I have a form to index parts that belong to schematic drawings. We have hundreds of drawings and each one will have a different number of parts attached to it. Each part requires three pieces of information a number, part_id and Description. The initial form captures that and allows the user to add as many rows to the form as are needed to get all the parts from the drawing. The form fields are named Number_1, Part_id_1 and Description_1. Each row added to the form increments the number at the end by one. For example if a schematic has 10 parts I will end up with Number_1 - Number_10.
while ($i <= $Fieldnum) {
$Number = "Number_".$i;
$PartNumber = "PartNumber_".$i;
$Description = "Description_".$i;
print ("
<input name=$Number type=\"text\" size=\"3\" />
<input name=$PartNumber type=\"text\" size=\"20\" />
<input name=$Description type=\"text\" size=\"35\" />
");
$i++;
}
Where I'm stuck is getting the data into the MySQL database. Each form row needs to become a row in the database. If this was a static form it would be easy, but with each form element having a dynamic name I don't know how to proceed.
Use two tables. Create a table for the schematic. Create a table for parts, and assign a foreign key with the id of the schematic.
There is a better way to do that.
Give all your inputs the same name for a given element adding [] so it ends up as an array server side.
Here is an example:
<input name='number[]' .../>
<input name='part_number[]' .../>
<input name='description[]' .../>
You can have as much of these as you want...
Then server side just iterate through them :
for($i=0; $i<count($_POST['number']); $i++){
$row = array();
$row['number'] = $_POST['number'][$i];
$row['part_number'] = $_POST['part_number'][$i];
$row['description'] = $_POST['description'][$i];
//do your mysql insert here.
}
Related
Long time listener, first time caller. I am implementing a system to track who participates in various events. After defining the "activity" record, the plan is to populate another table with the list of members (lets say 60) who might have attended, then present a form for the organizer to 'check' who actually participated with the hours spent. This information is then passed by POST to update the database.
The issue deals with the array of Checkboxes, one for each participant, and correct handoffs to the DB update process. The problem is that the first time a checkbox is changed, either manually by the organizer or automatically to reflect a previous choice, it generates an extra element in the checkbox array, thereby throwing them all out of alignment with the other arrays. This link (Do checkbox inputs only post data if they're checked?) was the closest to the problem that I found, but did not address handling checkbox arrays.
I implemented the hidden checkbox approach per several posts, tried both absolute array indexing, and am I still get an extra array element every time. I even contemplated replacing the checkboxes with something less elegant like 2 radio buttons (Y/N) each or a two-value select field. I am definitely not an expert here and am willing to do the research and learn, but I've hit a dead-end.
Any ideas, workarounds, or links to other references for this would be appreciated.
Here is the code:
<?php
echo "<form action=\"index.php\" method=\"post\">";
$query = ((get stuff));
$result = mysqli_query($con, $query) or die ('Sorry, could not access the joined users+activitypart tables');
// extract and format all users for the activity
$i = 0;
while($row=mysqli_fetch_array($result, MYSQL_ASSOC))
{
$firstname = $row['firstname'];
$lastname = $row['lastname'];
$apidx[] = $row['apidx']; // Pointer to this user's record
$isParticipant[] = $row['isParticipant']; // checkbox value
$actduration[] = $row['actduration']; // Actual duration in hours spent
$role[] = $row['role']; // Role that this person held during this activity
?>
<input type="hidden" name="passidx[]" value="<? print $apidx[$i] ?>">
<input type="hidden" name="passpart[<? $i ?>]" value="0" />
<input type="checkbox" name="passpart[<? $i ?>]" value="1" <? if($isParticipant["$i"]) print "CHECKED" ?> />
<input type="text" name="passdura[]" size="7" value="<? print $actduration["$i"] ?>">
<?php
echo "$i $firstname $lastname<br>";
$i++;
}
?>
<!-- when done, pass all name field values to actusr08a -->
<br><input type="hidden" name="content" value="actusr08a">
<span class="form-field-no-caption">
<input type="submit" value="Submit">
</span>
</form>
So, When I load this page with 15 members, as a debug step, I count the 3 arrays and they all show 15, 15, 15 elements each at load time. If I click on 2 check-boxes, post it to the next page and do a count of the received arrays, two of the arrays (passidx, passdura) show 15 elements each, and the checkbox array (passpart) shows 17. since 2 checkboxes changed, seems they then post the change, thus the additional 2 elements. This is what I am trying to fix.
I have a MySQL database with auto-increment column "line numbers." In the form that is being submitted to the script, there are check boxes. I don't know how many check boxes there are, because each Customer has a different number of services that they're allowed to access. When the check box is clicked, they've used a service and the integer in column Available for that row needs to decrease by one. Sometimes, the user can say that multiple services were used and more than one row needs to be affected.
Where I'm becoming stuck is on two things: how the check boxes are named, and if I name them by the line number, how to access them with PHP.
while($cell = mysqli_fetch_array($service_details_query)) {
echo "</br>";
echo "<input type='checkbox' name='" . $cell['line_item'] . "'>";
}
The above code is how I'm making the check box. Probably the biggest part of the question is how I could better name it so that I can predict what names to look for ($_POST[name]) when the form is submitted (instead of a random number).
The other part I'm getting stuck on is, if I do decide to keep the naming strategy, how to fetch it. What I've thought of is to use a loop to extract the true/false data that's carried, but I don't know how to execute that. Sure, I can write a for or while loop, but I don't know how to extract the name of the object.
Is there any way I could carry extra data to a PHP script, other than the name?
Is there a better way I could name the check box so that I'm not stuck having to figure out a complicated way of finding the data, retrieving the name, etc.
I'm sort of a beginner when it comes to PHP. I know how to get my way around with for loops, while loops, basic commands such as echo... but I'm really lacking
while($cell = mysqli_fetch_array($service_details_query)) {
echo "</br>";
echo "<input type='checkbox' name='checkboxname[]' value ='".$cell['line_item']."'>";
}
It should do a $_POST array with the name checkboxname inside that array, you find the values.
You can find it threating $_POST['checkboxname'] as an array.
Try name it like: "checkbox_" . $cell['line_item'] so you can do something like this:
foreach($_POST as $name => $value)
{
if(substr($name, 9) == "checkbox_"){
//USE the value
}
}
or you could name like this:
echo "<input type='checkbox' name='services[]' value='" . $cell['id'] . "'>";
and get it as an array like this: $services = $_POST["services"];
Alright. Since you wanted to be able to add extra data, I thought I'd start over complicating stuff a lot! But it does the job. Explanation can be found in the codes comments.
First the HTML and Javascript part:
<!DOCTYPE HTML>
<html>
<head>
<script type="text/javascript">
// First we need to get our form
var myForm = document.getElementById("myForm");
// Next we're adding an event listener to the form submit so we can catch it
// and use a function to do some stuff before sending it over to the php file
myForm.addEventListener("submit", function(event){
// Now we need to temporarely stop the form from submitting
event.preventDefault();
// Next we need to get all our checkboxes
var checkBoxes = document.getElementsByClassName("myCheckbox");
// Now we need some arrays for all the data we're going to send over
// Basicly you make one for each data attribute
var lineNr = [];
var someThing = [];
// Lets loop through all checkboxes
for (var i=0; i<checkBoxes.length; i++) {
// Catch the ones checked
if (checkBoxes[i].checked) {
// Push the data attribute values to the arrays
lineNr.push(checkBoxes[i].dataset.linenr);
someThing.push(checkBoxes[i].dataset.something);
}
}
// Now we to JSON encode these arrays to send them over to PHP
var jsonLineNr = JSON.stringify(lineNr);
var jsonSomeThing = JSON.stringify(someThing);
// Since we cannot directly add these variables to our form submit,
// unless we use Ajax, we need to add them to our form in some
// hidden fields
myForm.innerHTML += "<input type='hidden' name='jsonLineNrs' value='"+ jsonLineNr +"' />";
myForm.innerHTML += "<input type='hidden' name='jsonSomeThings' value='"+ jsonSomeThing +"' />";
// All done, now we submit our form
myForm.submit();
}
</script>
</head>
<body>
<form method="POST" action="your_php_file.php" id="myForm" accept-charset="utf-8">
<input type="checkbox" class="myCheckbox" data-linenr="1" data-something="value1" />
<br />
<input type="checkbox" class="myCheckbox" data-linenr="2" data-something="value2" />
<br />
<input type="checkbox" class="myCheckbox" data-linenr="3" data-something="value3" />
<br />
<input type="submit" value="Submit" />
</form>
</body>
</form>
Next the PHP part:
<?php
// First we need to decode the JSON strings so we can use them
$jsonLineNrs = json_decode($_POST['jsonLineNrs']);
$jsonSomeThings = json_decode($_POST['jsonSomeThings']);
// Now both of those variables are arrays that contain all the data you wanted
// You can loop each of them to do stuff like
foreach($jsonLineNrs as $jsonLineNr){
echo $jsonLineNr; //Will echo out each line number
}
// Or if you want to loop through both simultaneously so you can
// keep each checked box data values together:
for($i=0; $i<count($jsonLineNrs)-1; $i++) {
echo $jsonLineNrs[$i].' - '.$jsonSomeThings[$i];
}
?>
Now before I finish this answer, one last warning: I didn't sanitize the user input in the Javascript part. It would make this answer even a lot more complicated and way to long. Be sure to do this, as you can NEVER EVER trust user input! Even if it's only checkboxes, POST data can be changed before it's submitted!
I would prefix the names depending on context, for example:
<input type='checkbox' name='service_" . $cell['line_item'] . "'>"
This way, if the checkbox represents a service, you could identify it by the prefix.
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.