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<?php
try{
    $bdd=new PDO('mysql:host=localhost;dbname=pcg;charset=utf8', 'root','');
    $bdd->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);// afficher les erreurs php
}catch(Exception $e){
    die('Erreur :' . $e->getMessage());
}
if(// Vérifie si les champs existent et ne sont pas vides
    isset($_POST['nom'],
        $_POST['irrecouvrable'],
        $_POST['creancesTTC'],
        $_POST['creancesirrecouvrablesht'],
        $_POST['creancesirrecouvrablestva'],
        $_POST['creancesdouteusesttc'],
        $_POST['creancesdouteusesht'],
        $_POST['provisionsTaux'],
        $_POST['provisionsmontant'],
        $_POST['provisionsanterieures'],
        $_POST['dotations'],
        $_POST['reprises']
    )
    AND !empty($_POST['nom'])
    AND !empty($_POST['irrecouvrable'])
    AND !empty($_POST['creancesTTC'])
    AND !empty($_POST['creancesirrecouvrablesht'])
    AND !empty($_POST['creancesirrecouvrablestva'])
    AND !empty($_POST['creancesdouteusesttc'])
    AND !empty($_POST['creancesdouteusesht'])
    AND !empty($_POST['provisionsTaux'])
    AND !empty($_POST['provisionsmontant'])
    AND !empty($_POST['provisionsanterieures'])
    AND !empty($_POST['dotations'])
    AND !empty($_POST['reprises'])
){
        if(!isset($errors)){
        // insertion dans la BDD
        $clientsdouteux =$bdd->prepare("INSERT INTO clientsdouteux(nom, irrecouvrable, creancesTTC, creancesirrecouvrablesht, creancesirrecouvrablestva, creancesdouteusesttc, creancesdouteusesht, provisionsTaux, provisionsmontant, provisionsanterieures, dotations, reprises) VALUES(?,?,?,?,?,?,?,?,?,?,?,?)");
        $clientsdouteux->execute(array($_POST['nom'], $_POST['irrecouvrable'], $_POST['creancesTTC'], $_POST['creancesirrecouvrablesht'], $_POST['creancesirrecouvrablestva'], $_POST['creancesdouteusesttc'], $_POST['creancesdouteusesht'], $_POST['provisionsTaux'], $_POST['provisionsmontant'], $_POST['provisionsanterieures'], $_POST['dotations'], $_POST['reprises']));
        if($clientsdouteux->rowCount()>0){
            $successMsg = 'Le client douteux a bien été ajouté !';
        }else{
            $errorMsg[]='Suite à un problème dans la base de données, le client douteux n\'a pas pu être ajouté !';
        }
        $clientsdouteux->closeCursor();
    }
    if(!preg_match('#^[a-zA-Z\-\'ÀÁÂÃÄÅàáâãäåÒÓÔÕÖØòóôõöøÈÉÊËèéêëÇçÌÍÎÏìíîïÙÚÛÜùúûüÿÑñ]{50}$#',$_POST['nom'])){
        $errors[] = 'Champ invalide<br>';
    }
    if(!preg_match('#^[0-9]{1,10}([.,][0-9]{1,2})?$#', $_POST['creancesTTC'])){
        $errors[] = "Champ invalide";
    }
    if(!preg_match('#^[0-9]{1,10}([.,][0-9]{1,2})?$#', $_POST['creancesirrecouvrablesht'])){
        $errors[] = "Champ invalide";
    }
    if(!preg_match('#^[0-9]{1,10}([.,][0-9]{1,2})?$#', $_POST['creancesirrecouvrablestva'])){
        $errors[] = "Champ invalide";
    }
    if(!preg_match('#^[0-9]{1,10}([.,][0-9]{1,2})?$#', $_POST['creancesdouteusesttc'])){
        $errors[] = "Champ invalide";
    }
    if(!preg_match('#^[0-9]{1,10}([.,][0-9]{1,2})?$#', $_POST['creancesdouteusesht'])){
        $errors[] = "Champ invalide";
    }
    if(!preg_match('#^[0-9]{1,3}([.,][0-9]{1,2})?$#', $_POST['provisionsTaux'])){
        $errors[] = "Champ invalide";
    }
    if(!preg_match('#^[0-9]{1,3}([.,][0-9]{1,2})?$#', $_POST['provisionsmontant'])){
        $errors[] = "Champ invalide";
    }
    if(!preg_match('#^[0-9]{1,10}([.,][0-9]{1,2})?$#', $_POST['provisionsanterieures'])){
        $errors[] = "Champ invalide";
    }
    if(!preg_match('#^[0-9]{1,3}([.,][0-9]{1,2})?$#', $_POST['dotations'])){
        $errors[] = "Champ invalide";
    }
    if(!preg_match('#^[0-9]{1,10}([.,][0-9]{1,2})?$#', $_POST['reprises'])){
        $errors[] = "Champ invalide";
    }
}
$response = $bdd->query('SELECT * FROM clientsdouteux');
$clientsdouteux = $response->fetchAll();
?>
<!DOCTYPE html>
<html lang="fr">
 
<head>
    <meta charset="utf-8">
    <meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="../css/bootstrap.css">
    <link rel="stylesheet" href="../css/style.css">
    <link rel="stylesheet" href="../css/carousel.css">
    <title>Comptabilité</title>
    <script src="../js/jquery.js"></script>
    <script src="../js/bootstrap.min.js"></script>
    <script type="text/javascript">
        function CalculerOui() {
            document.clientsdouteux.creancesirrecouvrablesht.value = parseFloat(document.clientsdouteux.creancesTTC.value) / 1.2;
            document.clientsdouteux.creancesirrecouvrablestva.value = parseFloat(document.clientsdouteux.creancesirrecouvrablesht.value) * 0.2;
            document.clientsdouteux.creancesdouteusesttc.value = 0;
            document.clientsdouteux.creancesdouteusesht.value = 0;
            document.clientsdouteux.provisionsTaux.value = 0;
            document.clientsdouteux.provisionsmontant.value = parseFloat(document.clientsdouteux.creancesdouteusesht.value) * parsFloat(document.clientsdouteux.provisionsTaux.value) / 100;
            document.clientsdouteux.dotations.value = 0;
            document.clientsdouteux.reprises.value = parseFloat(document.clientsdouteux.provisionsanterieures) - parseFloat(document.clientsdouteux.provisionsmontant.value);
        }
        function CalculerNon() {
 
        }
    </script>
</head>
<body>
    <div id="clientsdouteux">
        <div class="container">
            <div class="row">
                <div class="col-sm-12">
                    <h1 style="font-size:25px;text-align:center;color:black;">Tableau d'ajustement des provisions des clients douteux</h1>
                    <p>Remplir uniquement le <strong>nom du client</strong>, si il est <strong>irrécouvrable (par OUI ou NON)</strong>, le montant de la <strong>créance TTC</strong>, le <strong>taux</strong> et <strong>Provisions antérieures</strong>. Ces 3 derniers sont au format 0.00</p>
                    <form name="clientsdouteux" method="POST" action="clientsdouteux.php">
                        <label>Nom du client :<input name="nom" id="nom" type="text"></label>
                        <label>Irrécouvrable? oui ou non :<input name="irrecouvrable" id="irrecouvrable" type="text"></label>
                        <label>Créances TTC :<input name="creancesTTC" id="creancesTTC" type="text"></label><br>
                        <label>Créances irrécouvrables HT :<input name="creancesirrecouvrablesht" id="creancesirrecouvrablesht" type="text"></label>
                        <label>Créances irrécouvrables TVA :<input name="creancesirrecouvrablestva" id="creancesirrecouvrablestva" type="text"></label>
                        <label>Créances douteuses TTC:<input name="creancesdouteusesttc" id="creancesdouteusesttc" type="text"></label><br>
                        <label>Créances douteuses HT:<input name="creancesdouteusesht" id="creancesdouteusesht" type="text"></label>
                        <label>Taux :<input name="provisionsTaux" id="provisionsTaux" type="text"></label>
                        <label>Montant Provisions :<input name="provisionsmontant" id="provisionsmontant" type="text"></label><br>
                        <label>Provisions antérieures :<input name="provisionsanterieures" id="provisionsanterieures" type="text"></label>
                        <label>Dotations :<input name="dotations" id="dotations" type="text"></label>
                        <label>Reprises :<input name="reprises" id="reprises" type="text"></label><br>
                        <label><input type="button" value="Calculer" onclick="CalculerOui();"></label>
                        <label><input type="submit" value="Envoyer"></label>
                    </form><br>
                    <?php
                    if (!empty($clientsdouteux)){
                        $response = $bdd->query('SELECT * FROM clientsdouteux');
                        $clientsdouteux = $response->fetchAll();
                    ?>
                    <table>
                        <tr>
                            <th rowspan="2">Clients</th>
                            <th rowspan="2">Irrécouvrable? Oui ou Non</th>
                            <th rowspan="2">Créances TTC</th>                        
                            <th colspan="2">Créances irrécouvrables</th>
                            <th colspan="2">Créances douteuses</th>
                            <th colspan="2">Provisions</th>
                            <th rowspan="2">Provisions antérieures</th>
                            <th colspan="2">Ajustements</th>
                        </tr>
                        <tr>
                            <th>Hors Taxes</th> <th>TVA</th> 
                            <th>TTC</th> <th>Hors Taxes</th>
                            <th>Taux</th> <th>Montant</th> 
                            <th>Dotation</th> <th>Reprises</th>
                        </tr>
                        <?php
                        foreach($clientsdouteux as $data){
                            if ($data['irrecouvrable'] =='non' && (is_numeric($data['creancesTTC'])) && (is_numeric($data['provisionsTaux']))){
                                echo '<tr><td>'.htmlspecialchars($data['nom']).'</td><td>'.htmlspecialchars($data['irrecouvrable']).'</td><td>'.htmlspecialchars($data['creancesTTC']).'</td><td>'.htmlspecialchars($data['creancesirrecouvrablesht']).'</td><td>'.htmlspecialchars($data['creancesirrecouvrablestva']).'</td><td>'.htmlspecialchars($data['creancesdouteusesttc']).'</td><td>'.htmlspecialchars($data['creancesdouteusesht']).'</td><td>'.htmlspecialchars($data['provisionsTaux']).'</td><td>'.htmlspecialchars($data['provisionsmontant']).'</td><td>'.htmlspecialchars($data['provisionsanterieures']).'</td><td>'.htmlspecialchars($data['dotations']).'</td><td>'.htmlspecialchars($data['reprises']).'</td></tr>';
                            }else{
                                echo '<tr><td>'.htmlspecialchars($data['nom']).'</td><td>'.htmlspecialchars($data['irrecouvrable']).'</td><td>'.htmlspecialchars($data['creancesTTC']).'</td><td>'.htmlspecialchars($data['creancesirrecouvrablesht']).'</td><td>'.htmlspecialchars($data['creancesirrecouvrablestva']).'</td><td>'.htmlspecialchars($data['creancesdouteusesttc']).'</td><td>'.htmlspecialchars($data['creancesdouteusesht']).'</td><td>'.htmlspecialchars($data['provisionsTaux']).'</td><td>'.htmlspecialchars($data['provisionsmontant']).'</td><td>'.htmlspecialchars($data['provisionsanterieures']).'</td><td>'.htmlspecialchars($data['dotations']).'</td><td>'.htmlspecialchars($data['reprises']).'</td></tr>';
                            }
                        }
                        ?>
                    </table>
                    <?php
                    }
                    ?>
                </div>
            </div>
        </div>
    </div>
    <script type="application/javascript" src="../js/jquery-3.3.1.min.js"></script>
    <script src="../js/script.js"></script>
</body>
 
</html>

CSS :

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#presentation img{
	width : 100%;
}
#presentation #ZoneTexte{
	text-align: justify;
}
 
#clientsdouteux table{
	position:absolute;
    left:50%;
    transform: translateX(-50%);
    text-align: center;
    border-style: double;
    border-bottom: outset;
}
#clientsdouteux tr, th{
    border:1px solid black;
    background:white;
}
#clientsdouteux input{
	width: 250px;
	position:relative;
    left:35%;
    transform: translateX(-50%);
}
#clientsdouteux label{
    width: 250px;
	position:relative;
    left:35%;
    transform: translateX(-50%);
}
#clientsdouteux p{
    text-align: center;
    border: 1px solid black;
}
#bilan table{
	position:absolute;
    text-align: center;
    border-style: double;
    border-bottom: outset;
    width: auto;
}
#bilan tbody{
    font-size: 12px;
    text-align: left;
    padding-left: 10px;
}
#bilan tr, th{
    border:1px solid black;
    background:white;
}
#bilan td{
    border-left: 1px solid black;
}
#bilan td input{
    width:150px;
    text-align: right;
}
#bilan td, th{
    width:150px;
}
#bilan #title{
    text-align: left;    
}
#bilan #total{
    font-weight: bold;
}
#cr table{
    position:absolute;
    text-align: center;
    border-style: double;
    border-bottom: outset;
    width: auto;
}
#cr tbody{
    font-size: 12px;
    text-align: left;
    padding-left: 10px;
}
#cr tr, th{
    border:1px solid black;
    background:white;
}
#cr td input{
    width:150px;
    text-align: right;
}
#cr td, th{
    width:150px;
}
#cr #total{
    font-weight: bold;
}
#cr td{
    border-left: 1px solid black;
}
 
#sig table{
    position:absolute;
    text-align: center;
    border-style: double;
    border-bottom: outset;
    width: 80%;
}
#sig tbody{
    font-size: 12px;
    text-align: left;
    padding-left: 10px;
}
#sig tr, th{
    border:1px solid black;
    background:white;
}
#sig td input{
    width:150px;
    text-align: right;
}
#sig td, th{
    width:150px;
}
#sig #total{
    font-weight: bold;
}
#sig td{
    border-left: 1px solid black;
}
.clearfix {
    clear: both;
}

Une partie de ma table

Code :

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--
-- Structure de la table `clientsdouteux`
--
 
CREATE TABLE `clientsdouteux` (
  `id` int(11) NOT NULL,
  `nom` text NOT NULL,
  `irrecouvrable` text NOT NULL,
  `creancesTTC` text NOT NULL,
  `creancesirrecouvrablesht` text NOT NULL,
  `creancesirrecouvrablestva` text NOT NULL,
  `creancesdouteusesttc` text NOT NULL,
  `creancesdouteusesht` text NOT NULL,
  `provisionsTaux` text NOT NULL,
  `provisionsmontant` text NOT NULL,
  `provisionsanterieures` text NOT NULL,
  `dotations` text NOT NULL,
  `reprises` text NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
 
--
-- Déchargement des données de la table `clientsdouteux`
--
 
INSERT INTO `clientsdouteux` (`id`, `nom`, `irrecouvrable`, `creancesTTC`, `creancesirrecouvrablesht`, `creancesirrecouvrablestva`, `creancesdouteusesttc`, `creancesdouteusesht`, `provisionsTaux`, `provisionsmontant`, `provisionsanterieures`, `dotations`, `reprises`) VALUES
(1, 'pierre', 'non', '6167.00', '0.00', '0.00', '0.00', '0.00', '50', '0.00', '0.00', '0.00', '0.00'),
(32, 'ffsdfdsfsd', 'oui', '4654464.00', '0.00', '0.00', '0.00', '0.00', '50', '0.00', '454.00', '0.00', '0.00'),
(33, 'ffsdfdsfsd', 'oui', '4654464.00', '0.00', '0.00', '0.00', '0.00', '50', '0.00', '454.00', '0.00', '0.00'),
(34, 'ffsdfdsfsd', 'oui', '4654464.00', '0.00', '0.00', '0.00', '0.00', '50', '0.00', '454.00', '0.00', '0.00'),
(35, 'ffsdfdsfsd', 'oui', '4654464.00', '0.00', '0.00', '0.00', '0.00', '50', '0.00', '454.00', '0.00', '0.00'),
(36, 'dgfdgsdfgfdgfdg', 'gdfsgf', '99999999.99', '0.00', '0.00', '0.00', '0.00', '52', '0.00', '0.00', '0.00', '0.00'),
(37, 'hgfhg', 'hfhg', '99999999.99', '0.00', '0.00', '0.00', '0.00', '10', '0.00', '154.45', '0.00', '0.00'),
(38, 'gfgd', 'oui', '99999999.99', '0.00', '0.00', '0.00', '0.00', '40', '0.00', '445455.00', '0.00', '0.00'),
(39, 'f', 'non', '1.00', '0.00', '0.00', '0.00', '0.00', '1', '0.00', '1.00', '0.00', '0.00'),
(40, 'fdfdfs', 'non', '99999999.99', '0.00', '0.00', '0.00', '0.00', '15', '0.00', '54025.00', '0.00', '0.00'),
(41, 'fffffffff', 'oui', '45128.50', '0.00', '0.00', '0.00', '0.00', '50', '0.00', '50.00', '0.00', '0.00'),
(42, 'ddddddd', 'oui', '2540.50', '0.00', '0.00', '0.00', '0.00', '50', '0.00', '500.00', '0.00', '0.00'),
(43, 'zzzzzzzzzz', 'oui', '55555555.00', '0.00', '0.00', '0.00', '0.00', '5', '0.00', '50.00', '0.00', '0.00'),
(44, 'pierre', 'oui', '0.45', '0.00', '0.00', '0.00', '0.00', '0', '0.00', '0.03', '0.00', '0.00'),
(45, 'pierre', 'oui', '0.45', '0.00', '0.00', '0.00', '0.00', '0', '0.00', '0.03', '0.00', '0.00'),
(46, 'ffsfs', 'oui', '4645646.45', '0.00', '0.00', '0.00', '0.00', '50', '0.00', '54.50', '0.00', '0.00'),
(47, 'ggggg', 'non', '154.00', '0.00', '0.00', '0.00', '0.00', '10', '0.00', '10.00', '0.00', '0.00'),
(48, 'pierre', 'oui', '158874.50', '0.00', '0.00', '0.00', '0.00', '20', '0.00', '152.20', '0.00', '0.00'),
(49, 'pierre', 'oui', '158874.50', '0.00', '0.00', '0.00', '0.00', '20', '0.00', '152.20', '0.00', '0.00'),
(50, 'pierre', 'oui', '158874.50', '0.00', '0.00', '0.00', '0.00', '20', '0.00', '152.20', '0.00', '0.00'),
(51, 'pierre', 'oui', '158874.50', '0.00', '0.00', '0.00', '0.00', '20', '0.00', '152.20', '0.00', '0.00'),
(52, 'pierre', 'oui', '158874.50', '0.00', '0.00', '0.00', '0.00', '20', '0.00', '152.20', '0.00', '0.00'),
(53, 'pierre', 'oui', '158874.50', '0.00', '0.00', '0.00', '0.00', '20', '0.00', '152.20', '0.00', '0.00'),
(54, 'pierre', 'oui', '158874.50', '0.00', '0.00', '0.00', '0.00', '20', '0.00', '152.20', '0.00', '0.00'),
(55, 'gdgfggff', 'non', '45646546.00', '0.00', '0.00', '0.00', '0.00', '40', '0.00', '455.00', '0.00', '0.00'),
(56, 'hgfhf', 'oui', '99999999.99', '0.00', '0.00', '0.00', '0.00', '10', '0.00', '152.00', '0.00', '0.00'),
(57, 'clao', 'non', '456464.55', '0.00', '0.00', '0.00', '0.00', '50', '0.00', '450.00', '0.00', '0.00'),
(58, 'fsdfdsqfdsfqfd', 'fdsfsddsq', '0.00', '0.00', '0.00', '0.00', '0.00', '0', '0.00', '0.00', '0.00', '0.00'),
(59, 'pierre', 'non', '125.50', '0.00', '0.00', '0.00', '0.00', '50', '0.00', '10.00', '0.00', '0.00'),
(60, 'fdsfdsfd', 'oui', '6167.00', '0.00', '0.00', '0.00', '0.00', '50', '0.00', '450.00', '0.00', '0.00'),
(61, 'fdfsdfsdfsfdsffsd', 'non', '6577411.00', '0.00', '0.00', '0.00', '0.00', '10', '0.00', '450.00', '0.00', '0.00'),
(62, 'fffffffffffffffffff', 'oui', '99999999.99', '0.00', '0.00', '0.00', '0.00', '50', '0.00', '15555.00', '0.00', '0.00'),
(63, 'caude', 'non', '154684.25', '0.00', '0.00', '0.00', '0.00', '10', '0.00', '15.25', '0.00', '0.00'),
(64, 'sssssss', 'non', '12548.14', '0.00', '0.00', '0.00', '0.00', '50', '0.00', '50.00', '0.00', '0.00'),
(65, 'vvvvvvvvvvvvvvv', 'non', '1554.25', '0.00', '0.00', '0.00', '0.00', '50', '0.00', '0.00', '0.00', '0.00'),
(66, 'vvvvvvvvvvvvvvv', 'non', '1554.25', '0.00', '0.00', '0.00', '0.00', '50', '0.00', '0.00', '0.00', '0.00'),
(67, 'vvvvvvvvvvvvvvv', 'non', '1554.25', '0.00', '0.00', '0.00', '0.00', '50', '0.00', '0.00', '0.00', '0.00'),
(68, 'vvvvvvvvvvvvvvv', 'non', '1554.25', '0.00', '0.00', '0.00', '0.00', '50', '0.00', '0.00', '0.00', '0.00'),
(69, 'vvvvvvvvvvvvvvv', 'non', '1554.25', '0.00', '0.00', '0.00', '0.00', '50', '0.00', '0.00', '0.00', '0.00'),
(70, 'vvvvvvvvvvvvvvv', 'non', '1554.25', '0.00', '0.00', '0.00', '0.00', '50', '0.00', '0.00', '0.00', '0.00'),
(71, 'pierre', 'oui', '57557.00', '0.00', '0.00', '0.00', '0.00', '20', '0.00', '100.00', '0.00', '0.00');
 
-- --------------------------------------------------------

Pouvez-vous vérifier si mon code fonctionne correctement ?

Merci d'avance

[Celira]

Pouvez-vous vérifier si mon code fonctionne correctement ?

Ben non, pour ça, il faut le lancer sur un serveur PHP, avec une base installée et initialisée, et tout le reste des fichiers à côté

En revanche, je peux lire le code vite fait et te faire un aperçu de ce qui n'est pas propre/bien codé.
Si tu utilises !empty($var), tu n'as pas besoin d'utiliser d'abord isset($var), c'est inclus dedans. Attention, empty considère la valeur "0" comme vide. Si 0 peut être une valeur correctement renseignée pour un champ, il ne faut pas utiliser !empty dessus.

Je te conseille de faire toutes les vérifications de champs (tes preg_match...) avant de faire l'insertion, sinon tu vas insérer des données pourries.