Find below my form and the action page it submits to. The _POST array is empty. Not sure how. Please help.
index.php
<form method="post" action="track-them.php">
<input type="text" width="255" id="txt" />
<textarea id="ta" type="text" cols="25" rows="4"></textarea>
<input type="submit" id="check-button" value="Ok" />
</form>
track-them.php
<?php
include_once('../simple_html_dom.php');
print_r($_POST);
?>
Both fields txt & ta have values but the output I see when I click submit is:
Array ( )
Add name attribute to your form elements:
<form method="post" action="track-them.php">
<input type="txt" width="255" id="myurl" name="myurl" />
<textarea id="ta" name="ta" type="text" cols="25" rows="4"></textarea>
<input type="submit" id="check-button" value="Ok" />
</form>
Give your inputs a name. The browser passes the name attribute not the id.
If you put the print_r($_POST) above the inclution what is the result ?
Please add name attribute for each from element
Related
I have a php and html based tool that has a form that, when submitted, outputs the data reformatted using echo commands.
I'd like to add a 2nd form to the same page that will also output using echo.
My issue is, when I submit the 2nd form the first forms output disappears. I'd like to make it so the echo output from the first form does not go away when the 2nd form is submitted so they will both be on the screen at the same time.
Is there a way I can do this?
Only one <form> block in a page can be submitted at a single time. <input> fields defined in one form will not be submitted when the other form is submitted.
e.g.
<form>
<input type="text" name="foo" />
<input type="submit" />
</form>
<form>
<input type="text" name="bar" />
<input type="submit" />
</form>
Clicking on submit will submit either a foo field, OR a bar field. Not both. If you want both fields to be submitted, then you have to either build them into a SINGLE form:
<form>
<input type="text" name="foo" />
<input type="text" name="bar" />
<input type="submit" />
</form>
or use Javascript to copy the data from one form to another.
<form method="post"> <div>Module1</div> <input type="text"
value="module1" name="module_id"> <input type="text" value="title 1"
name="title"> <input type="text" value="some text 1" name="text">
<input type="submit" name="form_1" value="submit"> </form>
<form method="post"> <div >Module2</div> <input type="text"
value="module2" name="module_id"> <input type="text" value="title 2"
name="title"> <input type="text" value="some text 2" name="text">
<input type="submit" name="form_2" value="submit"> </form>
<?php
if(isset($_POST['form_1'])){
echo '<pre>';
print_r($_POST); }
if(isset($_POST['form_2'])){
echo '<pre>';
print_r($_POST); } ?>
Yes,you can do it.
Eg :
// form1 on page a.php
<form method="post" action="a.php" name="form_one" >
<input type="text" name="form_1" value="if(isset($_POST['form_1'])) echo $_POST['form_1']; ?>" >
<input type="submit" name="submit_1" >
</form>
<?php
if(isset($_POST['submit']))
{
?>
<form method="post" action="a.php" name="form_two" >
<input type="text" name="form_2" value="if(isset($_POST['form_2'])) echo $_POST['form_2']; ?>" >
<input type="submit" name="submit_2" >
</form>
<?php
}
?>
Now when you will submit form_one you will see form_two appear and the value in form one will stay intact in form_one and one the submitting form two the value will remain.
Hope it helped :)
I want to know how to make user enter some text inside a textarea then when he press the save button the text that he typed get saved inside a file here is my code :
<?php
header("location: add/Project.html" );
$handle = fopen("Project.html", "a");
foreach($_POST as $value) {
fwrite($handle, $value);
}
fclose($handle);
exit;
?>
This code works but with the <input> only for example here is my html Code :
<form action="add.php" method="post">
<textarea type="text" name="code" id="code" value="" ></textarea>
<input type="text" name="code" id="code" value="" /><input value="Submit" tabindex="4" type="submit" >
</form>
It will output only the text that was written in the <input>
Can you help me please !
Your textarea and input have the same name. To fix, give them different names:
<form action="add.php" method="post">
<textarea type="text" name="codetextarea" id="codetextarea" value="" ></textarea>
<input type="text" name="codeinput" id="codeinput" value="" />
<input value="Submit" tabindex="4" type="submit" />
</form>
(They also have identical ids, which is even illegal in XHTML)
If you have inputs with the same name (and that name doesn't end in []), then PHP will ignore all but one of them (as far as I can tell, this makes it unique among form processing libraries). Give them different names.
Alternatively, rename them to code[] and PHP will populate $_POST['code'] with an array. Then loop over that array instead of $_POST itself.
The two answers above mine have the point. Also, you don't need value attribute in <textarea>, because textarea's value comes from whatever is within opened and closed <textarea></textarea> tags. It is different than for <input> tags.
Also, when opening a file, you should specify another 'reading' property called binary ( a letter b ).
So it should look like
$handle = fopen('path_to_file.extension','ab');
This is for compatibility purpose
Try this
<form action="add.php" method="post">
<textarea name="codetextarea" id="codetextarea" value="" ></textarea>
<input type="text" name="codeinput" id="codeinput" value="" />
<input value="Submit" tabindex="4" type="submit" />
</form>
I have a form for searching products which will be visible in each page. When the search button is clicked it will redirect to a search.php page. I want to send a query string (parameter) with the content of the search text box when the button is clicked. The code for the form is simple, but here it is:
<form method="post" action="search.php">
<input type="text" id="txtSearch" name="txtSearch" class="searchInput" value="" />
<input type="submit" id="btnSubmit" name="btnSubmit" value="Search" ?>'" />
</form>
I want that when clicked this will redirect to search.php?q=txtSearch. Thanks.
Change "POST" to "GET" on the form element and change the input name parameter to "q".
use :
<form method="get" action="search.php">
<input type="text" id="txtSearch" name="q" class="searchInput" value="" />
<input type="submit" id="btnSubmit" name="btnSubmit" value="Search" />
</form>
<form method="post" action="search.php?q=txtSearch">
<input type="text" id="txtSearch" name="txtSearch" class="searchInput" value="" />
<input type="submit" id="btnSubmit" name="btnSubmit" value="Search" />
</form>
This way submitting the form you'll be redirect to search.php?q=txtSearch and from php you can get the $_POST variable so
$_POST['txtSearch']
$_POST['btnSubmit']
Just use GET instead of POST
<form method="get" action="search.php">
The name of the fields will be the name of the querystring variable. Like this:
?input_name=input_value
<form method="post">
<label>
<input type="text" value="" size="18" name="searchtxt" class="box"/>
<input type="submit" value="Search" class="button" name=""/>
</label>
</form>
I pressed submit,but searchtxt is not submitted,why?
Make sure you're referencing it through the $_POST array:
print $_POST["searchtxt"];
It's a common mistake to instead try accessing the value as a straight variable: $searchtxt; And on a side note, your HTML needs to be reorganized a bit:
<form method="post">
<label>Search:</label><input type="text" name="searchtxt" class="box"/>
<input type="submit" value="Search" class="button" name=""/>
</form>
Your HTML is a little screwy. The inputs should not go inside the label. See this document. See if that helps any.
Probably because <input> elements are not meant to go inside <label> elements.
I'm trying to create a BMI calculator. This should allow people to use either metric or imperial measurements.
I realise that I could use hidden tags to solve my problem, but this has bugged me before so I thought I'd ask: I can use $_POST['variableName'] to find the submitted variableName field-value; but...I don't know, or see, how to verify which form was used to submit the variables.
My code's below (though I'm not sure it's strictly relevant to the question):
<?php
$bmiSubmitted = $_POST['bmiSubmitted'];
if (isset($bmiSubmitted)) {
$height = $_POST['height'];
$weight = $_POST['weight'];
$bmi = floor($weight/($height*$height));
?>
<ul id="bmi">
<li>Weight (in kilograms) is: <span><?php echo "$weight"; ?></span></li>
<li>Height (in metres) is: <span><?php echo "$height"; ?></span></li>
<li>Body mass index (BMI) is: <span><?php echo "$bmi"; ?></span></li>
</ul>
<?php
}
else {
?>
<div id="formSelector">
<ul>
<li>Metric</li>
<li>Imperial</li>
</ul>
<form name="met" id="metric" action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post" enctype="form/multipart">
<fieldset>
<label for="weight">Weight (<abbr title="Kilograms">kg</abbr>):</label>
<input type="text" name="weight" id="weight" />
<label for="height">Height (<abbr title="metres">m</abbr>):</label>
<input type="text" name="height" id="height" />
<input type="hidden" name="bmiSubmitted" id="bmiSubmitted" value="1" />
</fieldset>
<fieldset>
<input type="reset" id="reset" value="Clear" />
<input type="submit" id="submit" value="Submit" />
</fieldset>
</form>
<form name="imp" id="imperial" action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post" enctype="form/multipart">
<fieldset>
<label for="weight">Weight (<abbr title="Pounds">lbs</abbr>):</label>
<input type="text" name="weight" id="weight" />
<label for="height">Height (Inches):</label>
<input type="text" name="height" id="height" /
<input type="hidden" name="bmiSubmitted" id="bmiSubmitted" value="1" />
</fieldset>
<fieldset>
<input type="reset" id="reset" value="Clear" />
<input type="submit" id="submit" value="Submit" />
</fieldset>
</form>
<?php
}
?>
I verified that it worked (though without validation at the moment -I didn't want to crowd my question too much) with metric; I've added the form but not the processing for the imperial yet.
To identify the submitted form, you can use:
A hidden input field.
The name or value of the submit button.
The name of the form is not sent to the server as part of the POST data.
You can use code as follows:
<form name="myform" method="post" action="" enctype="multipart/form-data">
<input type="hidden" name="frmname" value=""/>
</form>
You can do it like this:
<input type="text" name="myform[login]">
<input type="password" name="myform[password]">
Check the posted values
if (isset($_POST['myform'])) {
$values = $_POST['myform'];
// $login = $values['login'];
// ...
}
The form name is not submitted. You should just add a hidden field to each form and call it a day.
In the form submitting button (id method of form is post):
<input type="submit" value="save" name="commentData">
In the PHP file:
if (isset($_POST['commentData'])){
// Code
}
For some reason, the name of the submit button is not passed to the superglobal $_POST when submitted with Ajax/jQuery.
Use a unique value on the submit button for each form like so
File index.html
<form method="post" action="bat/email.php">
<input type="text" name="firstName" placeholder="First name" required>
<input type="text" name="lastName" placeholder="Last name" required>
<button name="submit" type="submit" value="contact">Send Message</button>
</form>
<form method="post" action="bat/email.php">
<input type="text" name="firstName" placeholder="First name" required>
<input type="text" name="lastName" placeholder="Last name" required>
<button name="submit" type="submit" value="support">Send Message</button>
</form>
File email.php
<?php
if (isset($_POST["submit"])) {
switch ($_POST["submit"]) {
case "contact":
break;
case "support":
break;
default:
break;
}
}
?>
As petervandijck.com pointed out, this code may be susceptible to XSS attacks if you have it behind some kind of log-in system or have it embedded in other code.
To prevent an XSS attack, where you have written:
<?php echo "$weight"; ?>
You should write instead:
<?php echo htmlentities($weight); ?>
Which could even be better written as:
<?=htmlentities($weight); ?>
You can use GET in the form's action parameter, which I use whenever I make a login/register combined page.
For example: action="loginregister.php?whichform=loginform"
I had a similar problem which brought me to this question. I reviewed all the preceding answers, but ultimately I ending up figuring out my own solution:
<form name="ctc_form" id="ctc_form" action='' method='get'>
<input type="hidden" name="form_nm" id="form_nm">
<button type="submit" name="submit" id="submit" onclick="document.getElementById('form_nm').value=this.closest('form').name;">Submit</button>
</form>
It seamlessly and efficiently accomplishes the following:
Passes the form name attribute via a hidden input field, without using the fallible value attribute of the submit button.
Works with both GET and POST methods.
Requires no additional, independent JavaScript.
You could just give a name to the submit button and do what needs to be done based on that. I have several forms on a page and do just that. Pass the button name and then if button name = button name do something.
Only the names of the form fields are submitted, but the name of the form itself is not. But you can set a hidden field with the name in it.