Having two notices of undefined index - php

Question

I have this code below to insert in my Admins table the data that I store when when I fills the fields.
The insert is working fine, but Im having two notices and I´m trying to solve this but Im not finding a good method.
Somebody there can give a little help?
the two notices Im having:
-> Undefined index: date in $insertAdmin->bindValue(':avatar', $f['avatar']);
-> Undefined index: date in $insertAdmin->bindValue(':date_register', $f['date']);
My code:
if(isset($_POST['sendForm']))
{
$f['name'] = $_POST['name'];
$f['email'] = $_POST['email'];
//$f['avatar'] = $_POST['avatar'];
$f['date'] = $_POST['date_register'];
if(in_array('',$f))
{
echo 'Please, fill all fields.';
}
else
{
if(!empty($_FILES['avatar']['tmp_name']))
{
$image = $_FILES['avatar'];
$tmp = $imagem['tmp_name'];
$folder = '../uploads/avatars/';
$ext = substr($image['name'],-3);
$name = md5(time()).'.'.$ext;
$f['avatar'] = $name;
uploadImage($tmp, $name, '200', $folder);
}
$insertAdmin = $pdo->prepare("INSERT INTO admin (name, email, avatar, date_register) VALUES (:name, :email, :avatar, :date_register)");
$insertAdmin->bindValue(':name', $f['name']);
$insertAdmin->bindValue(':email', $f['email']);
$insertAdmin->bindValue(':avatar', $f['avatar']);
$insertAdmin->bindValue(':date_register', $f['date']);
}
}
My form:
<form name="form" action="" method="post" enctype="multipart/form-data">
<label class="line">
<span class="data">Name:</span>
<input type="text" name="name" value="<?php if(isset($f['name'])) echo $f['name'] ; ?>" />
</label>
<label class="line">
<span class="data">Email:</span>
<input type="text" name="email" value="<?php if(isset($f['email'])) echo $f['email'] ; ?>" />
</label>
<label class="line">
<span class="data">Avatar:</span>
<input type="file" class="fileinput" name="avatar" size="60" />
</label>
<label class="line">
<span class="data">Date of register:</span>
<input type="text" name="date_register" id="date" value="<?php if(isset($f['date'])) echo $f['date']; else echo date('d/m/Y H:i:s');?>" />
</label>
<input type="submit" value="Register" name="sendForm"/>
</form>

Answer 1

I see no valid reason to have the $f variable, it just makes it confusing.
I would personaly use the POST directly
if(isset($_POST['sendForm']
isset($_POST['name'] &&
isset($_POST['email'] &&
isset($_POST['avatar'] &&
isset($_POST['date'] &&){
//Insert
}else{
//please fill out everything
}
then execute like this
$insertAdmin = $pdo->prepare("INSERT INTO admin (name, email, avatar, date_register) VALUES (:name, :email, :avatar, :date_register)");
$insertAdmin->bindValue(':name', $_POST['name']);
$insertAdmin->bindValue(':email', $_POST['email']);
$insertAdmin->bindValue(':avatar', $_POST['avatar']);
$insertAdmin->bindValue(':date_register', $_POST['date']);
//do not forget to execute
$insertAdmin->execute();

Answer 2

You have a spelling error:
$f['date'] = $_POST['data_register'];
Needs to be:
$f['date'] = $_POST['date_register'];
//----------------------^
Which explains why $f['date'] is undefined.

Answer 3

use below an check again.
if(isset($_POST['sendForm']))
{
$f['name'] = $_POST['name'];
$f['email'] = $_POST['email'];
$f['avatar'] = $_POST['avatar'];
$f['date'] = $_POST['date_register'];
if(in_array('',$f))
{
echo 'Please, fill all fields.';
}
else
{
if(!empty($_FILES['avatar']['tmp_name']))
{
$image = $_FILES['avatar'];
$tmp = $imagem['tmp_name'];
$folder = '../uploads/avatars/';
$ext = substr($image['name'],-3);
$name = md5(time()).'.'.$ext;
$f['avatar'] = $name;
uploadImage($tmp, $name, '200', $folder);
}
$insertAdmin = $pdo->prepare("INSERT INTO admin (name, email, avatar, date_register) VALUES (:name, :email, :avatar, :date_register)");
$insertAdmin->bindValue(':name', $f['name']);
$insertAdmin->bindValue(':email', $f['email']);
$insertAdmin->bindValue(':avatar', $f['avatar']);
$insertAdmin->bindValue(':date_register', $f['date']);
}
}