Upload une image

$tmp_name = !empty($_FILES["g"]['tmp_name']) ? $_FILES["g"]['tmp_name']: NULL;
if (! move_uploaded_file($tmp_name, 'uploads/'.$g)) {
  echo " Error :" . $tmp_name ;
}

$g=isset($_FILES["g"]["tmp_name"])?$_FILES["g"]["tmp_name"]:"";if(!move_uploaded_file($g,'uploads/'.$g)){
    echo "error:".$g;
}
$requete= "INSERT INTO emploie(nom_entr, poste, ville, type_contrat,nbre,img_emploi,date_limite,cmt_post,email_emploi,site,whatsapp,sms,appel) VALUES ('".$a."','".$b."','".$c."','".$z."','".$d."','".$g."','".$e."','".$f."'
,'".$h."','".$i."','".$j."','".$k."','".$l."')";
$params=array($a,$b,$c,$z,$d,$g,$e,$f,$h,$i,$j,$k,$l);
$resultat=$bd->prepare($requete);
$resultat->execute($params);
header( 'location:index.php?reg_err=offre_publier_avec_succes');
?>

<form action="envoie.php" method="POST" enctype="multipart/form-data">
      <div class="container my-4"  style=" text-align: center; ">
        <div class="modal fade" id="modalSubscriptionForm" tabindex="-1" role="dialog" aria-labelledby="myModalLabel"
                aria-hidden="true">
          <div class="modal-dialog" role="document">
              <div class="modal-content" style="overflow-y:scroll;">
                <div class="modal-header text-center">
                  <h4 class="modal-title w-100 font-weight-bold">crée l'annonce</h4>
                  <button type="button" class="close" data-dismiss="modal" aria-label="Close">
                  <span aria-hidden="true">×</span>
                </button>
              </div>
              <div class="modal-body mx-3">
                <div class="md-form mb-5">
                  <label for="text">nom de l'entreprise</label>
                  <input name="a" style=" border: 2px solid skyblue;" type="text" id="form3" class="form-control validate" placeholder="entrer le nom de votre entreprise" required >
                </div>

                <div class="md-form mb-5">
                  <label for="text">poste</label>
                  <input style=" border: 2px solid skyblue;" name="b" type="text" id="form3" class="form-control validate" placeholder="nom du poste"required >
                </div>

                <div class="md-form mb-5">
                  <label for="text">ville</label>
                  <input name="c" style=" border: 2px solid skyblue;" type="text" id="form3" class="form-control validate" placeholder="entrer la ville de l'offre'"required >
                </div>

                <div class="md-form mb-5">
                   <select name="z" style=" border: 2px solid skyblue; height: 50px;" id="form3" class="form-control validate"required >
                    <option > type de contrat</option>
                    <option > CDI</option>
                    <option > CDD</option>
                    <option > stage accademique</option>
                    <option> stage proffesionnel</option>
                    <option > stage pre-emploi</option>
                  </select>
                </div>

                <div class="md-form mb-5">
                  <label for="text">nombre de place</label>
                  <input name="d" style=" border: 2px solid skyblue;" type="number" id="form3" class="form-control validate" placeholder=" le nombre de place disponible"required >
                </div>
                <div class="md-form mb-5">
                  <label for="text">date limite</label>
                
                  <input name="e" style=" border: 2px solid skyblue;" type="date" id="form3" class="form-control validate" placeholder="date limite pour postuler"required >
                </div>

                <div class="md-form mb-5">
                  <label for="text">comment postulerr</label>
                  <!-- <input type="text" id="form3" class="form-control validate" placeholder=" decrivez les conditions et comment postulez "> -->
                <textarea name="f"  required  placeholder=" decrivez les conditions pour postuler et comment postulez " style="  width: 400px;height: 150px; border: 2px solid skyblue;"></textarea>
                </div>

                <div class="md-form mb-5">
                  <label for="text">image illustatif</label>
                  <input name="g" value="100000" style=" border: 2px solid skyblue;" type="file" id="form3" class="form-control validate"required >
                </div>
                <div class="md-form mb-5">
                  <label for="text">comment vous contacter</label><br><br>
                  <label for="text">email</label>
                  <input name="h" style=" border: 2px solid skyblue;" type="email" id="form2" class="form-control validate" placeholder="votre adresse email">

                  <label for="text">site internet</label>
                  <input name="i" style=" border: 2px solid skyblue;" type="url" id="form2" class="form-control validate" placeholder="le lien de votre site web">

                  <label for="text"> whatsapp</label>
                  <input name="j" style=" border: 2px solid skyblue;" type="tel" id="form2" class="form-control validate" placeholder=" votre numero whatsapp">

                  <label for="text">sms</label>
                  <input name="k" style=" border: 2px solid skyblue;" type="tel" id="form2" class="form-control validate" placeholder=" votre numero pour sms">

                  <label for="text" >appel</label>
                  <input name="l"  style=" border: 2px solid skyblue;"type="tel" id="form2" class="form-control validate" placeholder=" vottre numero pour appel">
                  
                </div>
            </div>
              <div class="modal-footer d-flex justify-content-center">
                
                <input type="submit" name="submit" value="publiez votre annonce"style=" background-color:rgb(7, 196, 48);  border-radius: 10px;   width: 200px;  height: 50px; "> 
              </div>
          </div>
        </div>
      </div>
      <div class="text-center">
        <a href="" class="btn btn-default btn-rounded mb-4" data-toggle="modal" data-target="#modalSubscriptionForm" style=" background-color: orchid; border:black; color:white; ">publiez votre offre</a>
      </div>

    </div>
</form> 

<?php

//---------------------------------//
// Affichage des erreurs PHP
//---------------------------------//
error_reporting(E_ALL);
ini_set('display_errors', TRUE);
ini_set('display_startup_errors', TRUE);

//---------------------------------//
//connexion à la base avec activation des erreurs PDO
//---------------------------------//
try {
  $bdd = new PDO('mysql:host=localhost;dbname=afrijob', 'root', 'manuella2001');
// Activation des erreurs PDO
  $bdd->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
// mode de fetch par défaut : FETCH_ASSOC / FETCH_OBJ / FETCH_BOTH
  $bdd->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);
} catch (PDOException $e) {
  die('Erreur : ' . $e->getMessage());
}

//---------------------------------//
// FONCTIONS
//---------------------------------//
function getPost($varName, $defaultValue = "") {
  return isset($_POST[$varName]) ? $_POST[$varName] : $defaultValue;
}

function getFiles($fieldFileName) {
  return !empty($_FILES[$fieldFileName]) ? $_FILES[$fieldFileName] : NULL;
}

function moveFile($fieldFileName, $uploadDir = 'upload/') {

  $maxUploadFileSize = 100000;

  $phpFileUploadErrors = array(
      0 => 'There is no error, the file uploaded with success',
      1 => 'The uploaded file exceeds the upload_max_filesize directive in php.ini',
      2 => 'The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form',
      3 => 'The uploaded file was only partially uploaded',
      4 => 'No file was uploaded',
      6 => 'Missing a temporary folder',
      7 => 'Failed to write file to disk.',
      8 => 'A PHP extension stopped the file upload.',
  );

  // récupération propre des variables avant de les utiliser
  $F = getFiles($fieldFileName);
  $fileTmpPath = $F['tmp_name'];
  $fileName = $F['name'];
  $fileSize = $F['size'];
  $fileType = $F['type']; // Si tu veux vérifier le type mime du fichier..


  //on vérifie qu'il n'y a pas d'erreur dans le $_FILES
  $error = !empty($F['error']) ? $phpFileUploadErrors[$F['error']] : NULL;
  if ($error) {
    echo $error;
    return false;
  }


  if (!is_dir($uploadDir)) {
    // si le dossier de destination n'existe pas on le créé !
    mkdir($uploadDir, 0755, true);
  }

  // on vérifie que le répertoire de déstination est accessible en écriture
  if (!is_writable($uploadDir)) {
    echo "Permission denied on " . $uploadDir;
    return false;
  }


// on vérifie la taille du fichier envoyé
  if ($fileSize > $maxUploadFileSize) {
    echo "file Size Error : " . $fileSize;
    return false;
  }

  $dest_path = $uploadDir . $fileName;

//On vérifie que le fichier s'est chargé sur le serveur
  if (!is_uploaded_file($fileTmpPath)) {
    echo "upload file error ";
    return false;
  }

//On déplace le fichier dans son répertoire finale
  if (move_uploaded_file($fileTmpPath, $dest_path)) {
    return $fileName;
  } else {
    echo 'There was some error moving the file to upload directory. Please make sure the upload directory is writable by web server.';
    return false;
  }
}

//---------------------------------//
// Début du script :
//---------------------------------//
//récupération des variables POST et FILES
$a = getPost('a');
$b = getPost('b');
$c = getPost('c');
$d = getPost('d');
$e = getPost('e');
$f = getPost('f');
$h = getPost('h');
$i = getPost('i');
$j = getPost('j');
$k = getPost('k');
$l = getPost('l');
$z = getPost('z');

//on upload le fichier
$g = moveFile('g', 'uploads/');

//Si il s'est bien uploadé...
if ($g) {

  try {
    $requete = "INSERT INTO emploie(nom_entr, poste, ville, type_contrat,nbre,img_emploi,date_limite,cmt_post,email_emploi,site,whatsapp,sms,appel) 
            VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?)";
    $params = array($a, $b, $c, $z, $d, $g, $e, $f, $h, $i, $j, $k, $l);
  } catch (Exception $ex) {
    $resultat = $bdd->prepare($requete);
    $resultat->execute($params);
    header('location:index.php?reg_err=offre_publier_avec_succes');
  }
  
} else {
  echo "<br>Error !";
  exit;
}