Untitled

<?php

include'db/connexiondb.php';

if(isset($_POST['valider']) AND $_POST['valider']) {
    $nom = $_POST['nom'];
    $prenom = $_POST['prenom'];
    $email = $_POST['email'];
    $mdp = sha1($_POST['mdp']);
    $id_destinataire = $bdd->prepare('SELECT email FROM images WHERE email = ?');
    $id_destinataire->execute(array($email));
    $dest_exist = $id_destinataire->rowCount();
    if($dest_exist == 0) {
        if(filter_var($email, FILTER_VALIDATE_EMAIL)) {
            $req = $bdd->prepare("INSERT INTO images (nom, prenom, email, mdp) VALUES (?,?,?,?)");
            $req->execute(array($nom, $prenom, $email, $mdp));
        } else {
            echo "Extension Adresse Mail mauvaise";
        }
    } else {
        echo "E-Mail déja Utilisé";
    }
}

if(isset($_POST['co']) AND $_POST['co']) {
	$requser = $bdd->prepare("SELECT * FROM images WHERE id = ?");
   	$requser->execute(array($_SESSION['id']));
   	$user = $requser->fetch();
	$emailco = $_POST['emailco'];
    $mdpco = sha1($_POST['mdpco']);
    $requser = $bdd->prepare("SELECT * FROM images WHERE email = ? AND mdp = ?");
	$requser->execute(array($emailco, $mdpco));
	$userexist = $requser->rowCount();
	if($userexist == 1) {
		echo "c bon";
	}
}

?>

<!DOCTYPE html>
<html>
<head>
    <title></title>
</head>
<body>
	<div align="left">
	    <form method="POST">
	        <input type="text" placeholder="Nom" name="nom">
	        <br/>
	        <input type="text" placeholder="Prénom" name="prenom">
	        <br/>
	        <input type="text" placeholder="E-Mail" name="email">
	        <br/>
	        <input type="password" placeholder="Mot De Passe" name="mdp">
	        <br/>
	        <input type="submit" value="Inscription" name="valider">
	    </form>
	</div>
	<div align="center">
		<form method="POST">
			<input type="email" name="emailco">
			<br/>
			<input type="password" name="mdpco">
			<br/>
			<input type="submit" value="Connexion" name="co">
		</form>
	</div>
</body>
</html>