PHP - Using Arrays Or Variables Inside _post

Hello Masters

I need to iterate through multiple $_POST[''] variables that have been submitted by a form, from the user, checking to see if they have been set or left unfilled.

Having a tough time finding a tutorial online...

I am a php noob... So I though that I would assign short variable names to the $_POST variables and put them into and array(with names for keys) , then use a for loop and isset() to echo any variable's key in which its value has not been set to the user.

I have found out that I can not use variables as array values....

What is the best way to do this?

Thanks to you in advance sirs.

foreach ($_POST as $key => $value){

// Handle escape characters, which depends on setting of magic quotes

   if($get_magic_quotes_exists == true && get_magic_quotes_gpc() == 1){
           
      $value = urlencode(stripslashes($value));    
         
   }
         
   else {
                   
      $value = urlencode($value);    
      
   }
                      
$req .= "&$key=$value";
                     
}

$reg is not returning anything.

Hello everyone,

Can someone show me a way how to pass $_post variable from a form to a function?

So, input username and input password to a function login($username, $password).

I have a php search page that takes form data to create its queries, then reload the original search page. The form is long, so there are numerous $_POST's to convert to variables for use in the query. I've looked at "extract" and a few other code snippets. But it's a form and I don't want any security issues. I'm hoping there's a "foreach" solution, but I'm a beginner. What's a proper way to to simplify this:

$s1 = $_POST["s1"];
$s2 = $_POST["s2"];
$s3 = $_POST["s3"];
$s4 = $_POST["s4"];
$s5 = $_POST["s5"];
$s6 = $_POST["s6"];
$s7 = $_POST["s7"];
$s8 = $_POST["s8"];
$s9 = $_POST["s9"];
$s10 = $_POST["s10"];
$s11 = $_POST["s11"];
$s12 = $_POST["s12"];

Hi,

Which one is better from performance view (CPU usage and etc)? using too many Variables or a single Associative Array or generally an Array?

This one:

$ld_linkdump_title         = get_option('ld_linkdump_title');
$ld_linkdump_widget_title  = get_option('ld_linkdump_widget_title');
$nw_option                 = get_option('ld_open_nw');
$ld_open_branding          = get_option('ld_open_branding');
$ld_stylesheet_option      = get_option('ld_stylesheet');
$ld_number_of_links        = get_option('ld_number_of_links');
$ld_number_of_links_widget = get_option('ld_number_of_links_widget');
$ld_number_of_rss_links    = get_option('ld_number_of_rss_links');
$ld_number_of_links_be     = get_option('ld_number_of_links_be');
$ld_repeated_link          = get_option('ld_repeated_link');
$ld_linkdump_fd            = get_option('ld_linkdump_fd');
$ld_linkdump_rss_desc      = get_option('ld_linkdump_rss_desc');
$ld_branding_bg            = get_option('ld_branding_bg');
$ld_archive_days           = get_option('ld_archive_days');
$ld_archive_pid            = get_option('ld_archive_pid');
$ld_show_counter           = get_option('ld_show_counter');
$ld_show_description       = get_option('ld_show_description');
$ld_show_description_w     = get_option('ld_show_description_w');
$ld_send_notification      = get_option('ld_send_notification');
$ld_auto_approve           = get_option('ld_auto_approve');
$ld_short_url              = get_option('ld_short_url');


or this:


$options['ld_linkdump_title'] = get_option('ld_linkdump_title');
$options['ld_linkdump_widget_title']  = get_option('ld_linkdump_widget_title');
$options['nw_option']                 = get_option('ld_open_nw');
 .
 .
 .

Howdy,

I used to have a whole bunch of terms (PreK, Elem, MS, HS etc...) together into a single variable called "levels".  They terms were separated by commas.  The following code created a pulldown menu that allowed me to "filter" the page for any one particular term.  Worked terrific...

Code: [Select]
<?
//remove any old level from query
$tmp = array();
foreach ($_GET as $fld => $val)
    if ($fld != 'levels')
         $tmp[] = $fld . '=' . $val;
$page_name = $_SERVER['SCRIPT_NAME'] . '?' . implode('&',$tmp);
?>
<?php
echo '
<form name="form4" action="" method="get" class="tight">
<select name="levels" >';
?>

<option <?php if(empty($_GET['levels'])){ echo "selected=\"selected\""; } ?> value="<?php echo "$page_name" ?>">DISPLAY ALL LEVELS</option>
<?php
if ($_GET[levels] == 'PreK')
{ echo '<option selected value="'; ?> <?php echo "$page_name" ?>
<?php echo '&amp;start=0&amp;levels=PreK">PreK</option>'; } 
else { echo '<option value="'; ?> <?php echo "$page_name" ?>
<?php echo '&amp;levels=PreK">PreK</option>'; }

if ($_GET[levels] == 'Elem')
{ echo '<option selected value="'; ?> <?php echo "$page_name" ?>
<?php echo '&amp;start=0&amp;levels=Elem">Elem</option>'; } 
else { echo '<option value="'; ?> <?php echo "$page_name" ?>
<?php echo '&amp;levels=Elem">Elem</option>'; }

if ($_GET[levels] == 'MS')
{ echo '<option selected value="'; ?> <?php echo "$page_name" ?>
<?php echo '&amp;start=0&amp;levels=MS">MS</option>'; } 
else { echo '<option value="'; ?> <?php echo "$page_name" ?>
<?php echo '&amp;levels=MS">MS</option>'; }

if ($_GET[levels] == 'HS')
{ echo '<option selected value="'; ?> <?php echo "$page_name" ?>
<?php echo '&amp;start=0&amp;levels=HS">HS</option>'; } 
else { echo '<option value="'; ?> <?php echo "$page_name" ?>
<?php echo '&amp;levels=HS">HS</option>'; }

if ($_GET[levels] == 'College')
{ echo '<option selected value="'; ?> <?php echo "$page_name" ?>
<?php echo '&amp;start=0&amp;levels=College">College</option>'; } 
else { echo '<option value="'; ?> <?php echo "$page_name" ?>
<?php echo '&amp;levels=College">College</option>'; }

if ($_GET[levels] == 'Prvt')
{ echo '<option selected value="'; ?> <?php echo "$page_name" ?>
<?php echo '&amp;start=0&amp;levels=Prvt">Prvt</option>'; } 
else { echo '<option value="'; ?> <?php echo "$page_name" ?>
<?php echo '&amp;levels=Prvt">Prvt</option>'; }

if ($_GET[levels] == 'Admin')
{ echo '<option selected value="'; ?> <?php echo "$page_name" ?>
<?php echo '&amp;start=0&amp;levels=Admin">Admin</option>'; } 
else { echo '<option value="'; ?> <?php echo "$page_name" ?>
<?php echo '&amp;levels=Admin">Admin</option>'; }

echo '
</select>
</form>';
?>
Now, I'm keeping all those terms as separate variables, and combining them in an array.  (I think that's right.)

Code: [Select]
$PreK = $PreK;
$Elem = $Elem;
$MS = $MS;
$HS = $HS;
$College = $College;
$Admin = $Admin;
$Prvt = $Prvt;

$levels = array($PreK, $Elem, $MS, $HS, $College, $Admin, $Prvt);
foreach ($levels as $key => $v )    if (!$v)        unset ($levels[$key]);
$levels = implode(', ', $levels);
echo $levels;
My question, how do I modify my pulldown form (above) to check the WHOLE array for these values?

I'm so lost...

Thanks.

~Wayne

Hello.   Server returns this json

{"status":1,"job_status":"READY","iterations":["Contig2","Contig75"],"accessions":["NP_001061702","NP_001068174"]}

And i would like to print out in a textarea (using the above jQuery command)

$('#info').val()

something like this:   Contig2 : NP_001061702 Contig75 : NP_001068174   Any idea on how to achieve this?   Thanks!

Hi
I have a page that the user selects a category and I have the page sending a variable to a page.
However, I want the user to be able to select multiple options and therefore need the page doing the query to build an array and change the search results accordingly!
Please can someonehelp me with what I have as I am jsut NOT getting my head around this!

Here is the 'form' info

Code: [Select]
<input name="jqdemo" value="6" type="checkbox" id="party"/>
<label for="party"></label>
<a class="checkbox-select" href="# id="6" onclick="showUser(this.id)""><img src="Assets/images/blank.png" alt="" width="120" height="180" /></a>
<a class="checkbox-deselect" href="#" id="0" onclick="showUser(this.id)"><img src="Assets/images/blank.png" alt="" width="120" height="180" /></a>
Then this is the page that is doing the query
Code: [Select]
<?php
$q=$_GET["q"];

$con = mysql_connect('localhost', 'root', '');
if (!$con)
  {
  die('Could not connect: ' . mysql_error());
  }

mysql_select_db("db_pyf", $con);

//$sql="SELECT * FROM tbl_product WHERE cat_id IN '".$q."'";
$sql="SELECT * FROM tbl_product WHERE cat_id IN (3,1,2)";

$result = mysql_query($sql);

echo "<table border='1'>
<tr>
<th>Firstname</th>
<th>Lastname</th>
<th>Age</th>
<th>Hometown</th>
<th>Job</th>
</tr>";

while($row = mysql_fetch_array($result))
  {
  echo "<tr>";
  echo "<td>" . $row['prod_name'] . "</td>";
  echo "<td>" . $row['prod_desc1'] . "</td>";
  echo "<td>" . $row['member_id'] . "</td>";
  echo "<td>" . $row['cat_id'] . "</td>";
  echo "<td>" . $row['cat_id'] . "</td>";
  echo "</tr>";
  }
echo "</table>";

mysql_close($con);
?>

But, as I have said, I want the user to be able to select multiple options and want the search to adjust accordingly!

Hello,

I am a PHP biginner. I would be grateful if you could help with the issue below.

I have created three input dynamic variables in a separate php file using a For lopp.

<?php
                    
                    For ($i=1; $i<=31; $i++) {
                    
                    echo '<div class="row">';
                    echo '<div class="col span-1-of-4">';
                    
                    //Dates en français
                                    
                                    $jour = $jour + 1;
                                    $dateTest = $annee . "-" . $mois . "-" . $jour;
                                    $date = date_create("$annee-$mois-$jour");
                        
                    echo '<input name="workday[]" id="workday[]" class="donnee-pointage1" value="';
                    echo date_format($date, 'd/m/Y');
                    echo '">';
                        echo " ";
                    echo '</div>';
                        echo '<div class="col span-1-of-4">';
                            echo '<input type="time" name="startTime[]" id="startTime[]">';
                        echo '</div>';
                        echo '<div class="col span-1-of-4">';
                            echo '<input type="time" name="endTime[]" id="endTime[]">';
                        echo '</div>';                    
                    echo '</div>';
                        
                    }
                    
       ?>

 

The form works well.

In another PHP I would like to use the three arrays workday[], startTime[] and endTime to calculate the duration between startTime and endTime for each working day. I can access the different arrays using Foreach like below but I don't see how to combine thos arrays in order to be able to calculate the duration between two data that are in diffrent arrays. Is it possible to make calculations using variables stored in different arrays ? If so could you help me understand how ?

 

<?php

                if (isset($_POST['workday'])) {
                    foreach ($_POST['workday'] as $i => $workday) {

                   echo $workday . "<br>;

                    }
                }

                if (isset($_POST['startTime'])) {
                    foreach ($_POST['startTime'] as $i => $startTime) {

                    echo $startTime. "<br>;
                    }
                }

                if (isset($_POST['endTime'])) {
                    foreach ($_POST['endTime'] as $i => $endTime) {

                     echo $endTime. "<br>;
                    }
                }

               
                }
            
        ?>

Hello,

I've created a function whereby I want to return the school_id associated with a particular user.  Each user will be associated with exactly one school.  My query below works, but the thing that it returns is an array; I need to make use of it as a variable (say $instructor_school_id).  Any idea how to make the conversion from a single element array into a non-array variable?

Thank you....

function getInstructorSchool($read, $user_id) {

$sql = "SELECT school_id

FROM users

WHERE user_id = $user_id";

return $read->fetchRow($sql);
}
   

As the title says, how can i check if multiple arrays exist inside an array or not?

Any help is greatly appreciated!

 

Okay I have a function that stores data into an Array.  The function takes about 7 seconds to run and through a number of different loops it creates one final array with about 15,000 keys.  I want to recall this data a number of times in different functions, however how can I have this data easily accessible without running the function each time.

EX:
Code: [Select]
function theFunction()
{
   for($x=0;$x,=15000;$x++)
   {
   //Run the loop and store data.
   $string[$x] = //output from other loops and calculations
   }
   return $string
}

//Then later on if I want to recall the data the only way I know how is to do the follow:
$newstring = theFunction()

The only problem I have with this is that it has to re-run the function every time in order to get to the data it spits out.  How can I store this data into another array outside of the function without having to re-run it?

I hope this makes sense.

Thanks.

So say I have a file with the contents..

Code: [Select]
; this is a comment
var2 : variable
; another comment
var3 : file.txt


how would I be able to do



<?php

echo $var2; 

?>



That would echo "variable"

and

<?php

$file = file($var3);

?>



So its reading the file to get the variable from the text file and if the line starts with ";" its disregarded..


Thanks

Hello. Trying to learn MVC better by creating my own little framework to understand how it works.

Things were going OK til now.

I have a base class:

<?php

/**
 * Base class most classes will extend from.
 * Simply put, this class just has methods that
 * most, if not all, classes will need.
 */

class Application {

public function includer($path) {

if (is_readable($path) == true) {
include_once($path);
} else {
die("404 not found =[");
}
}




}
?>


So the above method 'includer' just sees if a file exists/is readable and if so, include it.

Here's where I am using said method.


class Index extends Application {

function __construct($method = 'view') {
// load the index model
include(ROOT . '/app/models/model.index.php');

// Invoke requested method.
$this->$method();
}

public function view() {

$name = 'Smith';
$this->includer(ROOT . '/app/views/view.index.php'); # Problem here, i think
}


}


view.index.php just contains
<?php echo $name; ?>


All that is called from the index page, with this line of code
Application::includer($controller_path);


Now, in line
$this->includer(ROOT . '/app/views/view.index.php'); # Problem here, i think

If i get rid of $this->includer, the script will work and say 'Smith'.

If i have $this->includer(...) or parent::includer(...), it doesn't work.

why?

I have the array defined and print_r (outside the function is show what I need...)
However, I need to somewhay pass those three arguments - name, price, shipping (keys & values) into the "all_products" function and assign (inside the function) each element to a variable {name, price, shipping}.

Code: [Select]
function all_products($key,$value) {

# This is where I'm lost - I know the values are passed to the function but how to I assign them to below variable?
echo "$name";
echo "$price";
echo "$shipping";


// Products array defined to send values into "all_products" function & loop to display item name & individual pricing (using WHILE LOOP)
$products = array('Product1' =>
                                    array   (   'name'  =>  'item one',
                                                'price' => '30.00',
                            'shipping' => '0.00'),
             'Product2' =>                       
                        array (   'item two',
                                                'price' => '19.50',
                            'shipping' => '0.10'),
             'Product3' =>
                        array (   'item three',
                                                'price' => '21.99',
                            'shipping' => '0.10')
                                                );


while (list($keys, $values) = each($products)) {
             while (list($k, $v) = each($values))
   echo "Checking Looped Data Outside Function: <strong>$k: </strong> $v<br/>";

#   echo "<pre>";
#   print_r($value);
#   echo "</pre>";

# Trying to send array elements into "all_products" function & echo (name, price, shipping) keys and values inside that function
all_products($k,$v);

}