I have a dynamic form that has the following field.
<input class="uk-input" id="Employer1Name" name="EmployerName[]" type="text" placeholder="">
The user can add as many as they need using a button which increments the id dynamically to keep them unique, for example:
<input class="uk-input" id="Employer1Name" name="EmployerName[]" type="text" placeholder="">
<input class="uk-input" id="Employer2Name" name="EmployerName[]" type="text" placeholder="">
<input class="uk-input" id="Employer3Name" name="EmployerName[]" type="text" placeholder="">
I won't know how many they include but I need to take this into PHP and get it into a table. I use JQuery Serialize and Ajax to get the data to the PHP script. Do I create a new variable for each item? If so how? I have:
foreach($_POST['EmployerName'] as $key => $value) {
echo $key." - ".$value;
}
This loops over all 'EmployerName' to get the key and value but I need to then process these into a MySQL statement into a database. I just don't know how to go about getting the data out of the loop, I am thinking of creating variables for each such as $EmployerName.$key = $value, but I get stuck with "Undefined variable: EmployerName in ..."
*edit
I can use $value to get the value but how do I associate that with a variable to use later?
There is much more data so doing anything in the loop will cause issues with other variables being looped over that only occur once.
I agree with #Nathanael, the correct way to associate the value with a new variable would be
${'EmployerName'.$key} = $value
But the values are already accessible with $_POST['EmployerName'][$i] where $i is the index, and you can get the total values count with count($_POST['EmployerName'])
If you want to store your data for later use you can do the following:
<?php
$newArray = array();
foreach($_POST['EmployerName'] as $key => $value) {
$newArray[$key] = $value;
}
die('<pre>' . print_r($newArray, true) . '</pre>');
Of course you can build your $newArray they way you need. For example with the other data you mentioned. Make sure you handle the user input and use PDO for your database operations later on.
Let me know if you have any other question
Working example: https://ideone.com/qPcG80
Related
I'm sorry for my English.
I have a dynamic php form connected to mysql DB. In stock array I save the mysql query results. I can access the name of the product[0] and its available quantity [4]. I use the name of the product[0] to set input name and available quantity to fix max parameter value, as it below:
<input type="number" name="<?php echo $stock[$i][0]?>" min="0" max="<?php echo $stock[$i][4]; ?>" value="0" style="width:4em>
I don't kwow how many inputs will be created (and which, because it is dynamic), so I save the name of the input created in another array $_SESSION["INPUTS"] as show:
array_push($_SESSION["inputs"],$stock[$i][0]);
In the next page, I want to $REQUEST the value from the inputs. Now I have the problem, I need to call $REQUEST for the created inputs which names are saved inside $_SESSION["inputs"], I need something as:` $REQUEST["$_SESSION["inputs"]]. I try it different ways without exit.
Any idea? Any alternative?
thanks
I think the best approach is by naming the input name attribute like an array: eg: "name=stock[the product name]". This approach allows you to discard the usage of the $_SESSION["inputs"].
<input type="number" name="stock[<?php echo $stock[$i][0];?>]" min="0" max="<?php echo $stock[$i][4]; ?>" value="0" style="width:4em">
Then to read the values:
$stocks = $_REQUEST['stock'];
foreach($stocks as $productName => $quantity) {
//...
}
This works because the inputs are converted to a php array after being submitted.
You can even get the number of inputs by calling count:
echo count($_REQUEST['stock']);
I have a form that will send data via POST. I want that data to go to different MySQL tables based on the POST "name."
What I have so far is a while loop for the form fields that will name each input in the format: "name"{}$id. I thought that using {} as a delimiter I could then use explode() and use a conditional statement to select which table the data should go to.
Is this the best way to do this? The issue I'm having is also calling the name, since using foreach for example on POST will just return the values and not the names. I have enclosed the code below:
<?php while ($cred = mysql_fetch_array($credentials_process)) { ?>
<div class="edit-profile-background-inputs">
<span><input type="text" name="cred{}<?php echo $cred['id']; ?>" value="<?php echo $cred['credentials']; ?>" /></span>
<span style="margin-left:10px;">Remove</span>
</div>
<?php } ?>
I need those fields named cred{} to go to credentials table, those named edu{} to go to the education table, etc.
<input type="text" name="cred[<?php echo $cred['id']; ?>]"...
<input type="text" name="edu[<?php echo $edu['id']; ?>]"...
in PHP
$insert=array();
foreach ($_POST['cred'] as $k=>$v)
{
$insert[$k]=mysql_real_escape_string($v); // yes I know mysql is being depreciated
}
$sql='INSERT INTO cred ('. implode(',', array_keys($insert)).') VALUES ('. implode(',', $insert).');
repeat for $_POST['edu']
If your results set is such that you're outputting more than one row with the same key
$i=0;
while ($cred = mysql_fetch_array($credentials_process)) { ?>
<input type="text" name="cred[$i][<?php echo $cred['id']; ?>]"...
...
$i++;
}
If you print_r($_POST) from that you'll be able to figure out how to deal with them.
NB. For safety I would also make sure only the expected posted vars get used
$allowed=array('cred_id', 'cred_something', 'etc');
foreach ($_POST['cred'] as $k=>$v){
if (!in_array($k, $allowed)) continue;
I am doing a project in which as per number getting by GET method, I display dynamic number of HTML Textbox for storing Multiple values. I am giving each textbox unique name+id in ascending manner starting from 1(Like textbox1,textbox2). Now I want that when I click on submit button, it should fire an insert statement which insert all textbox values at once. I know I can do by array, but my question is that how to get all textbox's value in an array and How to perform insert statement?
I have done following code:
Here is PHP Code for submit button:
$schedules = array();
if(isset($_POST['submit']))
{
for($d=1; $d<=$_GET['totalDay'] ;$d++)
{
array_push($schedules,$_POST['txtSchedule'.'$d']);
}
print_r($schedules);
}
Here is the html code:
<form method="post">
<table>
<tr>
<td>Day</td>
<td>Schedule</td>
</tr>
<?php
if(isset($_GET['tour_code']) and ($_GET['totalDay']!=1))
{
$tour_code = $_GET['tour_code'];
$total = $_GET['totalDay'];
$i=0;
do
{
$i=$i+1;
?>
<tr>
<td><?php echo $i;?></td>
<td>
<input name="txtSchedule<?php echo $i;?>" type="text" size="30"/>
</td>
</tr>
<?php
$start = date('Y-m-j',strtotime($start.'+1 days'));
}while($i!=$total);
}
?>
</table>
<input type="submit" name="submit" value="Add Tour Details" />
But I am getting an empty array.
Note: $total is coming through URLString's $GET method.
Below is the output of HTML:
Simplest thing first. You have an error, you can't use
array_push($schedules,$_POST['txtSchedule'.'$d']);
You must use DOUBLE QUOTES on the $d (single quotes won't evaluate d, it will literally read "txtSchedule$d" with a dollar sign, and not actually 0, 1,..., n)
array_push($schedules,$_POST['txtSchedule'."$d"]);
//or no quotes at all
array_push($schedules,$_POST['txtSchedule'.$d]);
(that may sovlve your problems)
But now let's get to how to make an array available to the $_POST object in the processing page via form naming conventions
You're not using array syntax, but you are oh-so close. In PHP, whatever is submitted needs to be of an expected format, and iterating txtSchedule0, txtSchedule1, ...txtScheduleN is not an Array(), but $_POST[] is an array that contains each (given what you've named your input fields, which is missing 1 small thing - square brackets).
What you need to do is be naming your inputs as an array is the array name followed by square brackets (arrayName[]), here is how you create an input array of the name txtSchedule (that way when you print_r($_POST['txtSchedule']) you get an Array())
<input name="txtSchedule[<?php echo $i;?>]" type="text" size="30"/>
I had the same issue when I started in PHP, you were forgetting the square brackets around [<?php echo $i;?>]
Just make sure that if you want to do an iteration over an array of inputs:
for($i=0; $i < count($_POST['txtSchedule']); $i++){
echo "They entered " . $_POST['txtSchedule'][$i] . " in the $i" . "th position";
}
... you have used the <input name="arrayName[$i]"> sytax, or even more simply <input name="arrayName[]"> for it to auto-magically generate an array on submit in the order the inputs were in the HTML page. The naming convention is so important, and since you have it wrong (you used arrayName0, arrayName1, ... arrayNameN instead of arrayName[0], arrayName[1], ... arrayName[n]), it will never be available to you as an array.
if i understand your question correctly you are trying to retrive user input from each textbox and save it in an array?
if so I would use jquery to select all textboxes and loop through them and retrive the value
If you are looking purely at the SQL syntax, then you can just append extra records to insert at the end of your query by providing more value sets:
INSERT INTO myTable (fieldName1, fieldName2) values ("Value1A", "Value1B"), ("Value2A", "Value2B")
If you looking at the PHP logic, then my first suggestion is to use the http POST method instead of GET. Then start with processing the $_POST fields:
$data= array();
foreach($_POST as $key => $value) {
if (preg_match('/^TextBox\d+$/', $key)) {
$data[] = $mysqli->real_escape_string($value);
}
}
The construct the SQL query based on the available data
if (count($data) > 0) {
$sql = 'INSERT INTO `myTable` VALUES("' . implode('"),("', $data).'")';
// log query
// execute query
// process query results
// redirect user to a thankyou page
header('Location: thankyou.php');
}
Note that the code assumes that you have a mysqli connection instance available at $mysqli
Not sure if this is what you are looking for but should give you at least a start..
String []ar=request.getParameterValues("name");
String cmd=request.getParameter("cmd");
if(cmd==null) cmd="";
if(cmd.equals("Submit")){
for(int i=0;i<ar.length;i++) {
insert logic;
<form method="post" action="page3.jsp">
<br/><input type="text" name="name"/>
<br/><input type="text" name="name"/>
<br/><input type="text" name="name"/>
<br/> <input type="submit" value="Submit" name="cmd"/>
</form>
Orignal post http://www.daniweb.com/web-development/jsp/threads/197777/insert-dynamic-textbox-value-in-database
I am building an application which has a dynamic table, everytime you open the page table`s row and columns changes based on data in database.
Each Row is a vendor company each colomn is a Item Title. All these vendors upply the same item, So this table has a textbox in each contains a TextBox so user can type the value, which represents the amount of fruit they want from that supplier. the following is the example.
So what I need to do now is, after entering these values, I'd like to process them through PHP, and then see 4 different reports at the confirm page, example: write the Company name and under that, what they have to supply for each item, then the next company, so on and so forth to the end.
I don't know if i should create different class for each textbox? or ID them!! SHould I Array them? I am confused.. If any of you guys can help, would be wonderful
Thanks a lot
I would suggest you just name the input elements as an array. something like:
<input type="text" name="fruits[company1][apple]">
<input type="text" name="fruits[company1][berries]">
<input type="text" name="fruits[company1][orange]">
<input type="text" name="fruits[company1][bannana]">
<input type="text" name="fruits[company2][apple]">
<input type="text" name="fruits[company2][berries]">
<input type="text" name="fruits[company2][orange]">
<input type="text" name="fruits[company2][bannana]">
or the same thing with the fruit being the first level and company name being second. It is really the same thing and generally just as easy to use either one. Just depends on how you want to loop over the data once you post the form. You might be better off also using ids for the company name and/or the fruit. Just makes it so, for example, company names with a space are still valid.
Using the above form, you can process the data with something like this:
<?php
foreach($_POST['fruits'] as $company=>$row){
foreach($row as $fruit=>$quantity){
if(!is_numeric($quantity) || $quantity < 0){
$quantity = 0;
}
echo "You selected {$quantity} {$fruit} from {$company}";
}
}
I would try creating a multi dim array with the ID of the item as the first dimension. Like this:
<input type="textbox" name="textbox[<?php echo $row['item_id']; ?>]["apple"]" value="<?php echo $row['apple']; ?>" />
Then, in your processing script:
foreach ($_POST['textbox'] as $row)
{
foreach ($row as $key => $val)
{
$q = "update `items` set `apple` = {$val['apple']} where `item_id` = {$key}";
mysql_query($q);
}
}
I've just started using jQuery. One thing I've been using it for is adding rows to a table that is part of a form.
When I add a new row, I give all the form elements names like 'name_' + rowNumber. I increment rowNumber each time I add a row.
I also usually have a Remove Row Button. Even when a row is removed, the rowNumber count stays the same to keep from repeating element names.
When the form is submitted, I set a hidden element to equal the rowNumber value from jQuery. Then in PHP, I count from 1 to the rowNumber value. Then for each value, I perform an isset($_REQUEST['name'_ . index]). This is how I extract the form elements that remained after deleting rows in jQuery.
Does anyone here have a better technique for accounting for deleted rows?
For some of our simpler tables, we use a field name such as 'name[]', though for JavaScript they would need a usable id.
It does add some complexity in that 'name[0]' has to assume 'detail[0]' is the correct element.
PHP will create an array and append elements if the field name ends with [] similar to
<input name="field[]" value="first value" />
<input name="field[]" value="second value" />
// is roughly the same as
$_POST['field'][] = 'first value';
$_POST['field'][] = 'second value';
Use arrays to hold you values in your submission. So bin the row count at the client side, and name your new elements like name[]. This means that $_POST['name'] will be an array.
That way at the server side you can easily get the row count (if you need it) with:
$rowcount = count($_POST['name']);
...and you can loop through the rows at the server side like this:
for ($i = 0; isset($_POST['name'][$i]; $i++) {}
You could extract all the rows by doing a foreach($_POST as $key => $value).
When adding a dynamic form element use the array naming method. for example
<input type="text" name="textfield[]" />
When the form is posted the textfield[] will be a PHP array, you can use it easily then.
When you remove an element make sure its removed from the HTML DOM.
Like blejzz suggests, I think if you use $_GET, then you can just cycle through all of the inputs that were sent, ignoring the deleted rows.
foreach ($_GET as $k=>$v) {
echo "KEY: ".$k."; VALUE: ".$v."<BR>";
}
I notice that you mention "accounting for deleted rows"; you could include a hidden input, and add a unique value to it each time someone deletes a row. For example, the input could hold comma-separated values of the row numbers:
<input type="hidden" value="3,5,8" id="deletions" />
and include in your jQuery script:
$('.delete').click(function(){
var num = //whatever your method for getting the row number
var v = $('#deletions').val();
v = v.split(',');
v.push(num);
v = v.join(',');
$('#deletions').val(v);
});
Then you should be able to know which rows were deleted (if that is what you were looking for).
you can use POST or GET
After submit you can use all of your form element with this automaticly. You dont need to reorganise your form element names. Even you dont need to know form elements names.
<form method="POST" id="fr" name="fr">.....</form>
<?php
if(isset($_POST['fr'])){
foreach($_POST as $data){
echo $data;
}
}
?>
Also you should look this
grafanimasyon.blogspot.com.tr/2015/02/veritabanndan-php-form-olusturucu.html
This is a automated form creator calcutating your database tables. You can see how to give name to form elements and use them.