PHP - Logical If Statements.

fixed.

Hi guys, i'm trying to increment a variable / session value whenever 'submit' comes in the POST.

I can't seem to get around the logic of this.

Code looks like this:

Code: [Select]
$var = 0
if($_POST('submit'){
$_SESSION['var2'] = $var++;
}

What I want it to do is increment the value of the session index everytime a user clicks 'submit'.

But because i've reset $var to 0 everytime, it's always just going to stay at 1.

I just can't think of a way to achieve this, does anyone have any clue on how I can?

Hi there,

First of all, I want to present the diagram that I'm working on.
-----------
Diagram
-----------
step2_a.php --|
step2_b.php --|---> output.php
step2_c.php --|       (Process is included here)
step2_d.php --|


and here are the corresponding codes:

step2_x:
Code: [Select]
. . .
<form action="output.php" method="post" name="a">
req1: <input type="text" name="a_req_1">
req2: <input type="text" name="a_req_2">
. . .
<input type="submit">
</form>
------
. . .
<form action="output.php" method="post" name="b">
req1: <input type="text" name="b_req_1">
req2: <input type="text" name="b_req_2">
. . .
<input type="submit">
</form>
. . .
. . .

output.php:
Code: [Select]
<?php
$form_name = $_POST['a'];
if($form_name = "a") {
//variables for a goes here
        //code goes here
}
elseif($form_name = "b") {
//variables for b goes here
        //code goes here
}
elseif($form_name = "c") {
//cariables for c goes here
        //code goes here
}
elseif($form_name = "d") {
//variables for d goes here
        //code goes here
}
else {
//code goes here
}
?>
Now, here's the problem. output.php always sees the primary condition as true. Even the data came from step2_b, the code does not recognize it. I tried to use "==" instead of "=" but the code sees the arguments as false so it executed the code on "else".

How can I make the code distinguish the source of the data so that it would execute the right set of commands?

Thanks in advance.

I am creating a form that collects the details of users and then any errors cause for the error log to have errors noted and added to it.

Part of my coding is this:

Code: [Select]
else if (is_numeric($name)||is_int($name) && is_numeric($surname)||is_int($surname))
{
echo "It seems that you have entered numerical values for the First Name and Surname fields. This has been added to the error log.<br><br>";
error_log("<br><br><b><u>Presence Error</b></u><br>The user has entered numerical values for First Name and Surname fields!<br>First Name entered: " . $name . "<br>Surname entered: " . $surname . "<br>Age entered: " . $age . "<br>Number Of Complete Weeks Since Accident entered: " . $weeks . "<br>Time that form was submitted: " . $subtime . "<br><br>", 3, "C:/xampp/htdocs/errorlog.txt");
}
else if (is_numeric($name)||is_int($name))
{
echo "It seems that you have entered a numerical value for the First Name field. This has been added to the error log.<br><br>";
error_log("<br><br><b><u>Presence Error</b></u><br>The user has entered a numerical value for First Name fields!<br>First Name entered: " . $name . "<br>Surname entered: " . $surname . "<br>Age entered: " . $age . "<br>Number Of Complete Weeks Since Accident entered: " . $weeks . "<br>Time that form was submitted: " . $subtime . "<br><br>", 3, "C:/xampp/htdocs/errorlog.txt");
}
else if (is_numeric($surname)||is_int($surname))
{
echo "It seems that you have entered a numerical value for the Surname field. This has been added to the error log.<br><br>";
error_log("<br><br><b><u>Presence Error</b></u><br>The user has entered a numerical value for the Surname field!<br>First Name entered: " . $name . "<br>Surname entered: " . $surname . "<br>Age entered: " . $age . "<br>Number Of Complete Weeks Since Accident entered: " . $weeks . "<br>Time that form was submitted: " . $subtime . "<br><br>", 3, "C:/xampp/htdocs/errorlog.txt");
}

so that if a user enters in numerical values when letters need to be entered, then this gets added to the error log. However, even if I enter in a suitable surname (i.e. Jones), the first path (where both the first name and surname are detected as being numerical) runs when I want the path where only the first name contains just digits to be run. Any idea how to fix this?

Any help is appreciated!

Thanks!

I am trying to write an if statement that checks to make sure the information put in the text box is an imbedded file. Does anyone know how to do that?

Hello, I am learning PDO SQL statements, I have mananged to connect using PDO:


Code: [Select]
try
{
$this->link = $dbh = new PDO('mysql:host='.$this->dbhost.';dbname='.$this->dbname.'', $this->dbuser, $this->dbpass);
}
catch (PDOException $e)
{
echo 'Connection failed: ' . $e->getMessage();
}


I am not getting any error, so I guess that is a good start. I then tried the PDO SQL statement out. My old mySQL query is commented out in the


Code: [Select]
if (isset($_SESSION['id']) && isset($_SESSION['password']))
{
$_SESSION['id'] = ( isset( $_SESSION['id'] ) ) ? $_SESSION['id'] : FALSE;
$_SESSION['password'] = ( isset( $_SESSION['password'] ) ) ? $_SESSION['password'] : FALSE;


//$logged = mysql_query("SELECT * FROM `db_members` WHERE `id`='".$_SESSION['id']."' AND `password` = '".$_SESSION['password']."'");
//$logged = mysql_fetch_array( $logged );

// the new pdo statement
$ff = $dbh->prepare('SELECT * FROM db_members WHERE id = '.$_SESSION['id'].' AND password = '.$_SESSION['password'].'');

$ff->execute();
$logged = $ff->fetchAll();

echo $logged['username'];
}

I am trying to assign the session to logged variable. So all I am asking is go into db_members and check the id and password that is the same as session id and password and collect the rows data such as username.

My login script and everything works perfectly, even session id and password is valid when echo'd but I cannot assign it to the logged variable like my old sql statements.


Code: [Select]
$logged = mysql_query("SELECT * FROM `db_members` WHERE `id`='".$_SESSION['id']."' AND `password` = '".$_SESSION['password']."'");
$logged = mysql_fetch_array( $logged );

I used other PDO statements and it works perfectly but I just don't understand why this is not working.... can I please get some help if you have any solution to this?

Anything wrong with this because I got a parse error ONLY after adding to create this.

<?php
                            $visible = array('Yes', 'No');
                            foreach($visible as $visible):
                            $visible2 = array('yes', 'no');
                            foreach($visible2 as $visible2):
                        ?>      

The below is constantly loading the password page no matter what is enter in the password input on the form (on another page). I have checked the $login variable by echoing it and it is carrying the value from the field.


<?php
$off="yes";
$login=$_POST['login'];
if($off=="yes" && (!isset($_SESSION['login']) || $_SESSION['login']!="pass")){
    if($login=="" || $_SESSION['login']!="pass"){
    header('Location: ./index2.html');
    exit();
    }
    elseif(!isset($_SESSION['login'])){
    session_start();
    $_SESSION['login']=$login;
    header('Location: ./index.php');
    exit();
    }
}
elseif($off=="no" || $_SESSION['login']=="pass"){
content goes here.
}
?> 

Hey Guys,

I am creating an array and I have a need to put a if statement inside it. Is this even possible?

Here is where I am at so far, its just not working.


 function load_permissions($gid)
    {
     $data = array();
     $this->db->select('`groups`.`name` AS `permission_name`, `permissions`.``');
$query = $this->db->get('`groups`,`permissions`');
if ($query->num_rows() > 0){
foreach ($query->result_array() as $row){
  $data[] = array(
  "name" => $row['permission_name'],
  "read" => if($row['level'] >= 1)
   { 
    img("img/true.gif")
   } else { 
    img("img/false.gif")
   },
 
  );
  }
 }
 
 $query->free_result();
return $data;



Thanks,
Peter

Hey guys,

is there any way to have a LIKE condition on an IF statement?
Something like:
Code: [Select]
if $GET_['WTV'] LIKE %LOVE% {
$category=romance
Any clues?
Thanks in advance.

Hi Guys,
Newbie trying to understand PHP conditionals.
In the below Code: [Select]
[[*id]] is a global variable which equates to my current page id so it could have the value of 1 for example. I tested it using echo and the correct values pass to it in the cms I'm using. What I cant achieve is for the conditionals below to work correctly so perhaps you can see a syntax error or show me away of doing the same using an array or something perhaps? THANKS

Code: [Select]
<?php
$id='[[*id]]'

if ($id=="1" || $id=="2")
  echo "we are in 1 or 2";
elseif ($id=="3" || $id=="4")
  echo "we are in 3 or 4";
else
  echo "not in 1 to 4";
?>

How to write 2 "if" statements together?

if($userResult==$myResult) and ($userResult<0)
{

Hello, I'm currently working on just a quick little frontend for  VirtualBox and I'm just running into a little bit of a problem that I can't find my way around. Now this is my first project in php. I'm familiar with programming concepts (well except this one apparently  ) and by familiar were talking I like to tinker with small languages.. no formal training.
Anyway, here we go.

So heres the main page. Pretty simple, you type the argument that goes with the following command and check the box next to the command you'd like to execute.

Code: [Select]
<HTML>
<HEAD>
<TITLE>LCCP ver1</TITLE>
</HEAD>

<BODY>
<?php include "header.php"; ?>
<form method="post" action="lccp_ver1.php">
<p>cmd="createvm"<br>
        Enter the name of the Virtual Guest you'd like to create:
        <input type="text" name="id">
        <input type="checkbox" name="createvm">
        </p>
<p>cmd="showvrtinfo"<br>
Enter the name of the Virtual Machine you'd like to view:
<input type="text" name="id2">
<input type="checkbox" name="showvminfo">
</p>
<p>cmd="unregistervm"<br>
Enter the name of the Virtual Guest you'd like to delete:
<input type="text" name="id3">
<input type="checkbox" name="unregistervm">
</p>
<p>cmd="startvm"<br>
Enter the name of the Virtual Machine you'd like to start:
<input type="text" name="id4">
<input type="checkbox" name="startvm">
</p>
<p>cmd="controlvm"<br>
Enter the name of the Virtual Machine you'd like to control:
<input type="text" name="id5">
<input type="checkbox" name="controlvm">
</p>
<p>Then.. would you like to...</p>
<p>arg="pause" <input type="checkbox" name="controlvm_pause"></p>
<p>arg="resume" <input type="checkbox" name="controlvm_resume"></p>
<p>arg="reset" <input type="checkbox" name="controlvm_reset"></p>
<p>arg="poweroff" <input type="checkbox" name="controlvm_poweroff"></p>
<p>arg="savestate" <input type="checkbox" name="controlvm_savestate"></p>
<input type="submit" name="Submit" value="Submit">
</form>
</BODY>
</HTML>

And then here is the execution page
Code: [Select]
<HTML>
<HEAD>
<TITLE>LCCP command
<?php 
function ServerLoad()
{

$stats = exec('uptime');

preg_match('/averages?: ([0-9\.]+),[\s]+([0-9\.]+),[\s]+([0-9\.]+)/', $stats, $regs);

return ($regs[1].', '.$regs[2].', '.$regs[3]);
}
echo ServerLoad(); 

?>
</TITLE>
</HEAD>

<BODY>
<?php include "header.php"; ?>
<?php
function createvm($id) {
                        $output = shell_exec("VBoxManage createvm --name " . $id . " --register");
                        return $output;
                        }
function showvminfo($id) {
$output = shell_exec("VBoxManage showvminfo " . $id);
return $output;
}
function unregistervm($id) {
$output = shell_exec("VBoxManage unregistervm ". $id ." --delete");
return $output;
}
function startvm($id) {
$output = shell_exec("VBoxManage startvm ". $id ." --type headless");
return $output;
}
function controlvm($id,$arg) {
$output = shell_exec("VBoxManage controlvm ". $id ." ". $arg);
return $output;
}
function print_output($output) {
 echo'
 <pre>'. $output . '
         </pre>';
}
//******************exec main**********************

        if (isset($_POST['createvm'])) {
//              createvm($_POST['id2']);
                print_output(createvm($_POST['id']));
                }
if (isset($_POST['showvminfo'])) {
// showvminfo($_POST['id']);
print_output(showvminfo($_POST['id2']));
}
if (isset($_POST['unregistervm'])) {
// unregistervm($_POST['id3');
print_output(unregistervm($_POST['id3']));
}
if (isset($_POST['startvm'])) {
// startvm($_POST['id4']);
print_output(startvm($_POST['id4']));
}
if ((isset($_POST['controlvm'])) AND (isset($_POST['controlvm_pause'))) {
//controlvm($_POST['id5']," pause");
print_output(controlvm($_POST['id5']," pause"));
}
if ((isset($_POST['controlvm'])) AND (isset($_POST['controlvm_resume'))) {
//controlvm($_POST['id5']," resume");
print_output(controlvm($_POST['id5']," resume"));
}
if ((isset($_POST['controlvm'])) AND (isset($_POST['controlvm_reset'))) {
//controlvm($_POST['id5']," reset");
print_output(controlvm($_POST['id5']," reset"));
}
if ((isset($_POST['controlvm'])) AND (isset($_POST['controlvm_poweroff'))) {
//controlvm($_POST['id5']," poweroff");
print_output(controlvm($_POST['id5']," poweroff"));
}
if ((isset($_POST['controlvm'])) AND (isset($_POST['controlvm_savestate'))) {
//controlvm($_POST['id5']," savestate");
print_output(controlvm($_POST['id5']," savestate"));
}
//**********working on***************
//teleport?

?>
</BODY>
</HTML>

Now my question is with the if statements. Well, number one I guess is there a more efficient way of doing this that I'm overlooking? I looked into switches but I don't know how I'd pull that off with checkboxes without some complicated loop and somehow converting the checkboxes "yes" or "nos" into numbers or something. If statements just seemed like less of a headache but I may be finding otherwise haha.

Number two here is how do I get the "controlvm" command to work? When I comment out that last indented lines of if statements the program runs perfect (and thats with the controlvm function as well. so.. the problem isn't there). Basically whats the appropriate way to do this. I'm stuck and my limited program knowledge and Google searching is starting to run thin.

Thanks in advance for the help!

Hi,

What is a shorter way instead of having all these if statements?
Here it is:

Code: [Select]
      if($matchno==1)
         return 66;
      elseif($matchno==2)
         return 67;
      elseif($matchno==3)
         return 68;
      elseif($matchno==4)
         return 69;
      elseif($matchno==5)
         return 70;
      elseif($matchno==6)
         return 71;
      elseif($matchno==7)
         return 72;
      elseif($matchno==8)
         return 73;
      elseif($matchno==9)
         return 74;
      elseif($matchno==10)
         return 75;
      elseif($matchno==11)
         return 76;
      elseif($matchno==12)
         return 77;
      elseif($matchno==13)
         return 78;
      elseif($matchno==14)
         return 79;
      elseif($matchno==15)
         return 80;
      elseif($matchno==16)
         return 81;
      elseif($matchno==17)
         return 82;
      elseif($matchno==18)
         return 83;
      elseif($matchno==19)
         return 84;
      elseif($matchno==20)
         return 85;
      elseif($matchno==21)
         return 86;
      elseif($matchno==22)
         return 87;
      elseif($matchno==23)
         return 88;
      elseif($matchno==24)
         return 89;
      elseif($matchno==25)
         return 90;
      elseif($matchno==26)
         return 91;
      elseif($matchno==27)
         return 92;
      elseif($matchno==28)
         return 93;
      elseif($matchno==29)
         return 94;
      elseif($matchno==30)
         return 95;
      elseif($matchno==31)
         return 96;
      elseif($matchno==32)
         return 97;

someone please code shorter?
I will learn this way.

Thanks.

Hi There,

Im trying to figure out how to do this if/else statement. I need it to say, "if this is true, do this. if this is true, do this. If neither is true, do this.

So there are three different possible outcomes. I tried to put each new if inside of the previous else. but that doesn't seem to work.



$firstname = $_REQUEST['firstname'];
$lastname = $_REQUEST['lastname'];

if ($firstname == 'Joey' and $lastname == 'Hodara')
{
$output = 'Welcome to our site, ' . 
htmlspecialchars($firstname, ENT_QUOTES, 'UTF-8') . ', Oh Glorious Leader!';

}

else 
{  

if ($firstname == 'Matt' and $lastname == 'Fig') 
{
$output = 'Welcome to our site, ' . 
htmlspecialchars($firstname, ENT_QUOTES, 'UTF-8') . ', Portagee!';
}

else{
if ($firstname == 'Jon' and $lastname == 'Spense') 
{
$output = 'Welcome to our site, ' . 
htmlspecialchars($firstname, ENT_QUOTES, 'UTF-8') . ', bro!';
}

}

$output = 'Welcome to our site, ' . 
htmlspecialchars($firstname, ENT_QUOTES, 'UTF-8') . ' ' . htmlspecialchars($lastname, ENT_QUOTES, 'UTF-8') . '!';




?>