código básico php

phpLoginBase/SecaoViewall.php

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+<!-- 
+Sites de exemplo 
+
+https://phpgurukul.com/how-to-create-a-shopping-cart-in-php/
+
+https://codeshack.io/shopping-cart-system-php-mysql/
+
+ -->
+
+<?php
+include 'connect.php';
+
+if(isset($_SESSION['id']) == false)
+{
+    include 'logout.php';
+}
+
+
+if(isset($_POST['sub'])){
+
+    $product_id = (int)$_POST['idProduto'];
+    $quantity = (int)$_POST['quantity'];
+    $nomeProduto = $_POST['nomeProduto'];
+
+
+
+
+
+    // Product exists in database, now we can create/update the session variable for the cart
+    if (isset($_SESSION['cart']) && is_array($_SESSION['cart'])) {
+        if (array_key_exists($product_id, $_SESSION['cart'])) {
+            // Product exists in cart so just update the quanity
+            $_SESSION['cart'][$product_id] = array('quantity'=> $_SESSION['cart'][$product_id]['quantity']+$quantity,'nomeProduto'=>$nomeProduto);
+        } else {
+            // Product is not in cart so add it
+            $_SESSION['cart'][$product_id] = array('quantity'=>$quantity,'nomeProduto'=>$nomeProduto);
+        }
+    } else {
+        // There are no products in cart, this will add the first product to cart
+        $_SESSION['cart'] = array($product_id => array('quantity'=>$quantity,'nomeProduto'=>$nomeProduto));
+    }
+
+
+
+}
+// else if(isset($_POST['clear'])){
+//     unset($_SESSION['counter']);
+// }
+
+
+
+?>
+
+<table border='1'>
+    <tr>
+        <th>
+            Produto
+        </th>
+        <th>
+            Preço
+        </th>
+    </tr>
+
+<?php
+$sq="select * from produto";
+$qu=mysqli_query($con,$sq);
+while($produto=  mysqli_fetch_assoc($qu)){
+    ?>
+    <tr>
+        <td>
+            <?php echo $produto['nomeProduto']?>
+        </td>
+        <td>
+            <?php echo $produto['precoProduto']?>
+        </td>
+        <td>
+            <form method="POST" enctype="multipart/form-data">
+                <input type="number" name="quantity" value="1" min="1" placeholder="Quantity" required>
+                <input type="hidden" name="idProduto" value="<?=$produto['idProduto']?>">
+                <input type="hidden" name="nomeProduto" value="<?=$produto['nomeProduto']?>">
+                <input type="submit" name="sub" value="Adicionar">
+            </form>
+        </td>
+    </tr>
+    <?php
+}
+?>
+
+<!-- ---------------- -->
+
+<?php foreach($_SESSION['cart'] as $key => $value):?>
+    <ul>
+        <li><?php echo $key." has the value ". $value['nomeProduto'] . " Quantity ". $value['quantity'] ?></li>
+    </ul>
+<?php endforeach; ?>
+
+
+
+<a href="home.php">Home Page </a> <br />
+<a href="secaoFinishShoppingCar.php">Concluir compra </a>  <br /> <br />

phpLoginBase/connect.php

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+<?php session_start();
+
+$con=  mysqli_connect("localhost","root","","test")
+?>

phpLoginBase/delete.php

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+<?php
+include 'connect.php';
+
+$sq="delete from pessoa where id='$_SESSION[id]'";
+mysqli_query($con,$sq);
+
+include 'logout.php';
+
+?>

phpLoginBase/edit.php

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+<?php
+include'connect.php';
+if(isset($_POST['sub'])){
+    $t=$_POST['text'];
+    $u=$_POST['user'];
+    $p=$_POST['pass'];
+    $c=$_POST['city'];
+    $g=$_POST['gen'];
+    if($_FILES['f1']['name']){
+    move_uploaded_file($_FILES['f1']['tmp_name'], "image/".$_FILES['f1']['name']);
+    $img="image/".$_FILES['f1']['name'];
+    }
+    else{
+        $img=$_POST['img1'];
+    }
+    $i="update pessoa set name='$t',username='$u',password='$p',city='$c',gender='$g',image='$img' where id='$_SESSION[id]'";
+    mysqli_query($con, $i);
+    header('location:home.php');
+}
+     $s="select*from pessoa where id='$_SESSION[id]'";
+    $qu= mysqli_query($con, $s);
+    $f=mysqli_fetch_assoc($qu);
+    ?> 
+<form method="POST" enctype="multipart/form-data">
+            <table>
+                <tr>
+                    <td>
+                        Name
+                        <input type="text" name="text" value="<?php echo $f['name']?>">
+                    </td>
+                </tr>
+                <tr>
+                    <td>
+                        Username
+                        <input type="text" name="user" value="<?php echo $f['username']?>">
+                    </td>
+                </tr>
+                <tr>
+                    <td>
+                        password
+                        <input type="password" name="pass" value="<?php echo $f['password']?>">
+                    </td>
+                </tr>
+                <tr>
+                    <td>
+                        city
+                        <select name="city">
+                            <option value="">-select-</option>
+                            <option value="knp"<?php if($f['city']=='knp'){ echo "selected='selected'";}?>>kanpur</option>
+                            <option value="lko"<?php if($f['city']=='lko'){ echo "selected='selected'";}?>>lucknow</option>
+                    </td>
+                </tr>
+                <tr>
+                    <td>
+                        Gender
+                        <?php if($f['gender']=='male'){
+                            ?>
+                          <input type="radio"name="gen" id="gen" value="male" checked>
+                        <?php
+                        } else {
+?>
+                        <input type="radio"name="gen" id="gen" value="male">
+                        <?php } ?>male
+                       <?php if($f['gender']=='female'){
+                            ?>
+                          <input type="radio"name="gen" id="gen" value="female" checked>
+                        <?php
+                        } else {
+?>
+                        <input type="radio"name="gen" id="gen" value="female">
+                        <?php } ?>female
+                    </td>
+                </tr>
+                <tr>
+                    <td>
+                        Image
+                        <img src="<?php echo $f['image']?>" width="100px" height="100px">
+                        <input type="file" name="f1">
+                        <input type="hidden" name="img1" value="<?php echo $f['image']?>">
+                    </td>
+                </tr>
+                <tr>
+                    <td>
+                        <input type="submit" value="submit" name="sub">
+
+                    </td>
+                </tr>
+            </table>
+</form>

phpLoginBase/home.php

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+<?php
+    include 'connect.php';
+
+    if(isset($_SESSION['id']) == false)
+    {
+        include 'logout.php';
+    }
+
+
+    $s="select*from pessoa where id='$_SESSION[id]'";
+    $qu= mysqli_query($con, $s);
+    $f=mysqli_fetch_assoc($qu);
+    ?>
+<html>
+    <head>
+
+    </head>
+    <body>
+    <table>
+        <tr>
+            <td>
+                Name
+            </td>
+            <td>
+                <?php echo $f['name'];?>
+            </td>
+        </tr>
+        <tr>
+        <td> Username</td>
+
+        <td>
+
+    <?php
+    echo $f['username'];?>
+            </td></tr>
+    <tr><td> Password</td>
+        <td>
+    <?php
+    echo $f['password']."<br>";?>
+        </td></tr>
+    <tr><td> City </td>   <td>           
+    <?php
+    echo $f['city']."<br>";?></td></tr>
+    <tr>
+        <td>Gender</td>
+        <td><?php
+    echo $f['gender']."<br>";?></td>
+    </tr>
+    <tr><td> Image</td><td>
+
+    <img src="<?php
+    echo $f['image'];?>" width="100px" height="100px">
+    </td>
+
+    </tr>
+    </table>
+<a href="edit.php">Edit </a> <br />
+<a href="delete.php">Delete </a> <br />
+<a href="viewall.php">View All People </a> <br />
+<a href="logout.php">Logout </a> <br />
+    </body>
+</html>

phpLoginBase/login.php

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+<?php
+include'connect.php';
+if(isset($_POST['sub'])){
+    $u=$_POST['user'];
+    $p=$_POST['pass'];
+    $s= "select * from pessoa where username='$u' and password= '$p'";   
+   $qu= mysqli_query($con, $s);
+   if(mysqli_num_rows($qu)>0){
+      $f= mysqli_fetch_assoc($qu);
+      $_SESSION['id']=$f['id'];
+      header ('location:home.php');
+   }
+   else{
+       echo 'username or password does not exist';
+   }
+}else if (isset($_POST['reg'])){
+    header ('location:reg.php');
+}
+?>
+<html>
+
+    <head>
+        <meta charset="UTF-8">
+        <title></title>
+    </head>
+    <body>
+        <form method="POST" enctype="multipart/form-data">
+            <table>
+
+                <tr>
+                    <td>
+                        Username
+                        <input type="text" name="user">
+                    </td>
+                </tr>
+                <tr>
+                    <td>
+                        password
+                        <input type="password" name="pass">
+                    </td>
+                </tr>
+                <tr>
+                    <td>
+                        <input type="submit" name="sub" value="submit">
+                    </td>
+                </tr>
+
+                <tr>
+                    <td>
+                        <input type="submit" name="reg" value="cadastro">
+
+                    </td>
+                </tr>
+
+            </table>
+    </body>
+</html>

phpLoginBase/logout.php

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+<?php 
+
+session_start();
+
+unset($_SESSION['id']);
+header('location:login.php');
+
+?>

phpLoginBase/pessoa_pedido_produto.sql

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+create table pessoa_pedido_produto(
+    idPedido int PRIMARY key AUTO_INCREMENT,
+    fk_idPessoa int,
+    fk_idProduto int,
+    quantityProduto int not null,
+    dataPedido datetime DEFAULT now(),
+    FOREIGN key(fk_idPessoa) REFERENCES pessoa(id),
+    FOREIGN key(fk_idProduto) REFERENCES produto(idProduto)
+    );
+
+
+
+
+create table pessoa_pedido_produto(
+    id int PRIMARY key AUTO_INCREMENT,
+    fk_idPedido int not null,
+    fk_idPessoa int not null,
+    fk_idProduto int not null,
+    quantityProduto int not null,
+    dataPedido datetime DEFAULT now(),
+    FOREIGN key(fk_idPedido) REFERENCES pedido(idPedido),
+    FOREIGN key(fk_idPessoa) REFERENCES pessoa(id),
+    FOREIGN key(fk_idProduto) REFERENCES produto(idProduto)
+  );