phpcrud/update.php at main · letecode/phpcrud · GitHub

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<?php
// Inclure le fichier
require_once "config.php";

// Definir les variables
$nom = $ecole = $age = "";
$name_err = $ecole_err = $age_err = "";

// verifier la valeur id dans le post pour la mise à jour
if(isset($_POST["id"]) && !empty($_POST["id"])){
    // recuperation du champ chaché
    $id = $_POST["id"];

    // Validate name
    $input_name = trim($_POST["nom"]);
    if(empty($input_name)){
        $name_err = "Veillez entrez un nom.";
    } elseif(!filter_var($input_name, FILTER_VALIDATE_REGEXP, array("options"=>array("regexp"=>"/^[a-zA-Z\s]+$/")))){
        $name_err = "Veillez entrez a valid name.";
    } else{
        $nom = $input_name;
    }

    // Validate ecole
    $input_ecole = trim($_POST["ecole"]);
    if(empty($input_ecole)){
        $ecole_err = "Veillez entrez une ecole.";
    } else{
        $ecole = $input_ecole;
    }

    // Validate age
    $input_age = trim($_POST["age"]);
    if(empty($input_age)){
        $age_err = "Veillez entrez l'age.";
    } elseif(!ctype_digit($input_age)){
        $age_err = "Veillez entrez une valeur positive.";
    } else{
        $age = $input_age;
    }

    // verifier les erreurs avant modification
    if(empty($name_err) && empty($ecole_err) && empty($age_err)){
        // Prepare an update statement
        $sql = "UPDATE students SET nom=?, ecole=?, age=? WHERE id=?";

        if($stmt = mysqli_prepare($link, $sql)){
            // Bind les variables
            mysqli_stmt_bind_param($stmt, "sssi", $param_nom, $param_ecole, $param_age, $param_id);

            // Set parameters
            $param_nom = $nom;
            $param_ecole = $ecole;
            $param_age = $age;
            $param_id = $id;

            // executer
            if(mysqli_stmt_execute($stmt)){
                // enregistremnt modifié, retourne
                header("location: index.php");
                exit();
            } else{
                echo "Oops! une erreur est survenue.";
            }
        }

        // Close statement
        mysqli_stmt_close($stmt);
    }

    // Close connection
    mysqli_close($link);
} else{
    // si il existe un paramettre id
    if(isset($_GET["id"]) && !empty(trim($_GET["id"]))){
        // recupere URL parameter
        $id =  trim($_GET["id"]);

        // Prepare la requete
        $sql = "SELECT * FROM students WHERE id = ?";

        if($stmt = mysqli_prepare($link, $sql)){
            // Bind les variables
            mysqli_stmt_bind_param($stmt, "i", $param_id);

            // Set parameters
            $param_id = $id;

            // Attempt to execute the prepared statement
            if(mysqli_stmt_execute($stmt)){
                $result = mysqli_stmt_get_result($stmt);

                if(mysqli_num_rows($result) == 1){
                    /* recupere l'enregistremnt */
                    $row = mysqli_fetch_array($result, MYSQLI_ASSOC);

                    // recupere les champs
                    $nom = $row["nom"];
                    $ecole = $row["ecole"];
                    $age = $row["age"];
                } else{
                    // pas de id parametter valid, retourne erreur
                    header("location: error.php");
                    exit();
                }

            } else{
                echo "Oops! une erreur est survenue.";
            }
        }

        // Close statement
        mysqli_stmt_close($stmt);

        // Close connection
        mysqli_close($link);
    }  else{
        // pas de id parametter valid, retourne erreur
        header("location: error.php");
        exit();
    }
}
?>

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Modifier l'enregistremnt</title>
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3" crossorigin="anonymous">
    <style>
        .wrapper{
            width: 700px;
            margin: 0 auto;
        }
    </style>
</head>
<body>
    <div class="wrapper">
        <div class="container-fluid">
            <div class="row">
                <div class="col-md-12">
                    <h2 class="mt-5">Mise à jour de l'enregistremnt</h2>
                    <p>Modifier les champs et enregistrer</p>
                    <form action="<?php echo htmlspecialchars(basename($_SERVER['REQUEST_URI'])); ?>" method="post">
                        <div class="form-group">
                            <label>Nom</label>
                            <input type="text" name="nom" class="form-control <?php echo (!empty($name_err)) ? 'is-invalid' : ''; ?>" value="<?php echo $nom; ?>">
                            <span class="invalid-feedback"><?php echo $name_err;?></span>
                        </div>
                        <div class="form-group">
                            <label>Ecole</label>
                            <textarea name="ecole" class="form-control <?php echo (!empty($ecole_err)) ? 'is-invalid' : ''; ?>"><?php echo $ecole; ?></textarea>
                            <span class="invalid-feedback"><?php echo $ecole_err;?></span>
                        </div>
                        <div class="form-group">
                            <label>Age</label>
                            <input type="text" name="age" class="form-control <?php echo (!empty($age_err)) ? 'is-invalid' : ''; ?>" value="<?php echo $age; ?>">
                            <span class="invalid-feedback"><?php echo $age_err;?></span>
                        </div>
                        <input type="hidden" name="id" value="<?php echo $id; ?>"/>
                        <input type="submit" class="btn btn-primary" value="Enregistrer">
                        <a href="index.php" class="btn btn-secondary ml-2">Annuler</a>
                    </form>
                </div>
            </div>
        </div>
    </div>
</body>
</html>