I'm new to php and here's my code for a number guessing game. Since I don't know how to define a random number, I chose the number myself, 80. I'm trying to store all the guesses prior to the right one, and after the right guess, print them out on the screen. But I can't seem to be able to get it right since it only prints only the last guess before the right one.
Any help is appreciated!
<html>
<head>
</head>
<body>
<?php
$allguesses = array();
if($_SERVER["REQUEST_METHOD"] == "POST"){
$t = $_POST["guess"];
$sayi = 80;
if($sayi >$t){
echo 'Guess higher';
}elseif($sayi == $t){
echo "You've guessed it right!<br>";
echo 'Guessed numbers: <br>';
foreach($_POST["tmn"] as $y){
echo $y . ',';
}
}else{
echo 'Guess lower';
}
array_push($allguesses,$t);
}
?>
<form method="post">
Guess the number:
<input type="number" name="guess" min ="1" max = "100"><br>
<input type="submit" name="submit">
<?php
foreach($allguesses as $x){
echo "<input type ='hidden' name = 'tmn[]' value=' ".$x . " '>";
}
?>
</form>
</body>
</html>
Sessions seem the best for where you are in your learning curve.
The session allows the normal stateless http protocol to remember things between each submission of a form or forms. So we will save each guess in an array of guesses in the SESSION, which in PHP is an array as well.
<?php
session_start(); // create a session, or reconnect to an existing one
if( $_SERVER["REQUEST_METHOD"] == "POST" && isset($_POST["guess"]) ) {
$_SESSION['guesses'][] = $_POST["guess"]; // keep an array of guesses
// $t = $_POST["guess"]; no need for extra variables on the stack
$sayi = 80;
if($sayi > $_POST["guess"]){
echo 'Guess higher';
}elseif($sayi == $_POST["guess"]){
echo "You've guessed it right!<br>";
echo 'Guessed numbers: <br>';
foreach($_SESSION['guesses'] as $guess){
echo $guess . ',';
}
$_SESSION['guesses'] = array(); // clear the old guesses out
}else{
echo 'Guess lower';
}
}
?>
<html>
<head>
</head>
<body>
<form method="post">
Guess the number:
<input type="number" name="guess" min ="1" max = "100"><br>
<input type="submit" name="submit">
</form>
</body>
</html>
Removed uneeded codes.
Changed method of showing previous guesses with the below code.
echo implode( ", ", $_POST["tmn"] ); // cleaner
This block handles storing previous guesses into an array that is used for displaying previous guesses.
if( isset( $_POST ) ) {
$_POST["tmn"][] = $t;
}
Fixed previous version of below block of code so that hidden <inputs> of previous guesses are outputted properly..
<?php
if( isset( $_POST["tmn"] ) ) {
foreach($_POST["tmn"] as $x){
echo "\n<input type ='hidden' name = 'tmn[]' value='$x'>";
}
}
?>
Updated Code:
<html>
<head>
</head>
<body>
<?php
if($_SERVER["REQUEST_METHOD"] == "POST"){
$t = $_POST["guess"];
$sayi = 80;
if($sayi >$t){
echo 'Guess higher';
}elseif($sayi == $t){
echo "You've guessed it right!<br>";
echo 'Guessed numbers: <br>';
echo implode( ", ", $_POST["tmn"] );
}else{
echo 'Guess lower';
}
if( isset( $_POST ) ) {
$_POST["tmn"][] = $t;
}
}
?>
<form method="post">
Guess the number:
<input type="number" name="guess" min ="1" max = "100"><br>
<input type="submit" name="submit">
<?php
if( isset( $_POST["tmn"] ) ) {
foreach($_POST["tmn"] as $x){
echo "\n<input type ='hidden' name = 'tmn[]' value='$x'>";
}
}
?>
</form>
</body>
</html>
For random numbers you can use rand($min, $max). to store the guesses you can use the global variable $_SESSION.
<html>
<head>
</head>
<body>
<?php
//start session (needed to use the $_SESSION variable)
start_session();
if($_SERVER["REQUEST_METHOD"] == "POST"){
//if empty -> initalize array
if (empty ($_SESSION['allguesses']){
$_SESSION['allguesses'] = array ()
}
$t = $_POST["guess"];
$sayi = 80;
if($sayi >$t){
echo 'Guess higher';
}elseif($sayi == $t){
echo "You've guessed it right!<br>";
echo 'Guessed numbers: <br>';
//echo all guesses from $_SESSION variable
foreach($_SESSION['allguesses'] as $y){
echo $y . ',';
}
}else{
echo 'Guess lower';
}
//push in $_SESSION variable
array_push($_SESSION['allguesses'],$t);
}
?>
<form method="post">
Guess the number:
<input type="number" name="guess" min ="1" max = "100"><br>
<input type="submit" name="submit">
</form>
</body>
</html>
Related
I am trying to create an adding game PHP and HTML, where the user guesses the sum of two random integers. However, when the user submits the answer, the integers randomize again, changing the sum and making the user's guess incorrect.
<?php
$x = (rand(1,10));
$y = (rand(1,10));
$sum = $x + $y;
if (isset($_POST['submit']))
{
$guess = $_POST['guess'];
if ($sum == $guess)
{
echo "nice, you got it right.";
}
else {
echo "aw, too bad. <br>";
}
}
echo "<br>What is " . $x . " + " . $y . "? <br>";?>
<form action="" method="post">
<input name="guess" type="text" />
<input name="submit" type="submit" />
</form>
I am expecting the output to be "nice, you got it right" when the $guess==$sum, but $sum changes when the form is submitted, making the 2 variables unequal.
Try to use session and store the two random number. PHP Session
just like this.
<?php
session_start();
if (isset($_POST['submit']))
{
$sum = $_SESSION['y'] + $_SESSION['x'];
$guess = $_POST['guess'];
if ($sum == $guess)
{
echo "nice, you got it right.";
}
else {
echo "aw, too bad. <br>";
}
}
$_SESSION['x']= (rand(1,10));
$_SESSION['y']= (rand(1,10));
echo "<br>What is " . $_SESSION['x'] . " + " . $_SESSION['y'] . "? <br>";
?>
<form action="" method="post">
<input name="guess" type="text" />
<input name="submit" type="submit" />
</form>
I hope I answer your problem. just read the PHP session it helps you a lot.
You can create a hidden input field to post the sum value. Then compare that value with the guessed value.
<?php
$x = (rand(1,10));
$y = (rand(1,10));
$sum = $x + $y;
if (isset($_POST['submit'])) {
$guess = $_POST['guess'];
$value = $_POST['sum'];
if ($value == $guess) {
echo "nice, you got it right.";
} else {
echo "aw, too bad. <br>";
}
}
echo "<br>What is " . $x . " + " . $y . "? <br>";
?>
<form action="" method="post">
<input name="guess" type="text" />
<input type="hidden" name="sum" value="<?=$sum?>" />
<input name="submit" type="submit" />
</form>
You should store your $x and $y in a hidden input.
Calculate the sum by using the post value instead of generating new value.
I want a calculator with my PHP code that adds values with one after one with submit button.like when I input a number then submit it and show it on the page then and input other, it should add previous number.and then enter another then submit.like these, numbers are adding with one another after submitting.
<?php
session_start();
?>
<?php
error_reporting(0);
?>
<html>
<title>adding input single values</title>
<body>
<form method="post">
<input type="text" name='number' method="post"/>
<input type="submit" />
</form>
<?php
if(!isset($_POST['number']))
{
}
else
{
$sum += $_POST['number'];
echo ++$sum;
}
?>
</body>
</html>
here is the output
You could use a hidden field instead of storing in the session.
<input type="text" name='number' method="post"/>
<?php
if(!isset($_POST['number'])) {
echo "<input type='hidden' name='prev_number' value=0 />";
} else {
$sum = $_POST['number'] + $_POST['prev_number'];
echo "<input type='hidden' name='prev_number' value=" . $sum . " />";
echo $sum;
}
?>
<input type="submit" />
</form>
<?php
if(!isset($_POST['number'])) {
// ...
}
else {
$_SESSION['number'] = isset($_SESSION['number']) ? $_SESSION['number'] : '';
$_SESSION['number'] += $_POST['number'];
echo $_SESSION['number'];
}
I writing simple game. I randomizes two numbers and then user put your sum value number to input form whose I sent on the same site. Now if user guess sum numbers it he get 10 points, but if he will miss, lost one chance.
I have problem, because if i Refresh site i overiate he points and chance. Any solution?
$_SESSION['points'];
//$_SESSION['chance'];
$X = rand(1, 10);
$Y = rand(1, 10);
echo $X . " " . $Y;
?>
<form name="MyForm" action="" method="POST">
<input type="text" name="value">
<input type="hidden" value="<?= $X ?>" name="number">
<input type="hidden" value="<?= $Y ?>" name="number2">
<input type="submit" value="Generuj" name="Wynik?"/>
</form>
<?php
if (!empty($_POST) && isset($_POST)) {
$user = $_POST['value'];
if ($_POST['number'] * $_POST['number2'] == $user) {
echo ' ok !';
echo $_SESSION['points'] += 10;
} else {
echo 'error';
// echo 'You lost one chance' . $_SESSION['chance']--;
}
}
You can simply use a PHP session OR a PHP Cookie.
Using cookies (if information is not sensible)
<?php
$value = 'something from somewhere';
setcookie("TestCookie", $value);
setcookie("TestCookie", $value, time()+3600); /* expire in 1 hour */
?>
Then you can echo your cookie like this
<?php
echo $_COOKIE['TestCookie'];
?>
If you're using Sessions
<?php
session_start();
$_SESSION['myVar'] = $myValue;
?>
Then you can echo it that way
<?php
echo $_SESSION['myVar'];
?>
NOTE that with the session, you always have to start your session at the beginning of your PHP file.
Basically I'm trying to display a maths equation with 2 random variables between 0,100.
I need to store 2 different variables which would be: amount of questions correct, and total questions answered.
Only by displaying one question at a time and on submit, prompting the user if they want to continue answering questions or to stop if continuing then refreshing the random values. upon stopping displaying the 3 stored variables.
in the format of " " correct and " " total questions answered.
<html>
<head>
<title></title>
<?php
function displayQuestion(){
$firstVal = rand(0,100);
$secondVal = rand(0,100);
$valTotal = $firstVal + $secondVal;
echo $firstVal . "+" . $secondVal . "=";
}
function answersCorrect(){
$answer = 0;
$firstVal = rand(0,100);
$secondVal = rand(0,100);
$valTotal = $firstVal + $secondVal;
do {$valTotal;
$answer ++;
function displayAnswer() {
if ($answer == $valTotal){
$correct ++;
$answer ++;
}
echo "<p>You got {$correct} answers correct out of {$answer}.</p>";
}
}
while ($answer == $valTotal);
$correct = 0;
}
?>
<script>
function query(){
prompt("More questions (y/n)?");
if (prompt != y || Y){
<?php
echo "answersCorrect();";
?>
} else {
function reloadPage(){
location.reload();
}
}
}
</script>
</head>
<body>
<form action="calculate_randMath.php" method="post" id="mathsForm" name="answer">
<p>Question: <?php echo displayQuestion(); ?> </p>
<p>Your answer: <input type="text" name="answer" id="$answer"/></p>
<p><input type="submit" value="answer" name="Submit" onClick="query()" /></p>
</form>
</body>
</html>
I'm doing form in php but I have some problem.
First I will have 3 different form in the same page.
What I want is only 1 form appear and then with the answer a second form will appear and so on.
The answer of the form will be display on the same page.
For now my first form work and after get the answer go to the 2nd form but I want to submit the 2nd form the problem appear.
It delete the answer of my first form and don't do anything (everything start like I am in my first form).
I try to find the problem but can't have idea about how to solve it.
Here is my code:
<form action="<?php echo $_SERVER['PHP_SELF'];?>" method="post">
Q1?
<input type="number" name="nbtemplate" min="1" max="30">
<input type="submit" name="submitbutton1" value="Confirm!">
</form>
<?php
if(!isset($submitbutton1)) {
if (!empty($_POST['nbtemplate']) != "") {
echo "<b>{$_POST['nbtemplate']}</b> !\n";
echo "<br />";
$Nnbtemplate = $_POST['nbtemplate'];
$result = mysql_query("UPDATE tb SET day='$Nnbtemplate'") or die(mysql_error());
?>
<form action='<?php echo $_SERVER['PHP_SELF'];?>' method='post'>
Q2? <br>
<?php
for ($i = 1; $i <= $Nnbtemplate; $i++) { // start loop
echo "Template ";
echo $i;
?>
<input type="number" name="nbtime" min="1" max="96">
<?php
}
echo '<input type="submit" name="submitbutton2" value="Confirm!">';
echo '</form>';
if(isset($submitbutton1) && !isset($submitbutton2)) {
if (!empty($_POST['nbtime']) != "") {
echo "<b>{$_POST['nbtime']}</b> !\n";
echo "<br />";
$nbtime = $_POST['nbtime'];
for ($j = 1; $j <= $nbtime; $j++) {
echo "Time";
echo $j;
?>
Q3:
<input type="time" name="starttime"> To <input type="time" name="endtime">
<?php
}
echo '<input type="submit">';
echo '</form>';
}
}
}
}
?>
That is some gnarly code you got there, brother. This is a really simple task when handled with some javascript. Then you can have a single post to your php. I like using the jQuery framework so here's a couple links I found quickly: this one and this one
Example code in response to comment about building form elements dynamically:
<html>
<head>
<!-- load jquery library -->
<script src="http://code.jquery.com/jquery-1.10.1.min.js"></script>
</head>
<body>
<form action="toyourpage.php">
How Many?:
<input type="text" name="number" id="number">
<div id="add"></div>
</form>
<!-- javascript go -->
<script type="text/javascript">
$(document).ready(function()
{
$('input#number').keyup(function()
{
var num = $(this).val(); // get num
if(!isNaN(num)) // check if number
{
$('div#add').html(''); // empty
for(i = 1; i <= num; i++) // add
{
$('div#add').append('New Field ' + i + ': <input type="text" name="next_' + i + '" id="next' + i + '"><br>');
}
}
else
{
alert('Valid number required');
}
});
});
</script>
</body>
</html>
I did some changes on Your code, and have tested, it works.
You had any mistakes in your {} brackets and if conditions. Also as I commented I added extract($_POST).
<?php
extract ( $_POST );
if (! isset ( $submitbutton1 ) && !isset($submitbutton2)) {
?>
<form action="<?php echo $_SERVER['PHP_SELF'];?>" method="post">
Q1? <input type="number" name="nbtemplate" min="1" max="30"> <input
type="submit" name="submitbutton1" value="Confirm!">
</form>
<?php ;
}
if (isset ( $submitbutton1 )) {
if (! empty ( $_POST ['nbtemplate'] ) != "") {
echo "<b>{$_POST['nbtemplate']}</b> !\n";
echo "<br />";
$Nnbtemplate = $_POST ['nbtemplate'];
$result = mysql_query("UPDATE tb SET day='$Nnbtemplate'") or
die(mysql_error());
?>
<form action='<?php echo $_SERVER['PHP_SELF'];?>' method='post'>
Q2? <br>
<?php
for($i = 1; $i <= $Nnbtemplate; $i ++) { // start loop
echo "Template ";
echo $i;
?>
<input type="number" name="nbtime" min="1" max="96">
<?php
}
echo '<input type="submit" name="submitbutton2" value="Confirm!">';
echo '</form>';
}
}
if ( isset ( $submitbutton2 )) {
if (! empty ( $_POST ['nbtime'] ) != "") {
echo "<b>{$_POST['nbtime']}</b> !\n";
echo "<br />";
$nbtime = $_POST ['nbtime'];
for($j = 1; $j <= $nbtime; $j ++) {
echo "Time";
echo $j;
?>
Q3:
<input type="time" name="starttime"> To <input type="time"
name="endtime">
<?php
}
echo '<input type="submit">';
echo '</form>';
}
}
?>