40) | YES | | NULL | | | messageDate | datetime | YES | | NULL |Here are my params:
$params = array(
':user_id' => $userid,
':recipient' => $this->message_vars['recipient'],
':subject' => $this->message_vars['subject'],
':cc_email' => $this->message_vars['cc_email'],
':reply' => $this->message_vars['reply'],
':location' => $this->message_vars['location'],
':stationery' => $this->message_vars['stationery'],
':ink_color' => $this->message_vars['ink_color'],
':fontchosen' => $this->message_vars['fontchosen'],
':message' => $messageInput,
':attachment' => $this->message_vars['attachment'],
':messageDate' => $date );
Here is my sql:
$sql = "INSERT INTO messages (user_id,recipient, subject, cc_email, reply, location,stationery, ink_color, fontchosen, message,attachment) VALUES( $userid, :recipient, :subject, :cc_email, :reply, :location, :stationery, :ink_color, :fontchosen, $messageInput, :attachment, $date);";
And lastly, here is how I am calling it:
$dbh = parent::$dbh;
$dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_WARNING);
if (empty($dbh)) return false;
$stmt = $dbh->prepare($sql);
$stmt->execute($params) or die(print_r($stmt->errorInfo(), true));
if (!$stmt) { print_r($dbh->errorInfo()); }
I know my userid is valid and and the date is set above (I've echo'd these out to make sure). Since the id is auto_increment, I do not put that in my sql (though I've tried that too), nor in my params (tried that too). What am I missing? I feel certain it is something small, but I have spent days checking commas, semi-colons and spelling. Can anyone see what I'm doing wrong?
I have build a small form that take the zip code that user enter and if is on my list will redirect to a sub domain craigslist.
I was checking all the zip codes and is pretty hard to know to what bigger city to attribute the given zip code and for that I was thinking to a simple idea to use, I am not sure how much exact will be but I think will do the trick for the moment.
The zip code range start from 00501 to 99950.
I create a array with the biggest city shown in craigslist and the zip code that correspond.
Now the tricky part, what I will do with the rest of the zip codes and my idea is to measure the distance from one to another zip code and which zip code from the array is closer from given one to take it.
<?php $zip = $_GET['zip']; $z = array ( 36830 => array ( 'auburn.craigslist.org' ), 35242 => array ( 'bham.craigslist.org' ), 36301 => array ( 'dothan.craigslist.org' ), 35630 => array ( 'shoals.craigslist.org' ), 35901 => array ( 'gadsden.craigslist.org' ) ?> Exemple: $zip= 36870 // the code received from the user 36870 - $array= ( 'auburn.craigslist.org' ), (36830 = 40) (36301 = 569) (36911 = -41) // the minus will be excluded (....etc)After checking the zip code with the ones from array, the smaller score will attribute the sub-domain correspond from the array. I hope will don t be the case when will get the same result from two zip codes:) Now I am using this rule: $zip0 = (isset($z[$zip][0]) && $z[$zip][0] != '') ? $z[$zip][0] : 'craigslist.org/about/sites#US';and I was thinking to redirect the user for a page to enter the state and the city. But I wish to make it more precises and not to involved the user so much. But if there are any other suggestions I will be glad to hear them. i've got this code: Code: [Select] <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript"> $(document).ready(function() { var number = 10; var url = "index.php?number=0"; function countdown() { setTimeout(countdown, 1000); $('#box').html("Selecting person in " + number + " seconds"); number --; if (number<0) { window.location = url; number = 0; } } }); </script> <center> <div id="box"> <?php error_reporting(0); $file = file('names.txt'); $rand_line = rand(0, sizeof($file) - 1); $line = $file[$rand_line]; if ($_GET['number']=="0") { echo $line; } else { ?> <script type="text/javascript"> countdown(); </script> <?php } ?> </div> it is meant to when the javascript number = 0 show a random line from file but it comes up with undefined index 'number' on line 28 How do you make php code repeat for a certain amount of times. I am only new to php and I am trying to make the code below repeat 6 times instead of repeating all the matching elements in the database. From my other coding experience I would use a for loop but as I am new to php I am not really sure how to implement the for and while loops together. I was trying to add an integer that incremented until it hit 6 and then would exit the while loop but I couldn't get it to work. This is probably a simple problem and any help would be appricated. Thanks. Code: [Select] <?php $subject_set = mysql_query("Select * FROM movies WHERE media = 'Movies' ORDER BY dateadded DESC", $connection); if (!$subject_set){ die("Database connection failed: " . mysql_error()); } while ($subject = mysql_fetch_array($subject_set)){?> <div class="par_element"> <div class="repeat_horizontal"> <div class="repeat_hor_picture"> <a href="<?=$subject['link']?>"> <img src=" <?=$subject['picture']?>" /></a> </div> <a href=" <?=$subject['link']?>"><?= $subject['title']?>.</a> </div> <?php } ?> Please i'm working on a project and i need to write a code that generates a unique random serial number.How can i go about it? I have a code to sum up a field called quantityHand in MySQL, in my example below, the value always return 40 as a positive number instead of 40.00- 0.00 0.00 40.00- I have used intval() or floatval() function to convert the type of variable from string to int/float but still not working. Any help please? Here is the code Code: [Select] $sql = mysql_query("SELECT DISTINCT itemNumber, itemDesc, quantityHand, SUM(quantityHand) AS quantityHand FROM inventory where itemNumber like '%$term%' GROUP BY `itemNumber` ORDER BY `itemNumber`"); while ($row = mysql_fetch_array($sql)){ echo "<b>"; echo "</td><td style=\"text-align: center;\"><b>"; echo $row['itemNumber']; echo "</td><td style=\"text-align: center;\"><b>"; echo $row['itemDesc']; //echo "</td><td style=\"text-align: right;\">"; echo "</td><td style=\"text-align: center;\"><b>"; echo $row ['quantityHand']; echo "</td></tr>"; echo "</b>"; <ul> <!-- List the rest of the articles found in the category --> <?php else : ?> <li class="otherrecentmain"><span class="title"><a href="<?php the_permalink() ?>" title="<?php the_title(); ?>"><?php the_title(); ?></a></span> <span class="meta"></span> </li> <?php endif; ?> <?php endwhile; ?> <!-- END --> </ul> For some reason, its stuck on displaying 9 articles but I want to be able to control how many I want. I may want to choose 17 or whatever etc, not sure how to add it into the php. Hello,
I have problem durring binding update query. I can't find what is causing problem.
public function Update(Entry $e)
{
try
{
$query = "update entry set string = $e->string,delimiter=$e->delimiter where entryid= $e->id";
$stmt = $this->db->mysqli->prepare($query);
$stmt->bind_param('ssi',$e->string,$e->delimiter,$e->id);
$stmt->close();
}
catch(Exception $ex)
{
print 'Error: ' .$ex->getMessage();
}
}
When I run function update I'm getting next error:Warning: mysqli_stmt::bind_param(): Number of variables doesn't match number of parameters in prepared statement
Can you help me to solve this problem ?
Edited by danchi, 17 October 2014 - 10:25 AM. I need to display a number(the number is retrieved from the db) in the form input field such that only the last 4 digits is visbile, the remaining can be masked as * or X or whatever is applicable. I know the last 4 can be obtained as follows: Code: [Select] $number=substr($number,-4,4); But when i hit the submit button the form validates the input field and checks if the number is a valid number of a specific format. Therefore when I click on the submit button then I should still be able to unmask the masked numbers or do something similar that would help me validate the whole number. Code: [Select] <input type="text" name="no" value="<?php if(!empty($number)){ echo $number;} ?>"> Hey I have a string that looks like the following: Quote top-php-tutorials-2.html I have a script that cycles through each page. The 2 in the quote above is the page number. How can I extract the number between the - and the .html and replace it with another number? I've tried Code: [Select] substr($engine->selectedcaturl, 0,-6).$v.".html"But then I realised this only works for numbers that are 1 digit long Any input would be appreciated hello, i have a start time and an end time (no dates). the following works great, except for when the start time is at night, and the end time is in the morning. im thinking if i can do an if the number is negative, add 24, that it will resolve my issue. any ideas? Code: [Select] $tbilled = $tfinish - $tstart; I am getting the result I expected with ORDER BY/GROUP BY queries WITH a troubling EXCEPTION: the data is being IN ORDER from 0 thru 9, but 10 (which in this test sample is my LARGEST quantity) is being inserted between the ONE and 2 quantity. Not sure if this will occur with ALL teen values, as well as hundreds. The column is a SMALLINT field (not sure if that makes a difference)> Is there a solution for this situation? I have to do an assignment for school where I create an html page and a separate page for php. The code is to sum two numbers and return an error if the value entered is not numeric. The sum portion is working; however the numeric validation is not. The code is he
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Enter your information in the form below</title> </head> <body> <!-- Form2.html --> <form action="Form2.php" method="post"> <fieldset><legend> Enter a number in the form below:</legend> <p><b>number 1: <input type="text" name="number1" size="4" maxlength="4" /></b></p> <p><b>number 2: <input type="text" name="number2" size="4" maxlength="4" /></b></p> </fieldset> <div align="center"><input type="submit" name="submit" value="Submit"/></div> </form> </body> </html>
<html>
<body>
<?php
$number1 = $_POST['number1'];
$number2 = $_POST['number2'];
$sum = $number1+$number2;
if (!empty($number1)&& !empty($number2))
{
if(!is_numeric($number1))
{
echo "The value you entered for number 1 is not a number. Please enter a numeric value for number 1";
}
else if(!is_numeric($number2))
{
echo "The value you entered for number 2 is not a number. Please enter a numeric value for number 2";
}
else
{
echo "The sum of the numbers is: ".$sum;
}
}
?>
</body>
</html>
Hi. Im trying to make a PHP code that will find the average number. What I want is, a lot of input fields where you can write a number in. Then my code should take these numbers and divide them with the amount of input fields that has been written in. So that some fields you don't have to write a number, and the code will still give you a correct average. My code so far: Code: [Select] <?php if (isset($_POST['calc'])) { $m=$_POST['mat']; $e=$_POST['da']; $s=$_POST['eng']; $f=$_POST['fys']; $h=$_POST['bio']; $p=$_POST['geo']; $ave=($m+$e+$s+$f+$h+$p)/; } ?> <a href="" onclick="return hs.htmlExpand(this, { headingText: 'Beregn dit Gennemsnit:' })"> <b>Beregn dit Gennemsnit: <?php echo $ave;?></b><br></br> </a> <div class="highslide-maincontent"> <form id="gennemsnit" name="form1" method="post" action=""> Matematik<input name="math" type="text" id="mat" size="3" maxlength="4" /><br /> Dansk<input name="eng" type="text" id="da" size="3" maxlength="4" /><br /> Engelsk<input name="sci" type="text" id="eng" size="3" maxlength="4" /><br /> Fysik<input name="fil" type="text" id="fys" size="3" maxlength="4" /><br /> Biologi<input name="he" type="text" id="bio" size="3" maxlength="4" /><br /> Geografi<input name="pe" type="text" id="geo" size="3" maxlength="4" /></td><br /> <input name="calc" type="submit" id="calc" value="Beregn"/><br /><br /> </form> What I need is the code of how to divide with the amount of input fields that has been written in. thanks for any help I have these numbers in an array: 14042 11130 10100 10100 9506 How can I add them all together? Was thinking about a while loop. Derp. >array_sum solved! Hi I need to take the number off of the end of a url and do some processing with it. so for example: www.something.com/something/10001 i will need to seperate them into 2 different variables, for example: $var1 = www.something.com/something/ $var2 = 10001 is this possible? Thanks <?php echo "How much money do you want landed on the account?!\n"; $landed = fgets(STDIN); $calc = ($landed * .25); $total = ($landed + $calc); echo "\nYou need to list the dummy for $".$total."...\n\n"; echo "Press enter to close this script..."; $exit = fgets(STDIN); ?> so say I enter 12000000000 which would make the $total .. $15000000000 how so I make the total have commas in it, like $15,000,000,000 Hi all I am trying to print a pattern shown below: 1 23 456 7891011 1213141516 17181920 212223 2425 26 Any know how to do it? I'm a bit stuck, I completed it with asterix. Basically this gets a number from a table on my DB, and displays the content relevent to that number...the second part checks for that number and gets other information according to that number... what i want to do is make sure that the number from the first query exists in the table from the query, and if it doesn't print out and error saying "there is no information" or whatever.. anyone have an idea? hopefully this makes sense Code: [Select] <?php require_once('Connections/myConnect.php'); $detnum = $_GET['Details']; $detinfo = mysql_query("SELECT* FROM `Agency Stores - Table 1` WHERE F11=".$detnum); $det = mysql_fetch_array($detinfo); $salesnum = $det['F3']; $salesinfo = mysql_query("SELECT* FROM `By Agency Store _` WHERE store_store=".$salesnum); $sales = mysql_fetch_array($salesinfo); if(mysql_query("SELECT* FROM `By Agency Store _` WHERE store_store=".$salesnum)){ } ?> i wanted to choose 5 random numbers from 0-20. each number represents an index in an array. is there a way to pick out 5 random items from the array. say if random number generator piked a number 22, the last item in the array is at index 20, it wud then have to go to index 0. thanks! |
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