I have a dropdown list with 5 elements (Volleyball, Handball, Rugby, Basketball, Autres)
I wish for example to select the element "Rugby" in my form, then confirm.
My problem is when I wish to change my old choice in my form (edit); the element "Rugby" is not the element which has been save previously.
By default I always have the element "VolleyBall".
[![<td>Type de Club:</td><td>
<select name="type_club" style="width:144px">
<option>Volley-Ball</option>
<option>Hand-Ball</option>
<option>Rugby</option>
<option>Basket-Ball</option>
<option>Autres</option>
</select>][1]][1]
[1]: https://i.stack.imgur.com/xQ83B.png
Here is my code.
<?php
// including the database connection file
include_once("config_bd.php");
if(isset($_POST['update']))
{
$pk_club = mysqli_real_escape_string($mysqli, $_POST['pk_club']);
$nom_club = mysqli_real_escape_string($mysqli, $_POST['nom_club']);
$type_club = mysqli_real_escape_string($mysqli, $_POST['type_club']);
// checking empty fields
if(empty($nom_club) || empty($type_club)) {
if(empty($nom_club)) {
echo "<font color='red'>Le nom du club est vide.</font><br/>";
}
if(empty($type_club)) {
echo "<font color='red'>Le type du club est vide.</font><br/>";
}
} else {
//updating the table
$result = mysqli_query($mysqli, "UPDATE clubs SET nom_club='$nom_club',type_club='$type_club' WHERE pk_club=$pk_club");
//redirectig to the display page. In our case, it is index.php
header("Location: vue_club.php");
}
}
//getting id from url
$pk_club = $_GET['pk_club'];
//selecting data associated with this particular id
$result = mysqli_query($mysqli, "SELECT * FROM clubs WHERE pk_club=$pk_club");
while($res = mysqli_fetch_array($result))
{
$nom_club = $res['nom_club'];
$type_club = $res['type_club'];
}
?>
<html>
<head>
</head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Palais des Sports</title>
<link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<link rel="stylesheet" type="text/css" href="style/style1.css">
<body>
<div class="bandeau-bleu">
<h2>Palais des Sports</h2>
<i class="material-icons"></i>
<i class="material-icons"></i>
</div>
<div class="form_encodage">
<h3>Cliquez ici pour afficher les enregistrements</h3>
<br />
<h4> Editer un enregistrement</h4><br />
<form name="form1" method="post" action="edit_club.php">
<table border="0">
<tr>
<td>Nom du Club:</td>
<td><input type="text" name="nom_club" value="<?php echo $nom_club;?>"></td>
</tr>
<tr>
<td>Type de Club:</td><td>
<select name="type_club" style="width:144px">
<option>Volley-Ball</option>
<option>Hand-Ball</option>
<option>Rugby</option>
<option>Basket-Ball</option>
<option>Autres</option>
</select>
</td></tr>
<td><input type="submit" name="update" class="bouton_bleu" value="Update"></td>
<td><input type="hidden" name="pk_club" value=<?php echo $_GET['pk_club'];?>></td>
</tr>
</table>
</form>
</div>
</body>
</html>
You can use selected property with options.
Below is updated code for dropdown you have put thin td.
Try this:
<td>Type de Club:</td><td>
<select name="type_club" style="width:144px">
<option <?php if(isset($type_club) and $type_club=='Volley-Ball'){ echo 'selected'; }?>>Volley-Ball</option>
<option <?php if(isset($type_club) and $type_club=='Hand-Ball'){ echo 'selected'; }?>>Hand-Ball</option>
<option <?php if(isset($type_club) and $type_club=='Rugby'){ echo 'selected'; }?>>Rugby</option>
<option <?php if(isset($type_club) and $type_club=='Basket-Ball'){ echo 'selected'; }?>>Basket-Ball</option>
<option <?php if(isset($type_club) and $type_club=='Autres'){ echo 'selected'; }?>>Autres</option>
</select>
</td>
Complete updated code:
<?php
// including the database connection file
include_once("config_bd.php");
if(isset($_POST['update']))
{
$pk_club = mysqli_real_escape_string($mysqli, $_POST['pk_club']);
$nom_club = mysqli_real_escape_string($mysqli, $_POST['nom_club']);
$type_club = mysqli_real_escape_string($mysqli, $_POST['type_club']);
// checking empty fields
if(empty($nom_club) || empty($type_club)) {
if(empty($nom_club)) {
echo "<font color='red'>Le nom du club est vide.</font><br/>";
}
if(empty($type_club)) {
echo "<font color='red'>Le type du club est vide.</font><br/>";
}
} else {
//updating the table
$result = mysqli_query($mysqli, "UPDATE clubs SET nom_club='$nom_club',type_club='$type_club' WHERE pk_club=$pk_club");
//redirectig to the display page. In our case, it is index.php
header("Location: vue_club.php");
}
}
//getting id from url
$pk_club = $_GET['pk_club'];
//selecting data associated with this particular id
$result = mysqli_query($mysqli, "SELECT * FROM clubs WHERE pk_club=$pk_club");
while($res = mysqli_fetch_array($result))
{
$nom_club = $res['nom_club'];
$type_club = $res['type_club'];
}
?>
<html>
<head>
</head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Palais des Sports</title>
<link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<link rel="stylesheet" type="text/css" href="style/style1.css">
<body>
<div class="bandeau-bleu">
<h2>Palais des Sports</h2>
<i class="material-icons"></i>
<i class="material-icons"></i>
</div>
<div class="form_encodage">
<h3>Cliquez ici pour afficher les enregistrements</h3>
<br />
<h4> Editer un enregistrement</h4><br />
<form name="form1" method="post" action="edit_club.php">
<table border="0">
<tr>
<td>Nom du Club:</td>
<td><input type="text" name="nom_club" value="<?php echo $nom_club;?>"></td>
</tr>
<tr>
<td>Type de Club:</td><td>
<select name="type_club" style="width:144px">
<option <?php if(isset($type_club) and $type_club=='Volley-Ball'){ echo 'selected'; } ?>>Volley-Ball</option>
<option <?php if(isset($type_club) and $type_club=='Hand-Ball'){ echo 'selected'; } ?>>Hand-Ball</option>
<option <?php if(isset($type_club) and $type_club=='Rugby'){ echo 'selected'; } ?>>Rugby</option>
<option <?php if(isset($type_club) and $type_club=='Basket-Ball'){ echo 'selected'; } ?>>Basket-Ball</option>
<option <?php if(isset($type_club) and $type_club=='Autres'){ echo 'selected'; }?>>Autres</option>
</select>
</td></tr>
<td><input type="submit" name="update" class="bouton_bleu" value="Update"></td>
<td><input type="hidden" name="pk_club" value=<?php echo $_GET['pk_club'];?>></td>
</tr>
</table>
</form>
</div>
</body>
</html>
You will need to query your database before loading your select form to get the previous save then build your list
$sqla= "SELECT * FROM `save_table` WHERE `id` = $id ";
$result = $conn->query($sqla);
if ($result->num_rows > 0) {
$save = $row['save'];
$select= ('<td>Type de Club:</td><td>
<select name="type_club" style="width:144px">
<option>');
$select.='$save';
$select.='</option> <option>Volley-Ball</option>
<option>Hand-Ball</option>
<option>Rugby</option>
<option>Basket-Ball</option>
<option>Autres</option>
</select>';
echo $select;
You can also use if statements to remove the second $save variable from the list before you build it so there is no repeat option in the list.
Related
It is for a "recipes personal website", I am stuck with the Search function.
First let me tell you how is the database :
1 table categories : the type of recipe
Link for image
1 table ingredients : all the ingredients used in the recipes
Link for image
1 table recettes : all recipes stored with a column for their categories
Link for image
1 table ingredient_recette : to link all ingredients and quantity that composed a specific recipe
Link for image
Here I would like to make a page where I can search for recipes that contain for example 1 or 2 special ingredients, and in which category I would like to search. Link for search page image
This is the search.php I've done for the moment... (you can see it on codeshare.io)
How can I proceed to search recipes that contain only selected
ingredients ?
<?php
include("cnx.php");
include("functions.php");
// Query pour les catégories
$rq_cat = "SELECT * FROM categories ORDER BY id_cat";
$result_cat = $mysqli->query($rq_cat);
if(isset($_POST["Recherche"]) AND $_POST["Recherche"] == "Go")
{
if($_POST["cat_recette"] == "") // Si aucune catégorie sélectionnée
{
echo "Aucune catégorie ";
$rq_recettes = "SELECT * FROM recettes";
$result_recettes = $mysqli->query($rq_recettes);
}
elseif($_POST["cat_recette"] == "Entrée") // Si catégorie Entrée sélectionnée
{
echo "Catégorie Entrée ";
}
elseif($_POST["cat_recette"] == "Plat") // Si catégorie Plat sélectionnée
{
echo "Catégorie Plat ";
$rq_recettes = "SELECT * FROM recettes WHERE cat_recette='Plat'";
$result_recettes = $mysqli->query($rq_recettes);
}
elseif($_POST["cat_recette"] == "Dessert") // Si catégorie Dessert sélectionnée
{
echo "Catégorie Dessert ";
$rq_recettes = "SELECT * FROM recettes WHERE cat_recette='Dessert'";
$result_recettes = $mysqli->query($rq_recettes);
}
elseif($_POST["cat_recette"] == "Soupe") // Si catégorie Soupe sélectionnée
{
echo "Catégorie Soupe ";
$rq_recettes = "SELECT * FROM recettes WHERE cat_recette='Soupe'";
$result_recettes = $mysqli->query($rq_recettes);
}
elseif($_POST["cat_recette"] == "Autre") // Si catégorie Autre sélectionnée
{
echo "Catégorie Autre ";
$rq_recettes = "SELECT * FROM recettes WHERE cat_recette='Autre'";
$result_recettes = $mysqli->query($rq_recettes);
}
}
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<link href="https://fonts.googleapis.com/css?family=Quando&display=swap" rel="stylesheet">
<link rel="stylesheet" href="css/style.css">
<title>cooketal</title>
</head>
<body class="search">
<header>
<?php
include("nav.php");
?>
</header>
<div class="banner">
<h2>Recherche</h2>
</div>
<section class="all-recipes add left">
<div class="frigo-ing col-3">
<table>
<div class="contenu">
<form action="" method="POST">
<h1>Les ingrédients que je possède</h1>
<?php for ($i=1; $i < 10 ; $i++) { ?>
<table>
<th><span><?php echo $i ?></span></th>
<td>
<select name="ing<?php echo $i; ?>">
<option value="" selected>- - - -</option>
<?php
$rq_ingredients = "SELECT * FROM ingredients ORDER BY nom_ingredient ASC";
$result_ingredients = $mysqli->query($rq_ingredients);
while($row_ingredients = $result_ingredients->fetch_object()){ ?>
<option value="<?php echo $row_ingredients->id_ingredient; ?>"><?php echo $row_ingredients->nom_ingredient; ?></option>
<?php } ?>
</select>
</td>
</table>
<?php } ?>
<h1>Une catégorie en particulier ?</h1>
<select id="cat-recette" name="cat_recette">
<option value="">- - - -</option>
<?php
$rq_cat = "SELECT * FROM categories ORDER BY id_cat";
$result_cat = $mysqli->query($rq_cat);
while( $row_cat = $result_cat->fetch_object()){ ?>
<option value="<?php echo $row_cat->cat_recette; ?>" <?php if( isset( $_POST["cat_recette"]) AND $_POST["cat_recette"] == $row_cat->cat_recette){ echo "selected";} ?>><?php echo $row_cat->cat_recette; ?></option>
<?php } ?>
</select><br>
<input type="submit" name="Recherche" value="Go">
</form>
</div>
</table>
</div>
<div class="frigo-ing col-3">
<h1>Résultats</h1>
</div>
</section>
If suggest you to use ajax and make select in html and set the ajax call when the select's value has changed.Like this.
SELECT:
<select name='select' class='ingredient'>
<option value="" selected>- - - -</option>
<?php
$rq_ingredients = "SELECT * FROM ingredients ORDER BY nom_ingredient ASC";
$result_ingredients = $mysqli->query($rq_ingredients);
while($row_ingredients = $result_ingredients->fetch_object()){ ?>
<option value="<?php echo $row_ingredients->id_ingredient; ?>"><?php echo $row_ingredients->nom_ingredient; ?></option>
<?php } ?>
</select>
AJAX CALL:
$('.ingredient').change(function() {
var selected = $('.ingredient').val();
var data = "";
$.ajax({
type:"GET",
url : "search.php?ingredient='+selected+'',
data : "",
async: false,
success : function(response) {
//Here you get recipe name in response as return .. I hope it work.
},
error: function() {
alert('Error occured');
}
});
Make another page called search.php
Here you get recipe having ingredient
<?php
$id = $_GET["ingredient"];
$sql = "SELECT * FROM recettes WHERE cat_recette='$id'";
$result = $conn->query($statement);
if ($result->num_rows > 0) {
// output data of each row
while($row = $result->fetch_assoc()) {
echo "".$row["nom_recette"]."";
}
}
?>
I have been working on a form that allows entering a menu item for a cafe establishment, alongside its ingredients (arrays of data). Unfortunately, a problem came up as it only executes 1 query even though 2 or more ingredients were entered in the form (dynamic, jQuery).
Here is the PHP code:
<?php
include("session.php");
if (isset($_POST['submit'])) {
$productname = $_POST['product_name'];
$categoryID = $_POST['categoryID'];
$price = $_POST['srp'];
// ingredients
$ingredients = $_POST['ingredients'];
$qty = $_POST['qty'];
$measure = $_POST['measure'];
if (!empty($productname) && !empty($categoryID) && !empty($price) && !empty($ingredients) && !empty($qty) && !empty($measure)) {
for ($i=0; $i < count($ingredients); $i++) {
if ($ingredients[$i] != "" && $qty[$i] != "" && $measure[$i] != "") {
mysqli_query($db, "insert into individual_ingredients values ('', '$productname', '{$ingredients[$i]}', '{$qty[$i]}', '{$measure[$i]}')");
}
}
mysqli_query($db, "insert into end_products values ('', '$productname', '$price', '', '$categoryID')");
mysqli_query($db, "insert into audit_trail values ('', now(), '{$_SESSION['login_user']}', 'New end product added')");
header("location: end_products.php");
} else {
echo '<font color="red">'."Incomplete data entered".'</font>';
}
}
?>
And here is the HTML form and JQuery:
<html>
<head>
<title><?php echo $login_session; ?> | New End Product Record</title>
<link rel="stylesheet" href="css/main.css" type="text/css">
<link href="https://fonts.googleapis.com/css?family=Roboto" rel="stylesheet">
<!-- jQuery library -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<!-- Bootstrap js library -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
//add more fields group
$(".addMore").click(function(){
var fieldHTML = '<div class="form-group fieldGroup">'+$(".fieldGroupCopy").html()+'</div>';
$('body').find('.fieldGroup:last').after(fieldHTML);
});
//remove fields group
$("body").on("click",".remove",function(){
$(this).parents(".fieldGroup").remove();
});
});
</script>
</head>
<body>
HTML form:
<table style="margin: 5% -1% 0 -10%; font-size: 0.9em">
<tr>
<form action="new_end_product_record.php" method="post">
<td>Name</td>
<td><input type="text" name="product_name"></td>
<td>Raw Material/s Used</td>
<td>
<div class="fieldGroup">
<select name="ingredients[]">
<option value="">Ingredient</option>
<?php
$items_sql = "select name from raw_materials where status='Active'";
$get_items = mysqli_query($db, $items_sql);
while ($option = mysqli_fetch_assoc($get_items)) { ?>
<option value="<?php echo $option['name']; ?>"><?php echo $option['name']; ?></option>
<?php } ?>
</select>
<input type="text" name="qty[]" placeholder="Quantity" style="width:60px">
<select name="measure[]">
<option value="">Measure Unit</option>
<?php
$get_units = "select * from raw_material_measures";
$units = mysqli_query($db, $get_units);
while ($unit = mysqli_fetch_assoc($units)) {
?>
<option value="<?php echo $unit['full_name']; ?>"><?php echo $unit['full_name']; ?></option>
<?php } ?>
</select>
ADD
<br /><br />
</div>
<!-- second set -->
<div class="fieldGroupCopy" style="display: none;">
<div class="input-group">
<select name="ingredients[]">
<option value="">Ingredient</option>
<?php
$items_sql = "select name from raw_materials where status='Active'";
$get_items = mysqli_query($db, $items_sql);
while ($option = mysqli_fetch_assoc($get_items)) { ?>
<option value="<?php echo $option['name']; ?>"><?php echo $option['name']; ?></option>
<?php } ?>
</select>
<input type="text" name="qty[]" placeholder="Quantity" style="width:60px">
<select name="measure[]">
<option value="">Measure Unit</option>
<?php
$get_units = "select * from raw_material_measures";
$units = mysqli_query($db, $get_units);
while ($unit = mysqli_fetch_assoc($units)) {
?>
<option value="<?php echo $unit['full_name']; ?>"><?php echo $unit['full_name']; ?></option>
<?php } ?>
</select>
REMOVE
<br /><br />
</div>
</div>
</td>
</tr>
<tr>
<td>SRP</td>
<td><input type="text" name="srp"></td>
</tr>
<tr>
<td>Category</td>
<td>
<select name="categoryID">
<option value="">Select category...</option>
<!--list all categories in the database-->
<?php
$cat_query = "select category_ID, name from end_products_categories";
$get_cats = mysqli_query($db, $cat_query);
while ($option = mysqli_fetch_assoc($get_cats)) { ?>
<option value="<?php echo $option['category_ID']; ?>"><?php echo $option['name']?></option>
<?php } ?>
</select>
</td>
<!-- <td>Expiration</td>
<td><input type="date"></input></td> -->
</tr>
</table><br>
<input type="submit" class="button" name="submit" value="ADD RECORD">
<input type="reset" value="ERASE ALL">
</div></form>
</div>
</body>
</html>
Is there a problem with the loop or with the HTML form that prevents the second to the last set of values from being inserted? Any help would be appreciated.
I am struggling to get my PHP unit converter to work.
I am trying to get multiple converters going but cant seem to get it working.
It'd be great if someone could show me where I'm going wrong and help me get it going. :)
<?php
if($_POST){
$fahrenheit = $_POST['fahrenheit'];
$celsius = ($fahrenheit - 32)*5/9;
}
if($_POST){
$celsius = $_POST['celcius'];
$fahrenheit = ($celcius - 32)*5/9;
}
?>
<form action="" method="post">
Fahrenheit: <input type="text" name="fahrenheit" /><br />
<?php
if(isset($celsius)){
echo "Celsius = ".$celsius;
}
?>
</form>
<?php
function fahrenheit_to_celsius($given_value)
{
$celsius=5/9*($given_value-32);
return $celsius ;
}
function celsius_to_fahrenheit($given_value)
{
$fahrenheit=$given_value*9/5+32;
return $fahrenheit ;
}
function inches_to_centimeter($given_value)
{
$centimeter=$given_value/2.54;
return $centimeter ;
}
function centimeter_to_inches($given_value)
{
$inches=$given_value*2.54
}
?>
<html>
<head>
<title>Temp. Conv.</title>
</head>
<body>
<form action="" method="post">
<table>
<!-- FAHRENHEIGHT & CELCIUS V -->
<tr>
<td>
<select name="first_temp_type_name">
<option value="fahrenheit">Fahrenheit</option>
<option value="celsius">Celsius</option>
</select>
</td>
</tr>
<tr>
<td>
<input type="text" name="given_value">
</td>
</tr>
<tr>
<td>
<select name="second_temp_type_name">
<option value="fahrenheit">Fahrenheit</option>
<option value="celsius">Celsius</option>
</select>
</td>
</tr>
<tr>
<td>
<input type="submit" name="btn" value="Convert">
</td>
</tr>
<!--FAHRENHEIGHT & CELCIUS ^ -->
<!-- CENTEMETERS & INCHES -->
<tr>
<td>
<select name="first_length_type_name">
<option value="centimeter">centimeter</option>
<option value="inches">Inches</option>
</select>
</td>
</tr>
<tr>
<td>
<input type="text" name="given_value">
</td>
</tr>
<tr>
<td>
<select name="second_length_type_name">
<option value="centimeter">centimeter</option>
<option value="inches">Inches</option>
</select>
</td>
</tr>
<tr>
<td>
<input type="text" name="given_value">
</td>
</tr>
<!--CENTEMETERS & INCHES ^-->
<tr>
<td>
<?php
if(isset($_POST['btn']))
{
$first_temp_type_name=$_POST['first_temp_type_name'];
$second_temp_type_name=$_POST['second_temp_type_name'];
$given_value=$_POST['given_value'];
if($first_temp_type_name=='fahrenheit')
{
$celsious=fahrenheit_to_celsius($given_value);
echo "Fahrenheit $given_value = $celsious Celsious";
}
if($first_temp_type_name=='celsius')
{
$fahrenheit=celsius_to_fahrenheit($given_value);
echo "Celsious $given_value = $fahrenheit Fahrenheit";
}
}
if(isset($_POST['btn']))
{
$first_length_type_name=$_POST['first_length_type_name'];
$second_length_type_name=$_POST['second_length_type_name'];
$given_value=$_POST['given_value'];
if($first_length_type_name=='centimeter')
{
$centimeter=centimeter_to_inches($given_value);
echo "Centimeter $given_value = $inches Inches";
}
if($first_length_type_name=='inches')
{
$centimeter=inches_to_centimeter($given_value);
echo "Inches $given_value = $centimeter centimeter";
}
}
?>
</td>
</tr>
</table>
</form>
</body>
</html>
I know there is a lot going on, my apologies.
Any help is greatly appreciated :)
Hi please use the following code.
<?php
ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);
$convertedTemperature = 0;
/* The condition is entered when the request is of POST type. */
if($_SERVER['REQUEST_METHOD'] == 'POST'){
$temperature = $_POST['temperature'];
$fromConvertionUnit = $_POST['fromConvertionUnit'];
$toConvertionUnit = $_POST['toConvertionUnit'];
/* if the temperature conversion are of same unit then no need for conversion */
if($fromConvertionUnit == $toConvertionUnit){
$convertedTemperature = $temperature;
}else if($fromConvertionUnit == 'fahrenheit' && $toConvertionUnit == 'celcius') {
/* formula to convert Fahrenheit to Celcius */
$convertedTemperature = ($temperature - 32) * 0.5556;
}else if($fromConvertionUnit == 'celcius' && $toConvertionUnit == 'fahrenheit') {
/* formula to convert Celcius to Fahrenheit */
$convertedTemperature = ($temperature * 1.8) + 32;
}
}
?>
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Temperature Converter</title>
</head>
<body>
<form action="<?php echo $_SERVER['PHP_SELF'] ?>" method="post">
<div>
<!-- If the temperature value has be submitted and has data then it will prefilled -->
<label for="temperature">Temperature</label> <br/>
<input type="number" name="temperature" id="temperature" value="<?php echo (!empty($temperature)) ? $temperature : '' ?>">
</div>
<div>
<label for="fromConvertionUnit">Select From Convertion Unit</label><br/>
<select name="fromConvertionUnit" id="fromConvertionUnit">
<option value="fahrenheit">Fahrenheit</option>
<option value="celcius">Celcius</option>
</select>
</div>
<div>
<label for="toConvertionUnit">Select To Convertion Unit</label><br/>
<select name="toConvertionUnit" id="toConvertionUnit">
<option value="fahrenheit">Fahrenheit</option>
<option value="celcius">Celcius</option>
</select>
</div>
<!-- Once the page is submitted and conversion is done the respective values will be added in the following section -->
<div>
Converted Temperature <b> <?php echo (!empty($temperature)) ? $temperature : '--' ?></b> Value From <b><?php echo (!empty($fromConvertionUnit)) ? $fromConvertionUnit : '--' ?></b> TO <b><?php echo (!empty($toConvertionUnit)) ? $toConvertionUnit : '--' ?></b> is <b><?php echo (!empty($convertedTemperature)) ? $convertedTemperature : '--' ?><b/>
<label for="converted_value">Converted Value</label><br/>
<input type="number" value="<?php echo (!empty($convertedTemperature)) ? $convertedTemperature : '0' ?>">
</div>
<div>
<input type="submit" value="Convert">
</div>
</form>
</body>
</html>
If you want to make a converter, all you need is one input - and a dropdown between what you wish to convert to. Then use a switch in PHP when the form was submitted to check what function you wish to use.
Your current issue is that you overwrite a lot of values, and that you don't check for the right buttons. This is also over-complicating it.
You can further develop this converter by making sure that the input is an actual number - by using filter_var() with a flag that's suitable for your need. You can either validate it or sanitize it, see FILTER_SANITIZE vs FILTER VALIDATE, whats the difference - and which to use?.
<?php
if (isset($_POST['submit'])) {
switch ($_POST['convert']) {
case "cm-in":
$result = centimeter_to_inches($_POST['value']);
$old_unit = 'cm';
$new_unit = ' inches';
break;
case "in-cm":
$result = inches_to_centimeter($_POST['value']);
$old_unit = ' inches';
$new_unit = 'cm';
break;
case "f-c":
$result = fahrenheit_to_celsius($_POST['value']);
$old_unit = ' Farenheit';
$new_unit = ' Celcius';
break;
case "c-f":
$result = celsius_to_fahrenheit($_POST['value']);
$old_unit = ' Celcius';
$new_unit = ' Farenheit';
break;
}
}
function fahrenheit_to_celsius($given_value) {
return 5/9*($given_value-32);
}
function celsius_to_fahrenheit($given_value) {
return $given_value*9/5+32;
}
function inches_to_centimeter($given_value) {
return $given_value/2.54;
}
function centimeter_to_inches($given_value) {
return $given_value*2.54;
}
?>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Conversions</title>
</head>
<body>
<form method="post">
Convert <input type="text" name="value" /><br />
<select name="convert">
<option value="">--Select one--</option>
<optgroup label="Units of Length">
<option value="cm-in">Centimeter to inches</option>
<option value="in-cm">Inches to centimeter</option>
</optgroup>
<optgroup label="Units of Temperature">
<option value="f-c">Farenheit to Celcius</option>
<option value="c-f">Celcius to Farenheit</option>
</optgroup>
</select>
<input type="submit" name="submit" value="Convert" />
</form>
<?php
if (!empty($result))
echo '<p>'.$_POST['value'].$old_unit.' equals '.$result.$new_unit.'</p>';
?>
</body>
</html>
I have a problem here about how to search an exact value from database. Here i have my codes that are function normally but the problem is, when i search the value for example i search for "T1" and then the result show me for "T1", "T11", "T12", "T13" and some more. I just only the value that match with "T1" only be shown. Here my codes below
<?php
include_once("mysql_connect.php");
$output1 = '';
?>
<?php
if(isset($_POST['select'])) {
$selectq = $_POST['select'];
$query = mysql_query("SELECT * FROM asset_a WHERE Tag_no LIKE '%$selectq%' or
Speciality LIKE '%$selectq%' ") or die("could not search!");
$count = mysql_num_rows($query);
if($count == 0){
$output = 'There was no search results!';
}else{
while($row = mysql_fetch_array($query)) {
$tag = $row['Tag_no'];
$special = $row['Speciality'];
$output1 .= $special;
}
}
}
?>
<!doctype html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<title>Testing</title>
</head>
<body>
<p>
<form name="form1" method="post" action="testq.php" >
<label for="textfield" style="font-family:'Gill Sans', 'Gill Sans MT', 'Myriad Pro',
'DejaVu Sans Condensed', Helvetica, Arial, sans-serif; font-size:20px">
Tag No:</label>
<select name="select" id="select" class="textfields" >
<option value="0">-- Select your tag no --</option>
<?php
$getallAsset_a = mysql_query("SELECT * FROM asset_a ");
while($viewallAsset_a = mysql_fetch_array($getallAsset_a)){
?>
<option id="<?php echo $viewallAsset_a ['Tag_id'];?>"><?php echo
$viewallAsset_a['Tag_no']; ?></option>
<?php } ?>
<input type="image" name="submit" id="submit" src="../Search.png"
formaction="testq.php" >
</p>
</select>
<p>
<label for="textfield">Text Field:</label>
<input type="text" name="special" id="textfield"value="<?php print ("$output1");?>" >
</p>
</form>
</body>
</html>
Hi guys i have made a listbox with data from a mysql database and now i want to give the user the possibility to insert an option that don't exists. Can anyone tell me how to do that? I want to create a form or another thing that allows the user to introduce a value for a new option and then it appears in listbox and forward get the value to save in mysql database.
Best regards.
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="keywords" content="jquery,ui,easy,easyui,web">
<meta name="description" content="easyui help you build your web page easily!">
<link rel="stylesheet" type="text/css" href="jeasyui_src/themes/default/easyui.css">
<link rel="stylesheet" type="text/css" href="jeasyui_src/themes/icon.css">
<link rel="stylesheet" type="text/css" href="jeasyui_src/demo/demo.css">
<script type="text/javascript" src="jeasyui_src/jquery.min.js"></script>
<script type="text/javascript" src="jeasyui_src/jquery.easyui.min.js"></script>
</head>
<body>
<script language='Javascript' type='text/javascript'>
function edit_file()
{
$("#button_file").css("visibility" , "hidden");
$("#file_new").css("visibility" , "visible");
}
</script>
<h3>Coloque aqui a sua revisao tecnica:</h3></br>
<?php
include_once 'acess_db.php';
$query = "select * from faqs_treeview where level=1 order by category_title";
$result = mysql_query($query);
?>
<table border='0'>
<tr>
<td>
<form method="POST" name="form1" id="t1" style="visibility: visible;">
<select name="cat_1" style="visibility: visible;">
<option>Selecione a categoria</option>
<?php
while($row = mysql_fetch_array($result))
{
$id = $row["id_category"];
$name = $row["category_title"];
echo "<option value='$id'>".$name."</option>";
}
?>
</select>
<input type="submit" name="submit1" onclick="open2();">
</form>
<?php
if(isset($_POST["cat_1"]))
{
// echo $_POST["cat_1"];
$id2 = $_POST["cat_1"];
$query1 = "select * from faqs_treeview where high_level=$id2";
$result1 = mysql_query($query1);
$form_visible = "visible";
}
else
{
$form_visible = "hidden";
}
?>
</td>
<td>
<form method="POST" name="myform2" id="t2" style="visibility: <?= $form_visible ?>">
<select name="cat_2" >
<option>Selecione a sub-categoria</option>
<?php
while($row1 = mysql_fetch_array($result1))
{
$id = $row1["id_category"];
$name = $row1["category_title"];
echo "<option value='$id'>".$name."</option>";
}
?>
</select>
<input type="submit" name="submit2" onclick="open3();">
<input type="hidden" name="cat_1" value="<?= $_POST["cat_1"]?>">
</form>
</td>
<?php
//echo $_POST["cat_2"];
if(isset($_POST["cat_2"]) )
{
$id3 = $_POST["cat_2"];
$query2 = "select * from faqs_treeview where high_level=$id3";
$result2 = mysql_query($query2);
$form_visible = "visible";
}
else
{
$form_visible = "hidden";
}
?>
<td>
<form method="POST" name="myform3" id="t3" style="visibility: <?= $form_visible ?>">
<select name="cat_3" >
<option>Selecione a sub-sub-categoria</option>
<?php
while($row2 = mysql_fetch_array($result2))
{
$id = $row2["id_category"];
$name = $row2["category_title"];
echo "<option value='$id'>".$name."</option>";
}
?>
</select>
<input type="submit" name="submit3" onclick="closeall();">
<input type="hidden" name="cat_1" value="<?= $_POST["cat_1"]?>">
<input type="hidden" name="cat_2" value="<?= $_POST["cat_2"]?>">
</form>
</td>
</tr>
</table>
You could use AJAX for it. I see you use jQuery, so a simple get or post-request should do the trick.
Here: jQuery .get you will find some examples on how to do this. After the item has been added to the database you can use jQuery to add it to your select-box.