I am currently using this code:
<input type=button value='Call' class="call" onClick='voipCall("<?php echo $number_1;?>")'>
<input type=button id="callendbutton" class="hangup" value='Hangup' onClick='voipHangup()'>
which uses the variable $number_1 and passes it into a javascript function to call that number. Now I need another section which lets the user input their own number to call, but I'm not sure how to pass the information from the text input box into the function call.
Something like this:
<input type="text" tip="Enter alternate phone number" name="phonenumber" id="phonenumber" size="40" value=""/>
<input type=button value='Call' class="call" onClick='voipCall("#phonenumber")'>
<input type=button id="callendbutton4" class="hangup" value='Hangup' onClick='voipHangup()'>
Is there an easy way to do this?
Thanks for any help
You can use the id "phonenumber" to fetch the text-input node, and then get the current value from it:
var number = document.getElementById('phonenumber').value;
You can use javascript to get the text from your phonenumber input text field.
jquery:
voipCall($("#phonenumber").val())
Call that voipCall() in the voiphangup().
Use 'title' instead of 'tip'.
Use document.getElementById('phonenumber') to access the input field and get its value.
You can set a variable with default set by PHP if you want, getting the input field value if non empty, and use this variable in your JavaScript call.
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've setup a form with a table which includes rows from a database. I've used a variable to represent the database record ID as the name for one of the rows like this:
<td><input type="text" name= "<?php echo $recordID; ?>" class="form-control" placeholder="User Notes"></td>
which is working fine and ends up appearing like this in the browser:
<td><input type="text" name= "TSL1406" class="form-control" placeholder="User Notes"></td>
I'm having trouble retrieving the value when the form is submitted. I would normally use something like this:
$input = $_POST['userNotes']
which I've updated to handle the dynamic naming of the inputs like this:
$input = $_POST['.$recordID.'];
but this is returning an empty variable and I can't work out the correct syntax to retrieve the input from the $_POST array with a dynamically named input field?
single quote " ' " means literal, it won't display your variable name just literally .$recordID.. Try using double quotation instead.
$input = $_POST[".$recordID."];
Only $input = $_POST[$recordID]; without quotes?
or you use arrays like:
<input type="text" name= "form[<?php echo $recordID; ?>]" class="form-control" placeholder="User Notes"></td>
and save everything at once
$input = $_POST['form'];
Why don't you just simply use $_POST[$recordID]? However there is a better way to get POST variable using filter_input(INPUT_POST, $recordID)
When I do something like:
foreach($_POST as $post_key => $post_value){
/* Any code here*/
}
So, something like:
$varSomething = $_POST['anything'];
$varSomethingElse = $_POST['somethingElse'];
Is it possible? When I catch a $_POST[' '], isn't that variable already consumed?
The main reason why I would do this is because after a form submission, I want to check wether some items of some type got certain value or not.
Is there aything else more appropiate?
Firstly the html code don't use variable types, for example, if you have
<input id="check" type="checkbox" />
without a established value, after that you have echo $_POST['chek'], you could think that the result would be a boolean value (false or true), but the correct result will be "on" or "off", you can coding this case. Also, if you want to know the type of your data, you can use regular expression on server side, for example:
<input type="text" id="number" value="1350" />
.....
PHP code
$data = $_POST['number'];
$regularExpression = "/^\d{1,10}$/";
if (preg_match($regularExpression, $data)) {
echo "Is numeric";
}
Good lucky.
if you don't know what is the name of element which is sending the data. the first method is ohk . but if know the name like password or username you can use second one
in html
<input type="password" name ="password" />
in php
$pass_recvd=$_POST['password'];
there is no way to check the type i.e. text/password/checkbox/select etc. you have to do it on client side BEST WAY IS USING Jquery
if you wanna check whether a variable is set or not simple check by using isset method
if( isset($_POST['someVariableName'])) {}else{}
Users of my website can generate a custom form. All the fields are saved in a database with a unique ID. When someone visits the form, the fields 'name' attribute is field*ID*, for example
<p>Your favorite band? <input type="text" name="field28"></p>
<p>Your Favorite color? <input type="text" name="field30"></p>
After submitting the form, I use php to validate the form, but I don't know retrieve the value of $_POST[field28] (or whatever number the field has).
<?
while($field = $query_formfields->fetch(PDO::FETCH_ASSOC))
{
$id = $field[id];
//this doesn't work!!
$user_input = $_POST[field$id];
//validation comes here
}
?>
If anybody can help me out, it's really appreciated!
Add some quotes:
$user_input = $_POST["field$id"];
I'd suggest taking advantage of PHP's array syntax for forms:
<input type="text' name="field[28]" />
You can access this in php with $_GET['field'][28]
$user_input = $_POST['field'.$id];
Remember that you are using a string for the first part of the input name, so try something like: $user_input=$_POST['field'.$id];.
Also, I would suggest calling them into an array to retrieve all data:
<?php
$user_inputs=array();
while($field=$query_formfields->fetch(PDO::FETCH_ASSOC)) {
$id=$field['id'];
$user_inputs[]=$_POST['field'.$id];
}
?>
I am going back though a web-based document numbering system from few weeks ago. To sum it up, the user types in the project,class,base, and dash number (PPP-CCC-BBBB-DDD) then it is added to a mysql database. Now most doc numbers go in order according to revisions. IE: A document 1465-630-0001-000 becomes, after revision, 1465-630-0002-000.
The boss wants the system to automatically fill the input text box for the base number if it detects that the user is entering a revised doc. So if a user types in 1465 into the project field and 630 into the class field the system should autofill the base field with the next available number. In the previous example this would be 0002.
It needs to be able to search the database for the first two fields so that it can find the next available one. Is there anyway to do this using javascript or something? SO was really helpful with my last javascript question pertaining to this system.
heres an bit of my code if it helps:
` ?>
<div id='preview'></div>
<form id='item' action="submit.php?item=1" method="post">
Enter Title:<input type="text" name="title" size="20"><BR>
Choose Project Code:
<SELECT NAME="project">
<OPTION VALUE="">Project...
<?
$query = "SELECT * FROM project ORDER BY project asc";
$result = mysql_query($query);
while($row = mysql_fetch_assoc($result))
{
$num = ($row['project']);
$name = ($row['description']);
?>
<OPTION VALUE="<?=$num?>" ><? echo"{$num}" . " | " . "{$name}";?>
<?
}
?>
</SELECT><BR>
Choose Class Code:
<SELECT NAME="class">
<OPTION VALUE="">Class...
<?
$query = "SELECT * FROM class ORDER BY class asc";
$result = mysql_query($query);
while($row = mysql_fetch_assoc($result))
{
$num = ($row['class']);
$name = ($row['description']);
?>
<OPTION VALUE="<?=$num?>" ><? echo"{$num}" . " | " . "{$name}";?>
<?
}
?>
</SELECT><BR>
Assigned Base Number:<input type="text" name="base" size="20"><BR>
Enter Dash Number:<input type="text" name="dash" size="20"><BR>
Enter Comments:<input type="text" name="comment" size="40"><BR>
<input type="hidden" name="item" value="1"/> `
Just a simple html/php input form with the project and class code list generated from a database pertaining to each.
Thanks for any help-Thomas
Update:
So, you're going to need to make an AJAX call (see example in my comment below) to some PHP script that will retrieve the base value you want and then returns that to the AJAX request. Once the request gets a response, you can use that data to fill in the value the way I originally said...
On a side note, since the example I gave you is a jQuery AJAX function, you should probably check out how to use jQuery to select elements on the page, instead of using straight JS.
E.g. for getting by ID and replacing value:
$("#base").attr('value', valueFromAjaxCall);
How to change value with JS:
If you use PHP to get the base value you want to fill into the field, then you can fill the value in with:
var baseField = document.getElementsByName("base")[0];
baseField.value = <?=$baseValue?>;
The getElementsByName() call returns an array, which is why you have to index into the field you want. I would suggest giving your <input> an id so that you can use document.getElementById() instead. You would do something like:
<input type="text" id="base" size="20">
and the JS to get the input element would be:
var baseField = document.getElementById("base");
...therefore, no need to index, in case you named any fields with the same name.
**Not sure about the PHP syntax.
An ajax call on focus of the 3rd field firing back to the server the values of the first two fields?
first, you'll probably want to use jQuery since it has great support is easy to use and will feel familiar to someone used to PHP.
so include your jQuery javascript code that you can get from :
http://jquery.com/
then, assume a form that looks like:
{form}
<input type=text id='major' name='major' value=''>
{Or a select, your choice}
<input type=text id='minor' name='minor'>
{or a select again}
<input type=text id='sequence' name='sequence' onFocus='getNextSequence()'>
...
{/form}
in your head, have your javascript:
function getNextSequence(){
var major=$('#major').val();
var minor=$('#minor').val();
if(!major){
alert('Select a major version#');
$('#major').focus();
return(false);
}
if(!minor){
alert('Select a minor version#');
$('#minor').focus();
return(false);
}
$.getJSON('http://url.to.getnextNumber.php',
{major:major,minor:minor},
function(data){
if(!data.error){
$('sequence').val(data.nextSequence);
}else{
alert(data.error);
}
}
});
}
the jQuery getJSON call will make a call back to your URL with two $_POST variables, major and minor. do your query, save the result as $result=array('nextSequence'=>$x,'error'=>'false');
and convert it to JSON with echo json_encode($result);
don't include ANY headers or any other content in the output of that file, and jQuery will pull the correct value and insert it where it's supposed to bed