PHP - Check If Variable Is Number, Decimal, Positive/negative

I just downloaded and installed IP2Location database and everything is smooth for IPv4 addresses. (If you want to get location from peoples IP the free version is he http://lite.ip2locat...ipcode-timezone) You convert the IPv4 address to an IP number and then do a database query. See he

$ip_split = split ("\.", "$ip");
$ip_num = $ip_split[3] + ($ip_split[2] * 256) + ($ip_split[1] * 256 * 256) + ($ip_split[0] * 256 * 256 * 256);

$result = mysql_query("SELECT * FROM ip2location_db11 WHERE '$ip_num' BETWEEN ip_from AND ip_to");

However I now need to do this for an IPv6 address but there is no documentation or anything I can find Googleing about how to do this for IPv6. Obviously the same method will not work as it has letters in the address as well as more numbers. There is obviously some difference to it. Anyone know what to do?   Thanks!

This topic has been moved to PHP Regex.

http://www.phpfreaks.com/forums/index.php?topic=311051.0

I have a script that adds points together based upon the placing. This is the actual script:

Code: [Select]
<? $points = 0;

if($place === '1st') {$points = $points + 50;}
elseif($place === '2nd') {$points = $points + 45;}
elseif($place === '3rd') {$points = $points + 40;}
elseif($place === '4th') {$points = $points + 35;}
elseif($place === '5th') {$points = $points + 30;}
elseif($place === '6th') {$points = $points + 25;}
elseif($place === '7th') {$points = $points + 20;}
elseif($place === '8th') {$points = $points + 10;}
elseif($place === '9th') {$points = $points + 10;}
elseif($place === '10th') {$points = $points + 10;}
elseif($place === 'CH') {$points = $points + 50;}
elseif($place === 'RCH') {$points = $points + 40;}
elseif($place === 'TT') {$points = $points + 30;}
elseif($place === 'T5') {$points = $points + 30;}
elseif($place === 'Champion') {$points = $points + 50;}
elseif($place === 'Reserve Champion') {$points = $points + 40;}

echo "Total HF Points: $points";
?>What it *should* do (my friend's script works the same way and it works) it starts at points = 0, than if there is a first place, it adds 50, and so forth until it reaches the end.

It is included into a file, in this area:

Code: [Select]
<div class="tabbertab">
<h2>Records</h2>
<? $query92 = "SELECT * FROM THISTABLE WHERE VARIABLE='$id' OR VARIABLE = '$name' ORDER BY ABS(VARIABLE), VARIABLE";
$result92 = mysql_query($query92) or die (mysql_error());

echo "<table class='record'>
<tr><th>Show</th> <th>Class</th> <th>Place</th></tr>
";

while($row92 = mysql_fetch_array($result92)) {
$class = $row92['class'];
$place = $row92['place'];
$entries = $row92['entries'];
$race = $row92['show'];
$purse = number_format($row92['purse'],2);

echo "<tr><td>$race</td> <td>$class</td> <td>$place</td></tr>";
}
?>
<tr><td colspan='3'><div align='right'><? include('includes/points.php'); ?></div></td></tr>
</table>
</div>

This is the code that is relevant. When ended here, it echoes the last place that appears in the results (such as a 5th place echoing 30 points). When I move it to be included in the while loop, it shows Total Points: 50 Total Points: 25 Total Points: 10 (depending on the results displayed on that page). What am I doing wrong?

Hello,

I'm working on an error form, and I want to check if the user inserted a number into the name field, and if so return an error.

I thought this might of worked, but it doesn't:

Code: [Select]
if(is_int($_POST['name'])){
     $arrErrors['name'] = 'Invalid name, remove numbers.';
}
Many thanks

Hi Guys just need some advice really

I would like to know if there is a way I can check if a number is in a times table

for example

if(3 is in 4 times table){ do bla bla }
the result for above will be false as 4 times table does not contain 3

if(12 is in 4 times table){ do bla bla }
the above would be true

Thanks guys

Hi,

I'm totally new to PHP and I'm afraid I don't understand a lot yet. However, I need to make this: when you fill in a number in a form, it should be displayed whether the number is odd or even. I tried the following code, which is obviously not working and I have no idea on how to fix this.

Code: [Select]
<?php 
$var = $_POST['var'];

for ($i = 0; $i < $var; $i++) {
  if ($i % 2 == 0) {
    print("even");
  } else {
   print("odd");
  }
}
?>

I was wondering if anyone knows a good way to check for an even number of each character in a string.  For example if the string is "abbacc" then it will return true as there are two of each character.  However if the string is "ababc" it will return false as there is only 1 c.  Thanks for any help

Hello,
I'm currently creating a little script, and want to assign a random number to a row in the MySQL table as soon as it will be inserted. But that number may not have been used before. How will I do this?

I tried if else thingies, but then the code would be very long (just in case it randomly picks 10 times after each other a number that exists).

$randomnumber = rand(10000000, 99999999);
if(mysql_num_rows(mysql_query("SELECT * FROM table WHERE randomnumber='".$randomnumber."')) == 1) {
  $randomnumber = rand(10000000, 99999999);
  if(mysql_num_rows(mysql_query("SELECT * FROM table WHERE randomnumber='".$randomnumber."')) == 1) {
    $randomnumber = rand(10000000, 99999999);
  }else {
   // Insert into database
  }
}else {

// Insert into database
}


I hope you understand my problem.

Regards,

hi friends could someone help with this criteria? i want to restrict entry to db if the post value number was entered into db less than 31 days ago?  

if($homePhone == '') {


        $qry = "SELECT * FROM table WHERE homePhone='$homePhone '";

        $errmsg_arr[] = 'Data not posted, number was posted by someone less than 31 days ago';

        $errflag = true;

    }

  in db i store time in datetime current timestamp like 2013-07-13 21:19:15     could someone help me out?
Edited by lovephp, 12 July 2014 - 11:36 AM.

HI - I have tried COUNT and array_count _values but they don't do what I want.

I have an array of 'quantities' relating to orders.

I want to count how many key=>value pairs have a positive value that is to say Not 0 or null or "".

So for example array ( shoes=>5, coats=> 3, ties=>0)

The answer I seek in this case would be 2 as ties is zero.

I don't want to know what the aggregate of the values are or other such info.

I have tried looping through with a foreach loop testing for $value > 0  and I failed miserably

Any ideas ?

Many Thanks !

I have the following code in my index.php:

                   <?php
                    $files = array();
                    $files = glob('download/*.iso');
                    $file = $files[count($files) - 1];
                    $strlen ( string $file ) : int  /* length of $file */
                    $filelen = $strlen -9  /* length of unwanted characters - "download/" */
                    $filename =          /* how do I get the filename starting at the 10th position  */
                   ?>

                     <div class="container">
                        <div class="divL">                       
                            <h3>Get the latest version of FoxClone iso</h3>
                          <a href="<?php echo "/{$file}";?>"><img src="images/button_get-the-app.png" alt="" width="200" height="60"></a>

I'd like to replace "Get the latest version of FoxClone iso" in the next to last line with "Get Foxclone "<?php echo "/{$filename}";?>". How do I extract just the file name from $file? I know that I have to:

1. get the length of $file
2. subtract the number of unwanted character to determine the start character (In this case, start at 10th character)
3. and extract everything from the 10th character to length of $file.

Step 3 is where I just don't know how to accomplish the task. I'd appreciate some help on this.

Thanks in advance,
Larry

how can you increase the page number in the following line until $status returns an empty result?

curl_setopt($ch, CURLOPT_HTTPHEADER, array("Accept: application/xml", "Authorization: xxxxxxxxxxxxx:xxxxxxxxxxxxxxxx", "Page: 2"));

Hi, I'm just starting PHP and I ran into a simple problem (that I can fix), but I just want to understand why my first approach doesn't work.

I was testing multiplications and additions and the result I got was unexpected.

Here is the code that doesn't work:
Code: [Select]
<?php
$number1 = 5;
$number2 = 10;

print $number1." multiplied by ".$number2." + 1000 = ".$number1*$number2+1000;
?>

Obviously, what I want as a result when I'm displaying the page is: "5 multiplied by 10 + 1000 = 1050"

What I get: "1005". That's right, nothing else. On top of getting an erroneous answer, the sentence that's supposed to display right before the equation doesn't display at all.

It's even worse if I switch it around like that:

Code: [Select]
print $number1." multiplied by ".$number2." + 1000 = ".1000+$number1*$number2;

I get an error message and nothing displays.

The obvious solution works: using a parenthesis at the beginning and at the end of the equation, which I should do regardless, but still, it's bugging me and since I just started learning PHP today, I want to understand how the code is compiled / interpreted so I don't make stupid mistakes like this one.

Thanks in advance for the replies.

Hi Guyz,

I need to check the variable $itemDescription to see if the client has entered a '1' before the item description(example: 1 table)

Reason, is the client would like to add sales tax to all NOn-Food related items of 6.25%

This is for a local auction house. It needs to be simple. i,e. Don't wanna add any more form fields. Just let the user type the number 1 before all items that need to be taxed.

Here's my code:
Code: [Select]
<?php
ob_start();
?>
<link rel="stylesheet" href="style.css" type="text/css">
<style type="text/css">

</style>
</head>

<?PHP session_start();
ob_start();
# Config settings below
# Change these to whatever you want :)
#############################

$cellsPerRow = '6';

#############################
include('connect.php');

// These queries get the amount of bidders that are in the database
$getAllBidders = mysql_query("SELECT `id` FROM bidders");
$totalBidders  = mysql_num_rows($getAllBidders);


// This section is to check if the Add New Item form has been submitted
  if($_POST['addNewItem']) {
    // Retrieve Query Strings from URL
    $itemDescription = $_POST['itemDescription'];
    $itemPrice       = $_POST['itemPrice'];
    $winningBidder   = $_POST['winningBidder'];
    $totalDeals      = $_POST['totalDeals'];
    $totalPrice      = ($totalDeals*$itemPrice);

    // Check the submitted data and make sure all is correct
    if(!$itemDescription) {
      $message = 'You must enter an Item Description.';
    } else if(!$itemPrice) {
      $message = 'You must enter an Item Price.';
    } else if(!$winningBidder) {
      $message = 'You must enter a Winning Bidder ID.';
    } else if(!$totalDeals) {
      $message = 'You must enter the amount of Deals.';
    } else if(!is_numeric($winningBidder)) {
      $message = 'The Winning Bidder ID can only be numbers.';
    } else {

      // Check to see if the bidder ID already exists
      $checkBidder = mysql_query("SELECT * FROM bidders WHERE biddersId='$winningBidder' LIMIT 1");
      $checkBidder = mysql_fetch_assoc($checkBidder);

      // If the Bidder ID does not exist, we re-direct to allow us to save the Bidder ID
      if(!$checkBidder) {

        header("Location: ?action=confirmListing&iDesc=".$itemDescription."&iPrice=".$itemPrice."&wBidder=".$winningBidder."&tDeals=".$totalDeals."");

      } else {

        // If Bidder ID exists we just insert the transaction accordingly
        mysql_query("INSERT INTO transactions (`itemDescription`, `itemPrice`, `bidderId`, `itemQty`, `totalPrice`) VALUES ('$itemDescription', '$itemPrice', '$winningBidder', '$totalDeals', '$totalPrice');");
        $message1 = 'The transaction has been successfully added.';

mysql_query("SELECT owed From bidders WHERE biddersId='$winningBidder'") or die(mysql_error());
if ($row['owed']==0) {
mysql_query("UPDATE bidders SET owed='1' WHERE biddersId='$winningBidder'") or die(mysql_error()); 
}
      }

    }

  }

// This section is to check if the Add Bidder to database form has been submitted
  if($_POST['confirmBidder']) {
    $itemDescription = $_POST['itemDescription'];
    $itemPrice       = $_POST['itemPrice'];
    $winningBidder   = $_POST['winningBidder'];
    $totalDeals      = $_POST['totalDeals'];
    $totalPrice      = ($itemPrice*$totalDeals);
    $addBidder       = $_POST['addBidder'];
$checkInput= preg_match([1]+*);


if ($itemDescription== $checkInput)
$itemPrice= $itemPrice * 6.25%;

    mysql_query("INSERT INTO transactions (`itemDescription`, `itemPrice`, `bidderId`, `itemQty`, `totalPrice`) VALUES ('$itemDescription', '$itemPrice', '$winningBidder', '$totalDeals', '$totalPrice');");
    $message1 = 'The transaction has been successfully added.';

   
    if($addBidder == 'Yes') {
      mysql_query("INSERT INTO bidders (biddersId) VALUES ('$winningBidder');");
      $message1 .= '<br> The Bidder ID has also been added.';
mysql_query("SELECT owed From bidders WHERE biddersId='$winningBidder'") or die(mysql_error());
if ($row['owed']==0) {
mysql_query("UPDATE bidders SET owed='1' WHERE biddersId='$winningBidder'") or die(mysql_error()); 
}
    }
     
 if($addBidder == 'No') {
                 $message1 = '<br><font color= "red"> Bidder has NOT been logged.</font>';
               }

   // $itemDescription = '';
   // $itemPrice       = '';
   // $winningBidder   = '';
   //  $totalDeals      = '';
   // $totalPrice      = '';
   // $addBidder       = '';
      }

       

   

 

?>


<?PHP
  // This line of code will check the current task we are doing
  if($_GET['action'] == 'confirmListing') {
    $itemDescription = $_GET['iDesc'];
    $itemPrice       = $_GET['iPrice'];
    $winningBidder   = $_GET['wBidder'];
    $totalDeals      = $_GET['tDeals'];
?>

<form name="confirmBidder" method="POST" action="?">

<?PHP
// This is the hidden data from the previous form
// Better than using sessions and GET query
?>
<input type="hidden" name="itemDescription" id="itemDescription" value="<?PHP echo $itemDescription;?>">
<input type="hidden" name="itemPrice" id="itemPrice" value="<?PHP echo $itemPrice;?>">
<input type="hidden" name="winningBidder" id="winningBidder" value="<?PHP echo $winningBidder;?>">
<input type="hidden" name="totalDeals" id="totalDeals" value="1">

<table cellpadding="0" cellspacing="1" border="0" style="background: #ffffff; margin: auto;">
 <tr>
  <td colspan="2" class="formHeader"> Add New Auction Item </td>
 </tr>
 <tr>
  <td class="formField"> Add This Bidder? </td>
  <td class="formValue"> <select name="addBidder" id="addBidder" class="input" style="width: 195px;"> <option value="Yes">Yes</option> <option value="No">No</option></select> </td>
 </tr>
 <tr>
  <td colspan="2" class="formButton">
<input type="submit" name="confirmBidder" id="confirmBidder" value="Confirm Bidder Action?">
<input type="reset" name="reset" id="reset" value="Reset Form">
  </td>
 </tr>
</table>
</form>

<?PHP
  // If the action is not to confirm a listing then show add item section
  } else {
?>

<?PHP//----- Add New Item Section -----\\?>

<?PHP
  if($message) {
    echo '<div class="Error">',$message,'</div><div style="height: 10px;"></div>';
  } else if($message1) {
    echo '<div class="Success">',$message1,'</div><div style="height: 10px;"></div>';
  }
?>

<form name="addNewItem" method="POST" action="?">
<table cellpadding="0" cellspacing="1" border="0" style="background: #ffffff; margin: auto;">
 <tr>
  <td colspan="2" class="formHeader"> Add New Auction Item </td>
 </tr>
 <tr>
  <td class="formField"> Item Description </td>
  <td class="formValue"> <input type="text" name="itemDescription" class="formText" id="itemDescription" value="<?=$itemDescription;?>" style="width: 195px;"> </td>
 </tr>
<tr>
 <td class="formField"> Item Price </td>
  <td class="formValue"> <input type="text" name="itemPrice" class="formText" id="itemPrice" value="<?=$itemPrice;?>" style="width: 195px;"> </td>
 </tr>
 <tr>
  <td class="formField"> Winning Bidder ID </td>
  <td class="formValue"> <input type="text" name="winningBidder" class="formText" id="winningBidder" style="width: 195px;"> </td>
 </tr>
 <tr>
  <td class="formField"> How Many Deals? </td>
  <td class="formValue"> <input type="text" name="totalDeals" class="formText" id="totalDeals" value="1" style="width: 195px;"> </td>
 </tr>
 <tr>
  <td colspan="2" class="formButton">
<input type="submit" name="addNewItem" id="addNewItem" value="Add New Auction Item?">
<input type="reset" name="reset" id="reset" value="Reset Form">
  </td>
 </tr>
</table>
</form>

<?PHP//----- Add New Item Section -----\\?>

<?PHP } ?>


All help appreciated to the fullest...
 

Hi ,

I have a login page that i acces via www.mydomain.com/logib.php?last_visited_page.php
however the passed in variable last_visited_page.com is not always set .

once the login script has run , when the variable it is not set i would want jump to myaccount.php
otherwise jump to last_visited_page.php

How do i check for no variable beinf present and therefore jump to myaccount.php

Many Thanks
Fraser