So this is the second assignment in a beginner PHP class. One part of the assignment requires you to allow the user to enter in multiple walls in an HTML form (the program is a calculator to figure out the cost of paint, labor, etc.), however you don't know how many walls the person is going to enter, so the form needs to be dynamic.
I don't think we're allowed to use javascript.
I've tried to use the SESSION variable to store the values into an array ( how to store variable values over multiple page loads ) and use foreach functions to loop and save the data ( How to store values from foreach loop into an array? ).
Nothing seems to be working. In this assignment we're not supposed to use SQL.
Is there another way to store an array? I'd also be happy with a way to echo the data and leave it there until the cache is cleared.
Here's the code I have right now (sorry it's a bit of a mess):
print_r($_POST);
echo "<br />";
print_r($_REQUEST['wallW']);
echo "<br />";
echo "<br />";
$wallW = $_REQUEST['wallW'];
echo "The width is $wallW.";
echo "<br />";
print_r($wallW);
$_SESSION['wallW'] = $wallW;
$wallW = $_SESSION['wallW'];
?>
<form name="getOrderInfo" action="" onsubmit="" method="post">
<table id="wallInfo">
<th>
Order Information
<th>
<tr>
<td>
Wall Width:
</td>
<td>
<input type="text" name="wallW[]" id="wallW" size="20" value="">
</td>
<tr>
<tr>
<td>
Wall Length:
</td>
<td>
<input type="text" name="wallL[]" id="wallL" size="20" value="">
</td>
<tr>
</table>
<input type="submit" value="Add Wall">
</form>
Any help would be great.
Thanks,
Chelsea
Do you use session_start(); on the top of the file, then $_SESSION['array'] = $array;.
store
$data = $_POST;
$_SESSION['data'] = $data;
and check on next page
if(isset($_SESSION['data'))
{
$data = $_SESSION['data'];
print_r($data);
}
Related
This is the code for the admin panel of a certain site. Appointments asked by customers will be shown in this page. The admin will be able to change the appointments based on availability.
<?php
while($row = mysqli_fetch_assoc($result)){
?>
<form action="adminEdit.php" method="POST">
<tr>
<td><input type="text" id="name" value="<?php echo $row['Name'];?>"></input></td>
<td><input type="text" id="address" value="<?php echo $row['Address'];?>"></input></td>
<td><input type="text" id="phone" value="<?php echo $row['Phone'];?>"></input></td>
<td><input type="text" id="license" value="<?php echo $row['Car_License_No'];?>"></input></td>
<td><input type="text" id="engine" value="<?php echo $row['Car_Engine_No'];?>"></input></td>
<td><input type="text" id="date" value="<?php echo $row['Date'];?>"></input></td>
<td><input type="text" id="mechanic" value="<?php echo $row['Mechanic'];?>"></input></td>
<td><input type="submit" name="submit" value="Change"/></td>
</tr>
</form>
<?php
}
?>
Here, each row of data has a corresponding button which will be used for changing or modifying the records of that particular row. Once the admin changes a specific appointment it should get updated in database.
My problem is, all the rows are getting generated by a while loop. Now how can I access a specific row when the change button of that specific row has been clicked ? As the rows are getting generated by a loop, I wont be able to access them bynameoridbecause all of them will have the samenameandid`.
Searched for relevant questions but none of them matched with my scenario. It will be of great help getting an answer. Thanks in advance.
Personally I'd be inclined to take the output from being in the loop for better control over the data and resolving the issue. You're also creating a new form on each loop.
Just loop the DB and create a new variable, then use that variable to output the data in the form.
Example code to show the basic idea, not tested or stating it's complete etc:
while ($row = mysqli_fetch_assoc($result)) {
$someNewVar[$row['id']] = $row;
// The 'id' index would be from DB which identifies individual rows
}
?>
<form action="adminEdit.php" method="POST">
<?php
foreach ($someNewVar as $index => $value) {
?>
<tr>
<td>
<input
type="text"
id="<?php echo $index;?>"
value="<?php echo $value['Name'];?>">
</input>
</td>
<td>
<input
type="submit"
name="submit"
value="Change"/>
</td>
</tr>
<?php
}
?>
</form>
Then you'd need to have the row ID passed from clicking the submit button.
On a side note, this whole approach could be tidied up, and data should be obtained in one file separate to where you output it.
Then in the file which obtains the data you can set the array to something which is also identified in the output file to manage if no data was obtained.
ie
getData.php
while ($row = mysqli_fetch_assoc($result)) {
$dataFromDb[$row['id']] = $row;
}
$someNewVar = !empty($dataFromDb) ? $dataFromDb : false;
showData.php
if ($someNewVar) {
// do the loop and form
} else {
echo 'sorry no data found';
}
I'm a beginner in php and I have a problem regarding checkbox.
First thing is that, in the form I don't know if name=medID[] is specifically used as an array. or a normal string like medID will work? and how exactly is it useful to use an array.?
When I'm updating the value in query both $quan and $medID values are not passing in the query.
In browser it shows "Alloted Succesfully" but the database value of quantity is not changing. when i replace $quan and $imp value to some integers then it works fine.
<tbody>
<tr>
<form method="post" action="ytube.php?array=hospitalstock&hospitalID=<?php echo $opened['hospitalID']; ?>&id=allot" role="form">
<div class="form-group">
<td class="vcenter"><input type="checkbox" name="medID[]" id="check" value="<?php echo $list['medID']; ?>" /></td>
</div>
<td><?php echo $list['item'] ?> </td>
<td><?php echo $list['price'] ?> </td>
<td><?php echo $list['quantity'] ?> </td>
<td><?php echo $list['subtotal'] ?> </td>
<div class="form-group">
<td><input type="text" name="quantity" id="quantity" class="form-control" /> </td>
</div>
</tr>
<?php }} ?>
<div class="form-group">
<input class="submit" type="submit" value="Allot Medicine" name="submit" class="form-control" />
</div>
</form>
</tbody>
</table>
<?php
$id=$_POST['medID'];
$quan=$_POST['quantity'];
if(isset($_POST['submit'])){
if(empty($id) || $id==0){
echo 'Select medicines to allot ';
}else{
echo $quan;
$imp= implode(", ",$id);
$q="UPDATE hospitalstock SET quantity= (quantity - '.$quan.') WHERE medID IN('.$imp.')" ;
$r=mysqli_query($conn, $q);
if(isset($r)){
echo 'Alloted Succesfully';
}
}
}
?>
Yes a normal string like madID will work just aswell.
name="medID" => $_post['medID']
name="medID[]" => $_post['medID'][0] de last [0] will get you the first element of the array
An array could be really helpful when it's a dynamically created form. A form where the number of inputs is not set, for example a contact form where you can click on a plus icon to add another text input for multiple phone numbers. Bacause its unknown how many phone numbers someone have its easier to just retrieve one variable as an array and iterate over this array after.
Don't you get an error like:
Notice: Undefined index: medID in ....
In your code you have name="medID[]" and $_post['medID']. So your form is sending an array but you retrive a normal variable. Just delete [] from name="medID[]"
Because of that if(empty($id) $id will always be empty so you don't even reach your query.
Few things to say; first I don't understand the concept of using a query string for action when you are using post as a method for submitting the values. Secondly if you are trying to consume the values from the query string as well; then I can't find the $_GET[] in your entire program. Third is a suggestion to use $_REQUEST[] when you are not sure about the get or post collections. Also, the name="medID[]" won't create any array for PHP. Is the ytube.php the same page where you have created this form?
Dunno if the title makes sense, but I have a variable which would to put it in basic terms would be called like this:
$_POST['something'+$variable2]
I have a form which is for editing selected records, this form contains entries for all previously selected records:
<form name="input" action="editcar.php" method="POST">
<input type="submit" value="Yes">
while($row = mysqli_fetch_assoc($result))
{
echo'
</div>
<table style="color:white">
<tr>
<td style="text-align:right">Manufacture:</td><td><input type="text" name="manufacture'.$row['carIndex'].'" value="'.$row['make'].'"></td>
<td style="text-align:right">Model: </td><td><input type="text" name="model'.$row['carIndex'].'" value="'.$row['model'].'"></td>
</tr>
<tr>
<td style="text-align:right">Colour: </td><td><input type="text" name="colour'.$row['carIndex'].'" value="'.$row['colour'].'"></td>
<td style="text-align:right">Reg: </td><td><input type="text" name="reg'.$row['carIndex'].'" value="'.$row['Reg'].'"></td>
</tr>
<tr>
<td style="text-align:right">Price: </td><td><input type="text" name="price'.$row['carIndex'].'" value="'.$row['price'].'"></td>
<td style="text-align:right">Mileage: </td><td><input type="text" name="mileage'.$row['carIndex'].'" value="'.$row['miles'].'"></td>
</tr>
<tr>
<td style="text-align:right">Max MPH: </td><td><input type="text" name="mph'.$row['carIndex'].'" value="'.$row['mph'].'"></td>
<td style="text-align:right">MPG: </td><td><input type="text" name="mpg'.$row['carIndex'].'" value="'.$row['mpg'].'"></td>
</tr>
</table>
</form>
</div> ';
}
?>
</form>
The form is looped for each record previously chosen, to enable mass editing. The isue arouses when I realised I'd have multiple inputs with the same name, so I did:
<input type="text" name="model'.$row['carIndex'].'" value="'.$row['model'].'">
Placing the primary key of the record it was currently tired to on the end of it's name. Which seemed like a logical way to go about things.
However now I need to call these variables to place in the mysql query and I dunno how to do that, or even if I can.
I have the selected records saved in an array so I have:
foreach ($postid as $carID)
{
$query = "stuff";
mysqli_query($db, $query);
}
Each loop has $carID containing the variables that was put on the end of the form input names.
So something like:
$_POST['something'+$variable2]
is all I can think of but doesn't work.
Any method that works for my overall code is welcome not just a solution to the issue I've made.
Actually your way should work. Just replace the + with . in $_POST['something'+$variable2].
My tip is: use an array as name in your html instead:
<input type="text" name="model[]" value="'.$row['model'].'">
On php-Side you can loop through all $_POST['model'] since its an array now.
You can add the index for every entry in your html, too:
<input type="text" name="model['.$row['carIndex'].']" value="'.$row['model'].'">
PHP uses a dot for concatenation, not + like Java and Javascript:
$_POST['something' . $variable2]
Try something like this:
<form ...>
<?php
while($row = mysqli_fetch_assoc(...):
$index = $row['carIndex'];
?>
<input type="text" name="carmodel[<?php echo $index?>][model]" value="<?php echo $row['model'] ?>">
<?php endforeach; ?>
</form>
This way you will have the data stored in $_POST['carmodel'] as an array indexed by carIndex value as the structure of data in $_POST is defined by names of inputs, here you will have names likee carmodel[1][model] for example so then in post it will be in $_POST['carmodel'][1][model]
you can read here as well
How would I create this array structure in an HTML form?
So i've created an administration page that creates X-number of forms based on how many users we have in our database, each of which have a submit button next to them to submit changes to the dates we have in our DBs. My problem is that when I want to get the value of what gets posted I can't extract exactly what I need from what gets posted. It gets saved into an array called and when I print_r the array I get exactly what I want, which is:
[1] => "whatever date they typed in"
(obviously the 1 changes depending on which item they changed the date of)
I need be able to query my datebase by:
UPDATE users SET subdate="whatever they typed in" WHERE id="the array reference number"
I know exactly what I need to do, I'm just not as familiar with SQL as i'd like to be, so any help would be greatly appreciated. Thanks in advance.
Code for reference:
<div class="form-section grid12" id="changedates">
<h1>Change Dates</h1>
<?php
$query = mysql_query("SELECT * FROM users WHERE admin='y'");
?>
<table>
<?php
while($row = mysql_fetch_assoc($query)) {
?>
<tr>
<td>
<h5><?php echo $row['displayname'];?></h5>
</td>
<td>
<form action="" method="POST">
<input type="text" name="subdate[<? echo $row['id'] ?>]" value="<?php echo $row['submissiondate'];?>">
<input type="text" name="nextupdate[<? echo $row['id'] ?>]" value="<?php echo $row['nextupdate'];?>">
</td>
<td>
<input type="submit" value="Set Date" name="setdate">
</form>
</td>
<?php
}
?>
</table>
</div>
You could use foreach...
foreach ($_POST[nextupdate] as $rowId => $time)
{
// do db update
}
Edit: Just realised you have more than one input per form.
Why not name each input with an array name:
<input type="text" name="form_data[<?= $row_id ?>][subdate]">
<input type="text" name="form_data[<?= $row_id ?>][nextupdate]">
In PHP:
foreach ($_POST[form_data] as $rowId => $values)
{
$subdate = $values[subdate];
$nextupdate = $values[nextupdate];
// do SQL stuff
}
I've been trying to develop a real estate page where people can add listings. I am new to the world of php mysql. I have been over this problem for over a day and can't figure out where the problem is.
I have a form where people can add data. That's good and working. Now I am starting to have a place where people can add / delete / update their info. I am trying to build this step by step.
This is where a user could pull the information. My problem is with the piece of the code:
edit_form.php?idBAR=$row[id].
Full code below.
<table>
<tr>
<td align="center">EDIT DATA</td>
</tr>
<tr>
<td>
<table border="1">
<?php
include"configS_OH.php";//database connection
$order = "SELECT * FROM braaasil_brokerstour.property";
$result = mysql_query($order);
while ($row=mysql_fetch_array($result)){
echo ("<tr><td>$row[id]</td>");
echo ("<td>$row[address]</td>");
echo ("<td>$row[day]</td>");
echo ("<td>$row[hours]</td>");
echo ("<td>Edit</td></tr>");
}
?>
</table>
</td>
</tr>
</table>
Then this tutorial try to pass id through the address bar (I don't know much about php to actually say much)
It tries to upload the data into a new form where a person could edit info.
But I can't load the data into the new form. If I use where id=7, I get the info into the form. But this method of passing the info in the address bar like ?idBAR=8... and then try to catch it in the other code (where id=$idBAR), is not working.
Here is the code:
<table border=1>
<tr>
<td align=center>Form Edit Employees Data</td>
</tr>
<tr>
<td>
<table>
<?php
include "configS_OH.php";//database connection
print $database;
$order = "SELECT * FROM braaasil_brokerstour.property
WHERE id='$idBAR'";
print $idBAR;
$result = mysql_query($order) or die( mysql_error() );
$row = mysql_fetch_array($result);
?>
<form method="post" action="edit_data.php">
<input type="hidden" name="idBAR" value="<?php echo "$row[id]"?>">
<tr>
<td>Address</td>
<td>
<input type="text" name="address"
size="20" value="<?php echo "$row[address]"?>">
</td>
</tr>
<tr>
<td>Date</td>
<td>
<input type="text" name="day" size="40"
value="<?php echo "$row[day]"?>">
</td>
</tr>
<tr>
<td>Time</td>
<td>
<input type="text" name="time" size="40"
value="<?php echo "$row[hours]"?>">
</td>
</tr>
<tr>
<td align="right">
<input type="submit"
name="submit value" value="Edit">
</td>
</tr>
</form>
</table>
</td>
</tr>
</table>
I tried an tried and tried..
Thank you for your time in advance.
WHERE id='$idBAR'
You haven't assigned $idBAR any value. You need to read it from the $_GET array first:
$idBAR = $_GET['idBAR'];
You should, of course, check that this value exists first, and is acceptable.
I don't see anywhere you have actually used the GET data, just the reference name which is used in GET.
If you first query is working and is getting the $row['id'] value ok - you can verify this when you go to edit_form.php, in your browser URL bar at the top, does it say this:
edit_form.php?idBAR=7
(or whatever number should be there)
If so, then you just need to use the PHP GET. Your data is stored in $_GET[], and in this case, the reference name is idBAR. So your id from your previous page query is sent through the link into your URL, and on your edit_form.php page, you'd use that data as:
$_GET['idBAR']
You can use that, but personally I assign the data to a variable, such as:
$strGetId = $_GET['idBAR'];
Then you can use $strGetId throughout your code.
Also, check things like isset(), empty() etc, just so you know you are working with A) something is actually there, and B) it's not empty etc
if you are putting a variable directly in a string without concatenating, it can't be an array variable; you must concatenate those you also need to surr. so this
echo ("<td>Edit</td></tr>");
should be this
echo ("<td>Edit</td></tr>");
also, it looks like your form is sending data with POST. When you pass form data in the url string after the question mark, that is passing with get.
so...in your form where you want to use that variable, you set it up like this
$idBAR=$_GET['idBAR']; //to get the variable if it was part of the URL
$idBAR=$_POST['idBAR']; //if it was sent with post, as is the case with your form
also, request contains both get and post, so
$idBAR=$_REQUEST['idBAR'];
will work in either case.
The problem is the $row[id] is seen as text just like everything else. You want the value of $row[id]. Instead of
echo ("<td>Edit</td></tr>");
try
echo ("<td>Edit</td></tr>");