I have a page that allows the user to add and remove text fields to a form using JavaScript.
Text fields are named field1, field2, field3, etc. and depends on how many fields the user has added
I'm trying to store all the values from my text fields into one Php variable;
I understand that i need to store them into an array first and then use implode(), but how can i specify how many inputs there are within my Php code?
Usually the best way to approach this is to use array-named input, as shown in the following example in the PHP docs:
<form action="" method="post">
Nombre: <input type="text" name="personal[nombre]" /><br />
Email: <input type="text" name="personal[email]" /><br />
Cerveza: <br />
<select multiple name="cerveza[]">
<option value="warthog">Warthog</option>
<option value="guinness">Guinness</option>
<option value="stuttgarter">Stuttgarter Schwabenbräu</option>
</select><br />
<input type="submit" value="submit me!" />
</form>
You could use the very same name for each of the user added fields, as in:
<input type="text" id="field1" name="fields[]" />
<input type="text" id="field2" name="fields[]" />
And then just use implode as required:
$imploded_fields = implode(', ', $_POST['fields']);
There are many options:
You can use cookies. Use PHP $_COOKIE to get it. For help.
You can use html hidden input fields - <input type="hidden" value=""> and can store actual number of fields in it.
But, Diego Agulló is better one
You can create a hidden field and initialize it with 1 if on option is already open(field1). And increase the the value of counter while increasing the value of fields and vise verse. On submit you will find the total fields added.
Thanks
Related
I'm currently working on at the displaying of information from a database. I was making a summary site where you can only see the important things of a table. After that i made the first element as an <input type="submit"> in a <form>, so u can click it and come to the detail site. My problem is now: The value of this input type has to be my ID, so i can query correctly on me detail site. I was wondering if it is possible to use something like a placeholder, so that the ID is the value, but on the input type is written other text.
My input:
<form method="post" action="Details.php">
<input type="submit" placeholder = "test" name="Overview" onclick="parent.location='Details.php'" value="<?php echo $data[$i1]; ?>">
</form>
How it currently looks
I want it that the input type still has the same value, but is displaying on the website something else like "test".
Greetings!
No, but buttons can have different values and labels.
<button name="foo" value="bar">baz</button>
Since you are using a form-tag per row, you can add a hidden input-field in the form and set the value of the submit-button to whatever you like.
<form method="post" action="Details.php">
<input type="hidden" name="id" value="<?php echo $data[$i1]; ?>" />
<input type="submit" name="Overview" value="test" />
</form>
I have a form and there is a button to append another set of input boxes if you wish to add more information. Everytime it adds a new set of boxes all the input boxes get a unqiue number added on for that set of input boxes.
Example:
If you have three sets of input boxes it would look like this:
name, age, gender, dob
name1, age1, gender1, dob1
name2, age2, gender2, dob2
However, when I send this information over to my php file I extract the information from the array so each one is a variable. So, name would be $name and name1 would be $name1 and so on. But my question is how can I sanitize and validate all the names at once and all the ages at once etc..
The reason I am asking is because I have googled this alot and I can't find an answer on how to do this.
Try to create sets as given in sample below:
For first set:
<input type="text" name="name[]" id="name1" />
<input type="text" name="gender[]" id="gender1" />
<input type="text" name="age[]" id="age1" />
<input type="text" name="dob[]" id="dob1" />
For second set:
<input type="text" name="name[]" id="name2" />
<input type="text" name="gender[]" id="gender2" />
<input type="text" name="age[]" id="age2" />
<input type="text" name="dob[]" id="dob2" />
and set all the further sets accordingly.
Now, to get posted data you can use
<?php
echo "<pre>".print_r($_POST, true)."</pre>";
?>
You may use something like this for each entity:
<input type="text" name="age[]" id="age1" />
Here, id should be in incremental order with JavaScript or jQuery and name should be same which will give you an array for all the attributes in $_POST or $_REQUEST
Print $_REQUEST and you will come to know how exactly you can get all the data.
You are already getting the array for the name, age, etc.
To sanitize use array_map() function in php. It will sanitize the array.
EXAMPLE
$result = array_map("stripslashes", $result);
Here $result is an array
I am a bit new to Javascript. I have a html form with multiple input types but with the same names occurring multiple types. I need to validate the form before inserting the data in the form into the database. I am able to update and insert into the database without JS validation but am unable to perform the validation part using javascript because of complications with handling inputs with the same names.
Here is the form:
<form name="confirmation" method="post" action="appointment.php" onsubmit="return check()">
<label>Restaurant Name: </label>
<input name="r_name[]" type="text" value="<?php echo $row[0]?>"><br>
<label>Appointment Date: </label>
<input name="app_date[]" type="date" value="<?php echo $row[1]?>"><br>
Confirm:<select name="confirm[]">
<option value=""></option>
<option value="yes">Yes</option>
<option value="no">No</option>
</select><br><br>
</form>
Here is the php code to update the database:
<?php
if(isset($_POST['submit'])){
$names= $_POST['r_name'];
$dates=$_POST['app_date'];
$confirm=$_POST['confirm'];
//echo $count;
for($i=0;$i<$count;$i++){
//echo "success";
$value=$confirm[$i];
if($value=="yes")
$value="y";
else
$value="n";
// echo $value;
$result= mysql_query("update appointment set confirm='".$value."' where rname='".$names[$i]."';");
}
}?>
To insert/update the data with same names in the form into the database I had to associate [] to their respective names for it was the easy way out. But I am having problem assessing it in javascript for the validation part. Could anyone suggest me how to go about doing it with a small code snippet with any of the names used for the input types used in the above form. Thanks.
If the names are the same for multiple input elements, you can use unique ids on the element if you want to target a specific element or you can use classes to target a group of similar elements.
<form>
<input name="myInput[]" id="myInput_0" class="myInput" type="text" value="">
<input name="myInput[]" id="myInput_1" class="myInput" type="text" value="">
<input name="myInput[]" id="myInput_2" class="myInput" type="text" value="">
</form>
Now you can target myInput[0] as getElementById('myInput_0') or all myInput[]s as getElementByClassName('myInput')
Try document.getElementsByName
https://developer.mozilla.org/en-US/docs/DOM/document.getElementsByName
you can use this jquery library http://www.position-relative.net/creation/formValidator/demos/demoValidators.html
You can use this validation after de excute the submit post and the librery make all the validations.
<form action="test.php" method="post">
Name: <input type="text" name="fname" />
<input type="hidden" name="fname" value="test" />
Age: <input type="text" name="age" />
<input type="submit" />
</form>
How can I read the values of both the fields named fname?
On my action file(test.php) under $_POST, I am getting only hidden field value.
Is there any PHP setting through which I can read both values?
I believe you want to name the fields as:
Name: <input type="text" name="fname[]" />
<input type="hidden" name="fname[]" value="test" />
to make PHP understand them as an Array.
In case someone wants to do this and doesn't want to change the name of the form elements, or can't, there is still one way it can be done - you can parse the $_SERVER['QUERY_STRING'] or http_get_request_body() value directly.
It would be something like
$vals=explode('&',http_get_request_body());
$mypost=Array();
foreach ($vals as $val) {
list($key,$v)=explode('=',$val,2);
$v=urldecode($v);
$key=urldecode($key);
if ($mypost[$key]) $mypost[$key][]=$v;
else $mypost[$key]=Array($v);
}
This way $mypost ends up containing everything posted as an array of things that had that name (if there was just one thing with a given name, it will be an array with only one element, accessed with $mypost['element_name'][0]).
For doing the same with query strings, replace http_get_request_body() with $_SERVER['QUERY_STRING']
If you want to pass two form inputs with the same name, you need to make them an array. For example:
<input type="text" name="fname[]" />
<input type="hidden" name="fname[]" value="test" />
You can then access it using the following:
$_POST['fname'][0]
$_POST['fname'][1]
You might want to rethink whether you really need to use the same name though.
Solutions are
1) Try using different name for textbox and hidden value
2) Use an array as mentioned above for field name
3) Its not possible as the values will be overwritten if the names are same
I have a form that has a series of check boxes and some line items have a text input next to them that defines quantity of the item.
<input type="checkbox" name="measure[][input]" value="<?=$item->id?>">
<input class="item_mult" type="text" name="measure[][input]" />
What is the best way to capture the integer from the input field and have it correspond to the check box so I can use it to calculate the total later on?
<input type="checkbox" name="measure[<?php echo $item->id; ?>][checked]" value="<?php echo $item->id; ?>">
<input class="item_mult" type="text" name="measure[<?php echo $item->id; ?>][input]" />
That should give the values $measure[1]['checked'] (only present if checked) and $measure[1]['input']
I corrected your short tags - they're a bad idea, as they are disabled in php by default so can cause issues if you move servers
You can give your array a name/id to associate them, just add it into the name attribute:
<input type="checkbox" name="measure[1][my_checkbox]" value="<?=$item->id?>">
<input class="item_mult" type="text" name="measure[1][my_text]" />