PHP - Variable Amount Of Variables

Hello everyone,

I can get Test 2 to successfully operate the if statement using a variable variable.

But when I try the same method using a session variable (Test 1) the if statement is not executed. Please could you tell me why the if statement in Test 1 is not being executed?

Code: [Select]

<?php
# TEST 1
$_SESSION[test_variable] = "abcd";
$session_variable_name = "_SESSION[test_variable]";
if ($$session_variable_name == "abcd")
{
echo "<br>line 373, abcd<br>";
}

# TEST 2
$test_variable = "efgh";
$test_variable_name = "test_variable";
if ($$test_variable_name == "efgh")
{
echo "<br>line 379, efgh<br>";
}

?>
Many thanks,

Stu

I am not sure how to do the below, would variable variables be the way -- those are a new and confusing thing for me :-/

i have an array:

$contactData = array('admin_firstName' => 'John', 'admin_lastName' => 'Smith', 'user_firstName' => 'Betty', user_lastName => 'Jones'); 

I have a function that little function that looks like this:

function compare($contactSet, $var, $value){

global $contactData;

    $key = $contactData . "['" . $contactSet . "_" . $var ."']";
    //above doesnt work, but you can see how the array key is constructed
    
if ($key == $value) { 
// So, if the array key varied it would look like:
// if ($contactData['admin_firstName'] == $value

echo "same";

} else {

echo "different";

}

}


and then I want to call it like this:
compare('admin', 'firstName', 'John'); //would echo "same";

Any help is greatly appreciated. I have often wanted to use variable variables, or whatever this would be called, but don't know to pull it off. I can add another example if this wasnt clear enough.

I need to use a variable variable.

I need:

$row['pos_1']
$row['pos_2']

to use $i for the numbers

I have this:

if ($row{[pos_.$i]} == 'ad')

which is throwing an error

Quote

Parse error: syntax error, unexpected '['



Any ideas?

Thanks!

I know how to use $$ and ${} to use variable variables, but how would I get the same functionality out of a variable that is storing an object name?

I have a function that is passed the name of an array of objects.  As you can guess, that name will change based on which portion of the program is calling
the function.  How would I use variable variables of objects in this instance?  Would it just be:

Code: [Select]
$this->${$objArrayName}->threadName = etc;
?

To make sure I'm not being misunderstood, I have 3 arrays of objects (replies, mainThreads, and stickies) and depending on which name I pass the function, I want it
to use $this->replies OR $this->mainThreads OR $this->stickies to apply properties of those objects to.

Thanks for any help.

-Adam

I've been trying for days to get this simple 1990's code to work. It won't work. Now, I don't even want to get it to work, because it's crappy ugly 1990's code...

Is there an elegant way to accomplish this? (I just want to be able to manually override the default catalog prices as needed.)

<?php
//default catalog prices:
$sku = "123456";
$price = "5.99";
if(isset($_POST[$sku])) { // if form submitted, and
	if( ${$_POST[$sku]} != $price) { //...and I manually changed price
	$price = ${$_POST[$sku]}; //...then change price to what I input
	}
}
echo '<form name="form1" method="post" action="Crappy1990sCodePage.php">';
echo '<input type="text" name="'.$sku.'" value="'.$price.'">';
echo '<input type="text" name="'.$sku.'" value="'.$price.'">';// (same sku may be listed twice)
echo '<input type="submit" class="no_class_its_the_90s_remember">'
echo '</form>';
?>

Thank you 😀

Edited July 25, 2020 by StevenOliver

Is it possible to split a variable into 2 variables?


///  I have this sentence
$item = "Below Telegraph Hill, Smallwork Canvas Edition";

/// And I want to be able to do this
$item = "Below Telegraph Hill" ;
$medium = "Smallwork Canvas Edition";


Is it possible to find the comma in a string, and remove the comma & everything before or after it? Any recommendations would be appreciated.

Question about variable variables and using session variables for them. O.K. So if I have:

$foo = 3;
$_SESSION['bar'] = "foo";

$$_SESSION['bar']  should equal the value of $foo, however I can't get it to work. Can someone tell me what I am doing wrong..... is it formatting???

Thanks,
Thomas

I'm not versed in PHP OOP and I have some code that I need to echo out onto a page. I don't know what the meaning of $ct->something is in this code. Is this an array of some type? How do I echo out the $ct->title onto another page? Use a function call? I just don't know what all of the $ct variables are and how to get to them. Any help is appreciated.
Code: [Select]
function current_theme_info() {
    $themes = get_themes();
    $current_theme = get_current_theme();
    if ( ! isset( $themes[$current_theme] ) ) {
        delete_option( 'current_theme' );
        $current_theme = get_current_theme();
    }
    $ct->name = $current_theme;
    $ct->title = $themes[$current_theme]['Title'];
    $ct->version = $themes[$current_theme]['Version'];
    $ct->parent_theme = $themes[$current_theme]['Parent Theme'];
    $ct->template_dir = $themes[$current_theme]['Template Dir'];
    $ct->stylesheet_dir = $themes[$current_theme]['Stylesheet Dir'];
    $ct->template = $themes[$current_theme]['Template'];
    $ct->stylesheet = $themes[$current_theme]['Stylesheet'];
    $ct->screenshot = $themes[$current_theme]['Screenshot'];
    $ct->description = $themes[$current_theme]['Description'];
    $ct->author = $themes[$current_theme]['Author'];
    $ct->tags = $themes[$current_theme]['Tags'];
    $ct->theme_root = $themes[$current_theme]['Theme Root'];
    $ct->theme_root_uri = $themes[$current_theme]['Theme Root URI'];
    return $ct;
}

This topic has been moved to Other Libraries and Frameworks.

http://www.phpfreaks.com/forums/index.php?topic=357370.0

Say I have two variables like below. I basically want to select one of them, but through random choice. How do I do that?

$orange = 'Orange';
$apple = 'Apple';

 

i have Created a Session  with this code $_SESSION['USER_NAME'] = trim($_POST['username'])


How can i access the $_SESSION['USER_NAME'] in other Pages ;

and will this code for $var = $_SESSION[USER_NAME] 

can i get the SESSIOn value in " $var"  variable ??

Hello,

If I have this string:

$tags="baseball glove face" (this can vary from 1 to 15 different words)

how would i loop through and divide these into different

$tag1=baseball
$tag2=glove
$tag3=face
.. and so on (if more words)

Thanks for help

I am trying to achieve something that appears simple but  I spent few hours in vain



Quote

$tag1 = '<a href="layout_m.php?k='.$k.'&name='.$name.'&type='.$type.'">';

if ($k=="1") {$history = ucfirst($name) . ' - ' . $tag1 . $k .'</a>'  ; }
else {$history = $history . ' - '. $tag1 . $k . '</a>' ;}

print $history;



This is part of a page which is involved in passing data by forms or/and URL (eg layout.php?k=1) and the display of the page depends on k.


At k=1,(first page)  things are ok [Joe -  <a href="layout_m.php?k=1&name=Joe&type=genus"> 1 </a>]

but on passing to the next page, the output is not as desired

part of the variable is escaped out on the browser and breaks the variable content


View source gives this:
Joe -  <a href= -  <a href="layout_m.php?k=3&name=Joe&type=genus"> 1 </a>

while I want:

Joe -  <a href="layout_m.php?k=1&name=Joe&type=genus"> 1 </a> -  <a href="layout_m.php?k=3&name=Joe&type=genus"\> 3 </a>

What I achieve to do is a simple history based on an accumulation of k

EG Joe - 1 - 3 - 5 - 6 - 8  Where each number (k) is linked and when pressed each go to the corresponding keypage.

I have this simple while loop which retrieves data from a mysql query and displays several links on my homepage.

I would like to avoid using the php get function and add query strings to my urls

I am thinking of using session variables but I need help and I'm pretty sure this can't be done.

When a visitor clicks a link from the several ones displayed by the while loop, that particular variable would be set in a session.

In my code, the session will always send the last var

Can this be done?

    Code: [Select]
<? session_start(); // Start Session Variables

    $result = mysql_query("my query");

    while($slice = mysql_fetch_assoc($result)){
        $url = $slice['url'];
        $name  = $slice['name']; ?>

        <a href="<? echo $url; ?>"><? echo $name; ?></a>

    <? }

    $_SESSION['name'] = $name; // Store session data  ?>

First page adds a new job number, then the order page loaded with the job number id as a get id. Basically there is a while loop in the order page which shows products/services client can order and he chooses what he requires 'one or eight services' (8 in total) and some other variables like date of order and client name etc. Here is the order item code

The first sql statement executes fine, but in the second sql query nothing happens


$sql="insert into job_order(order_num,order_date,order_customer_id, order_remarks) values(".$_GET['id'].",NOW(),".$_POST['companyBox'].",'".$_POST['remarkBox']."');"; $res=mysql_query($sql);  $id=mysql_insert_id();   foreach($_POST as $key => $value) {          if(!empty($value)) {           $key.' => '.trim(strip_tags($value));            $order="INSERT INTO orderprod (order_num,prod_id,order_amount,teeth_amount) VALUES ('$_GET[id]','$value','$value','$value');"; $orderres=mysql_query($order) or die(mysql_error()); } }?>$sql="insert into job_order(order_num,order_date,order_customer_id,
order_remarks)
values(".$_GET['id'].",NOW(),".$_POST['companyBox'].",'".$_POST['remarkBox']."');";
$res=mysql_query($sql);

$id=mysql_insert_id();


foreach($_POST as $key => $value) {


        if(!empty($value)) { 
 
         $key.' => '.trim(strip_tags($value));  
     
         $order="INSERT INTO orderprod (order_num,prod_id,order_amount,teeth_amount) VALUES
('$_GET[id]','$value','$value','$value');";
$orderres=mysql_query($order) or die(mysql_error());
}
}
?>



=============

This is the formI have removed parts which are irrelevant. Please note that dateBox and companyBox are not required to be looping as they are only for first table,



echo "<form action=".$config_basedir."./vieworder.php?id=".$_GET['id']."  name=form1 method=post>";?><table><tr><td><h4>JOB ORDER</H4></TD><TD></TD></TR><TR><TD>ORDER NUMBER</TD><TD><?PHP ECHO $_GET['id'] ?></td></tr><tr><td>ORDER DATE</td><td><input type=text name=dateBox></td></tr> <tr><td>COMPANY NAME</td><td><?PHP$sql="select * from customers";$res=mysql_query($sql);echo "<select name=companyBox><option value=''>Please select</option>";WHILE($fetch=mysql_fetch_assoc($res)){ echo "<option value='".$fetch['id']."'>".$fetch['cust_name']."</option>";} echo "</select>"; echo "</td></tr>"; ?>   </table> <table><tr><th>ITEM</th><th>QUANTITY</th><th>N0. of Teeths</th></tr><tr><?PHP$sql="select * from products";$res=mysql_query($sql); WHILE($fetch=mysql_fetch_assoc($res)){ echo "<td><input type=text name=desBox value='".$fetch['prod_id']."'>".$fetch['prod_name']."</td><td><input type=text name=quantBox></td><td><input type=text name=teethBox></td>";echo "</tr>";}echo "</table>";?>echo "<form action=".$config_basedir."./vieworder.php?id=".$_GET['id']."  name=form1 method=post>";
?>
<table>
<tr>
<td><h4>JOB ORDER</H4></TD><TD></TD>
</TR>
<TR>
<TD>ORDER NUMBER</TD><TD><?PHP ECHO $_GET['id'] ?></td>
</tr>
<tr>
<td>ORDER DATE</td><td><input type=text name=dateBox></td>
</tr>

<tr>
<td>COMPANY NAME</td><td>
<?PHP
$sql="select * from customers";
$res=mysql_query($sql);
echo "<select name=companyBox><option value=''>Please select</option>";
WHILE($fetch=mysql_fetch_assoc($res)){

echo "<option value='".$fetch['id']."'>".$fetch['cust_name']."</option>";}
echo "</select>";
echo "</td></tr>";
?>



</table>

<table>
<tr>
<th>ITEM</th><th>QUANTITY</th><th>N0. of Teeths</th>
</tr>
<tr>
<?PHP
$sql="select * from products";
$res=mysql_query($sql);

WHILE($fetch=mysql_fetch_assoc($res)){

echo "<td><input type=text name=desBox value='".$fetch['prod_id']."'>".$fetch['prod_name']."</td>
<td><input type=text name=quantBox></td>
<td><input type=text name=teethBox></td>";
echo "</tr>";}
echo "</table>";
?>



HERE IS THE IMAGE showing the populated services.
http://dubads.com/images/order.jpg