Problem:
Create a Song Organizer script that stores songs in a text file. Include functionality that allows users to view the song list and prevents the same song name from being entered twice. Also, include code that sorts the songs by name, deletes duplicate entries, and randomizes the song list with the shuffle() function.
How Come my code isnt adding the song to the txt file or the table?
My Solution - > Broken, song isnt being appending to song list
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0
Strict//EN"
"http://w...content-available-to-author-only...3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://w...content-available-to-author-only...3.org/1999/xhtml">
<head>
<title>PHP Code Blocks</title>
<meta http-equiv="content-type"
content="text/html; charset=iso-8859-1" />
</head>
<body>
<h1>Song Organizer</h1>
<?php
error_reporting(E_ALL);
ini_set('display_errors',1);
if (isset($_GET['action'])) {
if ((file_exists("SongOrganizer/songs.txt"))
&& (filesize("SongOrganizer/songs.txt")
!= 0)) {
$SongArray = file(
"SongOrganizer/songs.txt");
switch ($_GET['action']) {
case 'Remove Duplicates':
$SongArray = array_unique($SongArray);
$SongArray = array_values($SongArray);
break;
case 'Sort Ascending':
sort($SongArray);
break;
case ’Shuffle’:
shuffle($SongArray);
break;
} // End of the switch statement
if (count($SongArray)>0) {
$NewSongs = implode($SongArray);
$SongStore = fopen("SongOrganizer/songs.txt","wb");
if ($SongStore === false)
echo "There was an error updating the song file\n";
else {
fwrite($SongStore, $NewSongs);
fclose($SongStore);
}
}
else
unlink("SongOrganizer/songs.txt");
}
}
if (isset($_POST['submit'])) {
$SongToAdd = stripslashes(
$_POST['SongName']) . "\n";
$ExistingSongs = array();
if (file_exists("SongOrganizer/songs.txt")
&& filesize("SongOrganizer/songs.txt")
> 0) {
$ExistingSongs = file(
"SongOrganizer/songs.txt");
if (isset($_POST['submit'])) {
$SongToAdd = stripslashes($_POST['SongName']) . "\n";
$ExistingSongs = array();
if (file_exists("SongOrganizer/songs.txt")
&& filesize("SongOrganizer/songs.txt")> 0) {
$ExistingSongs = file("SongOrganizer/songs.txt");
}
}
}
}
if ((!file_exists("SongOrganizer/songs.txt"))
|| (filesize("SongOrganizer/songs.txt")
== 0))
echo "<p>There are no songs in the
list.</p>\n";
else {
$SongArray = file(
"SongOrganizer/songs.txt");
echo "<table border=\"1\" width=\"100%\"
style=\"background-color:lightgray\">\n";
foreach ($SongArray as $Song) {
echo "<tr>\n";
echo "<td>" . htmlentities($Song) .
"</td>";
echo "</tr>\n";
}
echo "</table>\n";
}
?>
<p>
<a href="SongOrganizer.php?action=Sort%20Ascending">
Sort Song List</a><br />
<a href="SongOrganizer.php?action=Remove%20Duplicates">
Remove Duplicate Songs</a><br />
<a href="SongOrganizer.php?action=Shuffl e">
Randomize Song list</a><br />
</p>
<form action="SongOrganizer.php" method="post">
<p>Add a New Song</p>
<p>Song Name: <input type="text" name="SongName"
/></p>
<p><input type="submit" name="submit"
value="Add Song to List" />
<input type="reset" name="reset"
value="Reset Song Name" /></p>
</form>
</body>
</html>
I just ran your code locally. You're never sending an action in the form so none of the code is executing.
Inside the form, add something like:
<input type="hidden" name="action" value="literally anything can go here" />
Related
I have mainly two question first describe what I going to do. I've created some animal in the code by saying that octopus will have 8 leggs,9 brain,1 stomach,3 heart similarly for other property.And by a html form using post method I'm taking input from user as showing the animals image if the description matches.
I've also declared the corresponding animals name.I want to also show the name of the animal after matching(by printing $name).
2)Here I'm matching user input for each animal(by using if,elseif elseif) but how can I optimize so that if there is more than 100 animal I don't have to do 100 else if.
Here is my code.
<?php
class animal{
var $name;
var $brain;
var $stomach;
public $heart;
public $leg;
function __construct($aBrain, $aStomach, $aHeart, $aLeg)
{
$this->brain = $aBrain;
$this->stomach = $aStomach;
$this->heart = $aHeart;
$this->setLeg($aLeg);
}
function isBipedal(){
if ($this->leg == 2) {
return "it is a bipedal animal";
}else {
return "it is not a bipedal animal";
}
}
function getLeg(){
return $this->leg;
}
function setLeg($leg){
if ($leg == 8 ||$leg == 4 ||$leg == 2) {
$this->leg= $leg;
}else {
$this->leg= "non-pedal";
}
}
}
$octopus = new animal(9,1,3,8);
$cow = new animal(1,4,1,4);
$human = new animal(1,1,1,2);
$octopus->setLeg(8);
//echo "new leg ".$octopus->leg = 0;
echo "<br>".$octopus->getleg();
echo "<br>".$human->isBipedal(). "<br>";
if(isset($_POST['submit'])) {
if(isset($_POST['brain'])
&& isset($_POST['stomach'])
&& isset($_POST['heart'])
&& isset($_POST['leg']) ){
$myBrain = $_POST['brain'];
$myStomach = $_POST['stomach'];
$myHeart = $_POST['heart'];
$myLeg = $_POST['leg'];
// echo "brain = ". $myBrain. "<br>";
// echo "stomach = ". $myStomach. "<br>";
// echo "heart = ". $myHeart. "<br>";
// echo "leg = ". $myLeg. "<br>";
if($myBrain==$octopus->brain
&& $myStomach==$octopus->stomach
&& $myHeart==$octopus->heart
&& $myLeg==$octopus->leg
){
?>
<div class="animal-info">
<div><p class="blinking">You are Octopus</p></div>
<img src="media/octopus.jpg" alt="" class="animal-img">
<img src="media/octopus.gif" alt="" class="animal-img">
</div>
<?php
}
elseif($myBrain==$cow->brain
&& $myStomach==$cow->stomach
&& $myHeart==$cow->heart
&& $myLeg==$cow->leg
){
?>
<div class="animal-info">
<div>
<span class="blinking">You are Cow</span>
</div>
<img src="media/cow.jpg" alt="" class="animal-img">
<img src="media/cow.gif" alt="" class="animal-img">
</div>
<?php
}
elseif($myBrain==$human->brain
&& $myStomach==$human->stomach
&& $myHeart==$human->heart
&& $myLeg==$human->leg
){
?>
<div class="animal-info">
<div>
<span class="blinking">You are Human</span>
</div>
<img src="media/human.jpg" alt="" class="animal-img">
<img src="media/human.gif" alt="" class="animal-img">
</div>
<?php
}else{
echo "you don't match with anything at all";
}
}
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="style.css">
</head>
<body>
<form action="" method="post">
<span>How many brain you have?</span>
<input type="text" name="brain" id="brain">
<br>
<span>How many stomach you have?</span>
<input type="text" name="stomach" id="stomach">
<br>
<span>How many heart you have?</span>
<input type="text" name="heart" id="heart">
<br>
<span>How many leg you have?</span>
<input type="text" name="leg" id="leg">
<br>
<input type="submit" name="submit" value="Let me see">
</form>
</body>
</html>
u should either store them in a DB and make a query, or store them in array and search by some linq equivalent in php
Could You try with a Switch case?
<?php
if ($i == 0) {
echo "i equals 0";
} elseif ($i == 1) {
echo "i equals 1";
} elseif ($i == 2) {
echo "i equals 2";
}
switch ($i) {
case 0:
echo "i equals 0";
break;
case 1:
echo "i equals 1";
break;
case 2:
echo "i equals 2";
break;
}
?>
I need to modify a block of code and add a counter regarding how many times it took the user to guess the right number.
I was wondering how it would be properly implemented into my code.
This is what I have so far.
<?php
if (!isset($_POST["guess"])) {
$message = "Welcome to the guessing machine!";
$count++; //Declare the variable $count to increment by 1.
$_POST["numtobeguessed"] = rand(0,1000);
} else if ($_POST["guess"] > $_POST["numtobeguessed"]) { //greater than
$message = $_POST["guess"]." is too big! Try a smaller number.";
} else if ($_POST["guess"] < $_POST["numtobeguessed"]) { //less than
$message = $_POST["guess"]." is too small! Try a larger number.";
} else { // must be equivalent
$message = "Well done! You guessed the right number in ".$count." attempt(s)!";
//Include the $count variable to the $message to show the user how many tries to took him.
}
?>
<html>
<head>
<title>A PHP number guessing script</title>
</head>
<body>
<h1><?php echo $message; ?></h1>
<form action="" method="POST">
<p><strong>Type your guess here:</strong>
<input type="text" name="guess"></p>
<input type="hidden" name="numtobeguessed"
value="<?php echo $_POST["numtobeguessed"]; ?>" ></p>
<p><input type="submit" value="Submit your guess"/></p>
</form>
</body>
</html>
You have to use PHP Sessions to keep track of the count.
All you have to do is initialize counter to 0 and have it increment when the user guesses a number
<?php
session_start();
if (!isset($_POST["guess"])) {
$_SESSION["count"] = 0; //Initialize count
$message = "Welcome to the guessing machine!";
$_POST["numtobeguessed"] = rand(0,1000);
echo $_POST["numtobeguessed"];
} else if ($_POST["guess"] > $_POST["numtobeguessed"]) { //greater than
$message = $_POST["guess"]." is too big! Try a smaller number.";
$_SESSION["count"]++; //Declare the variable $count to increment by 1.
} else if ($_POST["guess"] < $_POST["numtobeguessed"]) { //less than
$message = $_POST["guess"]." is too small! Try a larger number.";
$_SESSION["count"]++; //Declare the variable $count to increment by 1.
} else { // must be equivalent
$_SESSION["count"]++;
$message = "Well done! You guessed the right number in ".$_SESSION["count"]." attempt(s)!";
unset($_SESSION["count"]);
//Include the $count variable to the $message to show the user how many tries to took him.
}
?>
<html>
<head>
<title>A PHP number guessing script</title>
</head>
<body>
<h1><?php echo $message; ?></h1>
<form action="" method="POST">
<p><strong>Type your guess here:</strong>
<input type="text" name="guess"></p>
<input type="hidden" name="numtobeguessed"
value="<?php echo $_POST["numtobeguessed"]; ?>" ></p>
<p><input type="submit" value="Submit your guess"/></p>
</form>
</body>
</html>
This should work for you.
$count = isset($_POST['count']) ? $_POST['count'] : 0; //Use post value if defined. If not set to 1.
if (!isset($_POST["guess"])) {
$message = "Welcome to the guessing machine!";
$_POST["numtobeguessed"] = rand(0,1000);
} else if ($_POST["guess"] > $_POST["numtobeguessed"]) { //greater than
$message = $_POST["guess"]." is too big! Try a smaller number.";
} else if ($_POST["guess"] < $_POST["numtobeguessed"]) { //less than
$message = $_POST["guess"]." is too small! Try a larger number.";
} else { // must be equivalent
$message = "Well done! You guessed the right number in ".$count." attempt(s)!";
//Include the $count variable to the $message to show the user how many tries to took him.
}
$count++;
?>
<html>
<head>
<title>A PHP number guessing script</title>
</head>
<body>
<h1><?php echo $message; ?></h1>
<form action="" method="POST">
<p><strong>Type your guess here:</strong>
<input type="text" name="guess"></p>
<input type="hidden" name="numtobeguessed"
value="<?php echo $_POST["numtobeguessed"]; ?>" ></p>
<input type="hidden" name="count"
value="<?php echo $count; ?>" ></p>
<p><input type="submit" value="Submit your guess"/></p>
</form>
</body>
</html>
on 22.6.2021 i wrote a Guess Number in Range [0 .. aMaxIntValue] sample Web Application using PHP. i think the following code may help you. the code is kept in a Single PHP file. it generates #4 HTML pages ...
the 1st initial page is used to collect application parameters (e.g. the Max Int Number to Guess)
the 2nd page is the Main Play Game Page where the user is asked to Guess the Secret Number or to Reset Game. this page shows the previous user guesses and some tips for the user about the guess
the 3rd page is used to notify the user looses game (that is he has no more tries left)
the 4th page is used to notify the user wins the game (that is the Guess was OK)
the Number of Tries left to the User is computed using the values range [0 .. max]
the Secret Number to Guess is a random generated integer number
this is the PHP + HTML code ...
<?php
session_start();
error_reporting (E_PARSE | E_COMPILE_ERROR);
function ResetGame()
{
unset ( $_SESSION['theMaxNumber'] );
}
function InitGame()
{
$_SESSION['theNumberToGuess'] = mt_rand (0, $_SESSION['theMaxNumber']);
$_SESSION['theMaxNumberOfTries'] = floor ( log ($_SESSION['theMaxNumber'], 2) ) + 1;
$_SESSION['theUserTriesCount'] = 0;
$_SESSION['thePrevGuessesString'] = '';
$_SESSION['theUserGuess'] = 0;
}
function ComputeNumberOfTriesLeft()
{
return $_SESSION['theMaxNumberOfTries'] - $_SESSION['theUserTriesCount'];
}
function IsNoMoreTriesLeft()
{
return ComputeNumberOfTriesLeft() <= 0;
}
$aCanPlayGame = false;
$aUserSubmittedGuess = false;
$aIsNoMoreTriesLeft = false;
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
if ( isset ($_REQUEST['playgame']) ) {
$_SESSION['theMaxNumber'] = intval($_REQUEST['theMaxNumber']);
// init game ...
InitGame();
$aCanPlayGame = true;
}
elseif ( isset ($_REQUEST['submituserguess']) ) {
$aCanPlayGame = true;
$aUserSubmittedGuess = true;
$_SESSION['theUserGuess'] = intval($_REQUEST['theUserGuess']);
}
elseif ( isset ($_REQUEST['resetgame']) ) {
ResetGame();
}
else {
ResetGame();
}
}
else {
ResetGame();
}
// check a play
$aUserShouldTryLower = false;
$aUserShouldTryHigher = false;
$aUserWins = false;
$aUserLooses = false;
if ($aCanPlayGame) {
$aIsNoMoreTriesLeft = IsNoMoreTriesLeft();
if ( ! $aIsNoMoreTriesLeft ) {
// user have tries left
if ($aUserSubmittedGuess) {
// check user guess ...
$aUserGuess = intval($_SESSION['theUserGuess']);
if ( $aUserGuess > $_SESSION['theNumberToGuess'] ) {
$aUserShouldTryLower = true;
}
elseif ( $aUserGuess < $_SESSION['theNumberToGuess'] ) {
$aUserShouldTryHigher = true;
}
else {
$aUserWins = true;
// also reset game
ResetGame();
}
// add the current guess to the prev guesses string
$_SESSION['thePrevGuessesString'] .= $_SESSION['theUserGuess'] . ' ';
// increase the user tries count
++ $_SESSION['theUserTriesCount'];
// check tries count
if ( ! $aUserWins ) {
$aIsNoMoreTriesLeft = IsNoMoreTriesLeft();
if ($aIsNoMoreTriesLeft) {
// this was the last try
// no more tries left
$aUserLooses = true;
// also reset game
ResetGame();
}
}
}
}
else {
// no more tries left
$aUserLooses = true;
// also reset game
ResetGame();
}
}
?>
<?php if ($aUserLooses): ?>
<!DOCTYPE html>
<html>
<head>
<title>Guess a Number</title>
</head>
<body>
<p>Sorry, you loose the game</p>
<p>the Number to Guess was <?php echo $_SESSION['theNumberToGuess']; ?></p>
<form method="post">
<input type="submit" name="resetgame" value="reset game">
</form>
</body>
</html>
<?php elseif ($aUserWins): ?>
<!DOCTYPE html>
<html>
<head>
<title>Guess a Number</title>
</head>
<body>
<p>Congrats, you Win the Game</p>
<p>the Number to Guess was <?php echo $_SESSION['theNumberToGuess']; ?></p>
<form method="post">
<input type="submit" name="resetgame" value="reset game">
</form>
</body>
</html>
<?php elseif ($aCanPlayGame): ?>
<!DOCTYPE html>
<html>
<head>
<title>Guess a Number</title>
</head>
<body>
<p>the Max Number is <?php echo $_SESSION['theMaxNumber']; ?></p>
<p>Guess a Number in the Range [ 0 .. <?php echo ($_SESSION['theMaxNumber']); ?> ]</p>
<p>[DEBUG] the secret number to guess is <?php echo $_SESSION['theNumberToGuess']; ?></p>
<p>you have <?php echo ComputeNumberOfTriesLeft(); ?> tries left</p>
<form method="post">
<label for="theUserGuess">Enter your Guess: </label>
<input type="text" id="theUserGuess" name="theUserGuess">
<input type="submit" name="submituserguess" value="Guess">
<input type="submit" name="resetgame" value="reset game">
</form>
<p>Prev Guesses: <?php echo $_SESSION['thePrevGuessesString']; ?> </p>
<p>
<?php
if ($aUserShouldTryLower) {
echo 'you should try a lower < guess';
}
elseif ($aUserShouldTryHigher) {
echo 'you should try a higher > guess';
}
else {
echo 'no guess';
}
?>
</p>
</body>
</html>
<?php else: ?>
<!DOCTYPE html>
<html>
<head>
<title>Guess a Number</title>
</head>
<body>
<p>Guess a Number from (0) to ... </p>
<form method="post">
<input id="theMaxNumber" name="theMaxNumber">
<input type="submit" name="playgame" value="play game">
</form>
</body>
</html>
<?php endif; ?>
that's all folks ...
In two pages I have there problem. The first problem is before I submitted I get this alert:
(Notice: Undefined index: submit in C:\xampp\htdocs\art-legend\12\admin\add.php on line 15)
and the line 15 in this page is
(if ($_POST['submit'] && !empty($_FILES)){)
The second problem is before I put any image they put that I have an image on the top but I still don't put any image and I have this picture
And the third error is when I upload an image I can't see it and I have a screen like the last screen .
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=windows-1256" />
<title>Untitled Document</title>
<title>Untitled Document</title>
</head>
<body>
<?
if ($_POST['submit'] && !empty($_FILES)){
$formok = TRUE;
$title = $_POST['title'];
$thread = $_POST['elm1'];
$date = date("d/m/y h;i:s");
$path = $_FILES['upload']['tmp_name'];
$name = $_FILES['upload']['name'];
$size = $_FILES['upload']['size'];
$type = $_FILES['upload']['type'];
$error = $_FILES['upload']['error'];
if (!is_uploaded_file($path)){
$formok = FALSE;
echo "there is no file uploaded try again";
}
if (!in_array($type,array('image/png','image/jpg','image/jpeg'))){
$formok = FALSE ;
echo "the file is not image try again ";
}
if (filesize($path)>800000){
$formok = FALSE ;
echo "the file is bigger ";
}
if ($formok){
if ($connect = mysqli_connect('localhost','root','adminpass','flip')){
$content = file_get_contents($path);
$safetitle = mysqli_real_escape_string($connect,$title);
$safethread = mysqli_real_escape_string($connect,$thread);
$safeimage = mysqli_real_escape_string($connect,$thread);
$sqltitle ="insert into title(title) values ('$safetitle')";
$sqlthread = "insert into threads (topic,date) values ('$safethread','$date')";
$sqlimge ="insert into images (name,size,type,content) values ('$name','$size','$type','$safeimage')";
$querytitle = mysqli_query($connect,$sqltitle);
$querythread = mysqli_query($connect,$sqlthread);
$queryimage = mysqli_query($connect,$sqlimge);
if ($querytitle && $querythread && $queryimage){
$imageid = mysqli_insert_id($connect);
}
mysqli_close($connect);
}
else {
echo "There is error in database connect";
}
echo "insert done all ";
}
}
?>
<img src="image.php?id=<?=$imageid; ?>" />
<hr />
<form action="<?php echo $_SERVER["PHP_SELF"];?>" method="post" enctype="multipart/form-data">
<p>
title :
<input type="text" name="title" />
</p>
<div>
<textarea id="elm1" name="elm1" rows="15" cols="80" style="width: 80%">
</textarea>
</div>
<input type="hidden" name="MAX_FILE_SIZE" value="800000" />
<p>
<input type="file" name="upload" />
</p>
<p>
<input type="submit" name="submit" value="process" />
</p>
</form>
</body>
</html>
--
<?
$imageid = $_GET['id'];
if ( mysqli_connect('localhost','root','adminpass','flip')){
$escape = mysqli_real_escape_string($connect,$content);
$sql = "select type,content from images where id =$imageid";
$query = mysqli_query($connect, $sql);
$fetch = mysqli_fetch_array($query,MYSQLI_ASSOC);
mysqli_free_result($query);
mysqli_close($connect);
}
else {
echo"ther is no connection 2";
}
if (!empty($fetch)){
header("Content-type:{$fetch['type']}");
echo $fetch['content'];
}
?>
Use isset
isset — Determine if a variable is set and is not NULL
<?
if (isset($_POST['submit']) && !empty($_FILES)){
I have a small function that grabs the input values from my html page and puts them through a php function that will display them in a list. My goal is that if a field is left blank, the PHP script doesn't echo anything so that it would skip that instance entirely. It's probably better to show you than just talk of course:
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta content="text/html; charset=utf-8" http-equiv="Content-Type" />
<title>Untitled 1</title>
</head>
<body>
<form method="POST" action="test3.php" name="form">
<p>Please enter your name:</p>
<input type="text" name="1"></input>
<br />
<input type="text" name="2"></input>
<br />
<input type="text" name="3"></input>
<br />
<input type="text" name="4"></input>
<br />
<input type="text" name="5"></input>
<br />
<input type="submit" value="Submit" name="subButton" tabindex="50"></input>
</form>
</body>
</html>
PHP
function callNames(){
$body;
for($name = 1; $name <= 6; $name++){
if($name <= 5){
echo "Your name is " . $_POST[$name] . ".<br />";
}
elseif($name =? ){
?;
}
else {
echo "Your out of names!";
}
};
}
callNames();
I left the elseif function blank, as I thought that is where my solution would go. In other words, if you put in a name for everything but field 3, it would only echo "Your name is " 4 times but not leave an extra break where it would have been. Would I not use an elseif to solve this?
First off, as Fred -ii pointed out in the comments, in PHP field names cannot start with a number, but if they could here is how you would do it:
function callNames(){
$body;
for($name = 1; $name < 6; $name++){
if(isset($_POST[$name])){
echo "Your name is " . $_POST[$name] . ".<br />";
}
}
echo 'You are out of names!';
}
However, this assumes that the post variables go up sequentially until there are no more names.
If you explain what this is for, maybe someone can provide a better way to tackle the problem all together.
P.s the body variable seems unused?
Have you tried adding a condition that looks for $_POST[$name] length > 0 or that looks for $_POST[$name] != '';
function callNames(){
$body;
for($name = 1; $name <= 6; $name++){
if($name <= 5){
if ( $_POST[$name] != '' ) {
echo "Your name is " . $_POST[$name] . ".<br />";
}
}
elseif($name =? ){
?;
}
else {
echo "Your out of names!";
}
};
}
callNames();
You can even merge the two conditions in one with &&
function callNames(){
if ($_POST['name'] != ""){
echo "Your name is " . $_POST[$name] . ".<br />";
}
elseif($_POST['name'] == "?"){
echo "?";
}
else {
echo "Your out of names!";
}
}
This question already has answers here:
php date validation
(13 answers)
Closed 9 years ago.
I need to validate a Date from an input box.
The regular expression is fine but that is about it.
First where in the scope does it go, and second can you help make this work?
When it validates I dont want it to echo anything and when it doesnt I would like it to
tell the user that they must enter it in mm/dd/yyyy format. If you can do this in an alert box that would be even better! Thank you fellow developers!!! The COMPLETE code follows the tag. Youll see my preg_match is commented out. Thank you fellow developers!!!
$input = '<input value="Date" type="text" name="date">';
if (preg_match('/^(|(0[1-9])|(1[0-2]))\/((0… $input)) {
echo "";
} else {
echo "You must Re-enter date in mm/dd/yyyy format.";
}
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<embed src="Songs/nature.mp3" width=10 height=10 autostart=true repeat=true loop=true></embed>
<title>Post Song</title>
<meta http-equiv="content-type" content="text/html; charset=iso-8859-1" />
</head>
<body>
<h1>Post New Song</h1>
<hr />
<br />
<body background="Songs/back.jpg">
<form action= "Postsong.php" method="POST">
<span style="font-weight:bold">Song:</span>
<input value="" type="text" name="song" />
<span style="font-weight:bold">Artist Name:</span>
<input value="" type="text" name="name" />
<span style="font-weight:bold">Date:</span>
<input value="" type="text" name="date" /><br />
<br />
<br />
<input type="submit" name="submit"
value="Post Song" />
</form>
<hr />
<p>
View Songs
</p>
<?php
/*
$input = '<input value="Date" type="text" name="date">';
if (preg_match('/^(|(0[1-9])|(1[0-2]))\/((0[1-9])|(1\d)|(2\d)|(3[0-1]))\/((\d{4}))$/', $input)) {
echo "";
} else {
echo "You must Re-enter date in mm/dd/yyyy format.";
}
*/
if (isset($_POST['submit'])) {
$Song = stripslashes($_POST['song']);
$Name = stripslashes($_POST['name']);
$Date = stripslashes($_POST['date']);
$Song= str_replace("~", "-", $Song);
$Name = str_replace("~", "-", $Name);
$Date = str_replace("~", "-", $Date);
$ExistingSubjects = array();
if (file_exists(
"Songs/songs.txt") &&
filesize("Songs/songs.txt")
> 0) {
$SongArray = file(
"Songs/songs.txt");
$count = count($SongArray);
for ($i = 0; $i < $count; ++$i) {
$CurrSong = explode("~",
$SongArray[$i]);
$ExistingSubjects[] = $CurrSong[0];
}
}
if (in_array($Song, $ExistingSubjects)) {
echo "<p>The song you entered
already exists!<br />\n";
echo "Please enter a new song and
try again.<br />\n"; // Do I need another if statement saying if empty echo you need to enter something?...
echo "Your song was not saved.</p.";
$Song = "";
}
else {
$SongRecord =
"$Song~$Name~$Date~\n";
$SongFile = fopen(
"Songs/songs.txt",
"ab");
if ($SongFile === FALSE)
echo "There was an error saving your
song!\n";
else {
fwrite($SongFile,
$SongRecord);
fclose($SongFile);
echo "Your song has been
saved.\n";
$Song = "";
$Name = "";
$Date = "";
}
}
}
else {
$Song = "";
$Name = "";
$Date = "";
}
?>
</body>
The following regex matches for mm/dd/yyyy
(0[1-9]|1[0-2])/(0[1-9]|1[0-9]|2[0-9]|3(0|1))/\d{4}
The first part i.e. (0[1-9]|1[0-2]) checks for two digits ranging from 01 to 12.
Next part i.e. (0[1-9]|1[0-9]|2[0-9]|3(0|1)) checks for two digits ranging from 01 to 31.
Next part i.e. \d{4} checks for 4 digits.
/ between the parts checks for / as separator.