I have a website that converts the input texts to QRcode. The problem is that I can only get access to the first input text. For example I have this code:
Page1.php
<form action="getForm.php" method="post">
<input type="text" id="text1id" name="Text1"> //I have access
<input type="number" id="text2id" name="text2"> <br><br> //I dont have access
<input type="submit" value="Submit" name="submit_y">
</form>
I only have access to the first "Text1" because I dont know hot to pass two variables to qr code. This is the code of the qrcode
getForm.php
if(isset($_POST['submit_y'])) {
include('phpqrcode/qrlib.php');
$text=$_POST['Text1'];
//I tried to put here the POST of Text2
$folder="images/";
$file_name="qr.png";
$file_name=$folder.$file_name;
QRcode::png($text,$file_name);
echo"<img src='images/qr.png'>";
//To Display Code Without Storing
//QRcode::png($text);
}
Assign variables to each POST array, then use the one from both to form a third variable from the concatenated ones.
if(isset($_POST['submit_y']))
{
include('phpqrcode/qrlib.php');
$text1=$_POST['Text1'];
$text2=$_POST['text2'];
$text3 = $text1. "" . $text2; // concatenated from previous 2
$folder="images/";
$file_name="qr.png";
$file_name=$folder.$file_name;
QRcode::png($text3,$file_name); // used $text3 from the concatenated variables
echo"<img src='images/qr.png'>";
//To Display Code Without Storing
//QRcode::png($text);
}
However, it is best to also check if any of the inputs are empty.
Sidenote:
In this $text3 = $text1. "" . $text2; you can add anything inside the "" as a separator.
I.e.: using an underscore.
$text3 = $text1. "_" . $text2;
It could also be a space
$text3 = $text1. " " . $text2;
The choice is yours.
Related
I have four input texts and one submit button
enter image description here
what I want is for the results of the input text to turn into a link that I use as a whatsapp message like this.
https://wa.me/628123456789?text=Hai%20My%20Name%20Andi
what should i do?
this is my code
<!DOCTYPE html>
<html>
<head>
<title></title>
</head>
<body>
<!-- https://wa.me/628123456789?text=textInput1%20textInput2%20textInput3%20textInput4 -->
<form action="https://wa.me/628123456789?text=textInput1%20textInput2%20textInput3%20textInput4" method="post">
<input type="text" name="textInput1" id="textInput1" ><br><br>
<input type="text" name="textInput2" id="textInput2" ><br><br>
<input type="text" name="textInput3" id="textInput3" ><br><br>
<input type="text" name="textInput4" id="textInput4" ><br><br>
<input type="submit" name="submit" value="Submit">
</form>
<?php
//target url --> https://wa.me/628123456789?text=textInput1%20textInput2%20textInput3%20textInput4
$url = null;
if(isset($_POST['submit']))
{
$textInput1 = $_POST['textInput1'];
$textInput2 = $_POST['textInput2'];
$textInput3 = $_POST['textInput3'];
$textInput4 = $_POST['textInput4'];
$url = "https://wa.me/628123456789?text=".$textInput1." ".$textInput2." ".$textInput3." ".$textInput4;
}
?>
</body>
</html>
this is var_dump result for my code
enter image description here
Simply set your form to method post, see my code below. Add name attributes to your inputs fields and submit button so you can retrieve their values through http post. Then check to see if the submit button has been posted using isset($_POST['submit']). If isset, we assign the values of your input fields to variables in order to recreate the urls post key/value pairs.
IMPORTANT NOTE: I am not covering cleaning of your input fields make sure to read up on proper cleaning of inputs depending on what you are allowing to be processed by the back-end code in order to recreate your url.
<form action="/https://wa.me/628123456789?text=textInput1%20textInput2%20textInput3%20textInput4" method="post">
<input type="text" name="textInput1" id="textInput1" ><br><br>
<input type="text" name="textInput2" id="textInput2" ><br><br>
<input type="text" name="textInput3" id="textInput3" ><br><br>
<input type="text" name="textInput4" id="textInput4" ><br><br>
<input type="submit" name="submit" value="Submit">
</form>
PHP:
//target url --> https://wa.me/628123456789?text=textInput1%20textInput2%20textInput3%20textInput4
$url = null;
if(isset($_POST['submit'])){
$textInput1 = $_POST['textInput1'];
$textInput2 = $_POST['textInput2'];
$textInput3 = $_POST['textInput3'];
$textInput4 = $_POST['textInput4'];
$url = "https://wa.me/628123456789?text=".$textInput1." ".$textInput2." ".$textInput3." ".$textInput4;
}
Example OUTPUT. Simply outputting the url within an html page in example:
In your html simply echo out the variable $url. it will only display in your code when it is actually set. <?=$url?> or <?php echo $url;?>
NOTE: If you are trying to place the link into your action attribute of your form prior to submitting the page so that the values set in the input fields are a part of the forms action, you will need to get the values before submitting the page by using JS or JQuery and getting the values of the inputs on change or something of that nature, then build the url in js/jquery then set your forms attribute action using JS/Jquery.
EDIT: I want the result of the input text to be a whatsapp message, so it will be placed in the url link. I have updated my post
Okay, to redirect user once the form is filled out and you have sanitized your inputs, set the url in your a header() function and redirect your user to the desired url.
*Make sure you remove the action attribute from your form as you will be redirecting using the php header() function instead.
if(isset($_POST['submit'])){
// I am using filter_var(FILTER_SANITIZE_STRING) in this example.
$textInput1 = filter_var ( $_POST['textInput1'], FILTER_SANITIZE_STRING);
$textInput2 = filter_var ( $_POST['textInput2'], FILTER_SANITIZE_STRING);
$textInput3 = filter_var ( $_POST['textInput3'], FILTER_SANITIZE_STRING);
$textInput4 = filter_var ( $_POST['textInput4'], FILTER_SANITIZE_STRING);
// make sure to test this url by echoing it out before you run the header redirect.
$url = urlencode("https://wa.me/628123456789?text=".$textInput1." ".$textInput2." ".$textInput3." ".$textInput4);
header("Location: $url");
exit();
}
Using a conditional with a foreach loop with header to contruct url from post values:
if(isset($_POST['submit'])){
$url = "https://wa.me/628123456789?text="; // declare the core of your url without the post values
$i = 1; // increment
$k = 0; // key value for $inputs
$userinput = ''; // empty variable to hold user inputs for encoding
$num = count($_POST) - 1; // count the number of items in the array to properly format spaces in url string subtract one for submit button
foreach($_POST as $value){ // run a foreach loop on the $_POST
if($value !== "Submit"){ // we remove the submit post value from our array by omitting it using does not equal
$inputs[] = filter_var ( $value, FILTER_SANITIZE_STRING); // create a new array and push values into it
if($i < $num){ // all but last iterations will produce the space
$url .= $input[$k]." ";
}else{ // last iteration will not have a space
$url .= $input[$k];
}
}
}
$url .= urlencode($userinput);
echo $url; // for testing purposes to make sure the string is populating the input values as you have entered them delete this line after testing.
//header("Location: $url"); <-- Uncomment this line to redirect
//exit(); <-- uncomment exit() if you uncomment header() to close after redirect to make sure code stops on this page.
}
Just add the function urlencode() before the content:
$url = urlencode("https://wa.me/628123456789?text=".$textInput1." ".$textInput2." ".$textInput3." ".$textInput4);
Started learning PHP today so forgive me for being a noob. I have a simple HTML form where the user inputs 4 strings and then submits.
HTML form
<html>
<head>
<title>EMS</title>
</head>
<body>
<h1>EMS - Add New Employees</h1>
<form action="<?php echo $_SERVER["PHP_SELF"];?>" method="post">
<table>
<tr><td>Enter a NAME:</td><td> <input type="text" name="name"></td></tr>
<tr><td>Enter a PPSN:</td><td> <input type="text" name="ppsn"></td></tr>
<tr><td>Enter a PIN :</td><td> <input type="text" name="pin"></td></tr>
<tr><td>Enter a DOB:</td><td> <input type="text" name="dob"></td></tr>
<tr><td></td><td><input type="submit" value="Add New Employee" name="data_submitted"></td></tr>
</table>
</form>
</html>
I want to implode the 4 elements in the $_POST["data submitted"] array to a string.
PHP
<?php
if (isset($_POST['data_submitted'])){
$employee = implode(",",$_POST['data_submitted']);
echo "employee = ".$employee;
}
?>
Why is it that when I run the project, Input the 4 strings into the form and submit that there is nothing contained within the employee string when its outputed? There is however a value in the employee string when I just implode the $_POST array like so without 'data_submitted'.
$employee = implode(",",$_POST);
The output of the $employee string is now - employee = will,03044,0303,27/5/6,Add New Employee
It contains the name,pps,pin,dob and this ADD New Employee value?
How do I just get the $employee string to contain just the name,pps,pin and dob from the $POST_[data_submitted] array?
If you wish to implode the submitted data, then you need to refer to the specific items, as follows:
<?php
$clean = [];
if (isset($_POST['data_submitted'])){
// one way to deal with possibly tainted data
$clean['name'] = htmlentities($_POST['name']);
$clean['ppsn'] = htmlentities($_POST['ppsn']);
$clean['pin'] = htmlentities($_POST['pin']);
$clean['dob'] = htmlentites($_POST['dob']);
$employee = implode(",",$clean);
echo "employee = $employee";
}
Never use submitted data without first checking to make sure that it is safe to do so. You need to validate it. Since the OP doesn't specify what kind of data the named inputs "ppsn", "pin", "dob" pertain to, this example does a minimum of validation. Each input might require more or something different.
Whether you're new or familiar with PHP, it is a good idea to frequently read the online Manual.
First, you need to know that php will treat value in the format: value="value here" as string.
So, calling implode(",",$_POST['data_submitted']); will return Add New Employee as declared here: <input type="submit" value="Add New Employee" name="data_submitted">.
From your question:
How do I just get the $employee string to contain just the name, pps, pin and dob from the $_POST[data_submitted] array?
Solution
1. Unset the <code>$_POST['data_submitted']</code> index in the $_POST super global variable
2. Implode it
// Unset the $_POST['data_submitted'] index
$post_data = unset( $_POST['data_submitted'] );
// Format the post data now
$format_post_data = implode( ",", $post_data );
// Escape and display the formatted data
echo htmlentities( $format_post_data, ENT_QUOTES );
I am trying to implement the DudaMobile API White Label Self Service Solution found here: https://support.dudamobile.com/API/API-Use-Cases/White-Label-Self-Service
I have a form that the user fills out for first and last name, email and site address they want to import into the mobile builder.
Form code:
<form action="mobile.php" method="post">
E-mail: <input type="text" name="email"><br>
First Name: <input type="text" name="firstname"><br>
Last Name: <input type="text" name="lastname"><br>
Existing Website URL to Import <input type="text" name="site"><br>
<input type="submit">
</form>
PHP Code getting the POST values into variables:
// Here you should define the sub account name, the first name and the last name
$accountName = $_POST["email"];
$firstName = $_POST["firstname"];
$lastName = $_POST["lastname"];
$site = $_POST["site"];
The API works up until Step 2 where it attempts to call the site URL from the $site variable or the post data $_POST["site"].
// define the site url you would like to provide. We are using moeplumbing.com as an example here
$data = '
{
"site_data":
{
"original_site_url":"{original_site_url}"
}
}
';
I've tried replacing {original_site_url} with $site, "site" or $_POST["site"] and every combination of different quotes, dots and brackets, and I either get a syntax error, Unrecognized Token error or No Such URL error. I've even tried an array instead with no luck.
What is the correct syntax to give a original_site_url a value of the $site variable?
Figured it out. The correct format for JSON calling a variable is this:
"original_site_url":"'.$site.'"
You could also escape the double quotes in the JSON so that you can reference the variables inline:
// define the site url you would like to provide. We are using moeplumbing.com as an example here
$data = "
{
\"site_data\":
{
\"original_site_url\":\"$site\"
}
}
";
I am currently writing some search engine, where this page is retrieving some _GET variables from a previous page. This is working as intended.
Now I am using those variables as default value in a POST form. However, for some reason, only the first word for each of them is showing up. The form code is as follows:
<form action = "insert.php" method = 'POST'>
<Place name <input type="text" name="name" size = "30" value= <?php echo $_GET['name']; ?> />
Note that when echoing $_GET['name'] anywhere else in the page, everything is fine. Multiple words show up as expected, but when I use it as a text box default value, only the first word shows up on the textbox.
At first, I thought it had something to do with the way those $_GET variables are sent in the URL so I tried this:
$fullname = array();
$fullname = explode("%20", $_GET['name']);
$aaa = implode (' ',$fullname);
...
Place name <input type="text" name="name" size = "30" value= <?php echo $aaa; ?> />
but the result is still the same. If I echo it anywhere else in the page I get the full string, but if it's inside the form only the first word shows up.
What am I missing here?
The value attribute of the input tag needs to be in quotes:
<input type="text" name="name" size = "30" value="<?php echo $_GET['name']; ?>" />"
Otherwise, if $_GET['name'] contains spaces you'll end up with something like: value=John Smith. That will be understood as value=John with an invalid Smith attribute floating around.
Also, consider sanitizing $_GET['name'] with htmlspecialchars. Consider what would happen if $_GET['name'] was "/><script>alert(0)</script><. You'd end up embedding user-controlled code on your website, resulting in a reflected XSS.
I have a problem with my webpage. I have this admin.txt file that contains "foo", and "bar" on the next line. Now on my webpage is a form where I must input two values, and when submitted will check if the values I inputted on the text inputs are equal with the values in the text file, but always returns fail even if i typed in the same values with the text file which is foo and bar. Check my codes:
index.php
<?php
<form method="post" action="check.php">
<input type="text" name="text1">
<input type="text" name="text2">
<input type="submit">
?>
check.php
$location = "txt/admin.txt";
if ( file_exists( $location )) {
$page = join("",file("$location"));
$txt = explode("\n", $page);}
$text1 = $_POST['text1'];
$text2 = $_POST['text2'];
if ($text1==$txt[0] && $text2==$txt[1]){
echo "success.";
}
else
echo "fail";
There may be additional invisible line break characters that cause the comparison to fail.
In Windows for example, the line break is \r\n, meaning your explode() will leave the \r in the data.
Always use trim() on data coming from files.
Alternatively, you can also use the file() function with the FILE_IGNORE_NEW_LINES parameter.