PHP somo la 67: Project ya CUDE operaton wa utuma OOP na PDO

Database ambayo tunakwend akuitumia ni ileile ya wanafunzi. Ila ongeza table nyingine iite majibu. Table hiyo iwe na column 3 ambazo ni id, jina, alama. Hakikisha column id ni autoincrement..

Project yetu tauwa na mfali 6 ambayo ni 

1. Add.php
2. Delete.php
3. Edit.php
4. index.php
5. Style.css
6. Wanafnzi_class.php.

Kama nilivyo eleza kwene somo lilotanguliwa kuwa tutatumia mfumo wa OOP yaani object oriented programming. Hivyo kama utarejea project yetu ya CRUDE operation kwa kutumia OOP unaweza kuelewa zaidi.

index.php  

Tengeneza faili liite index.php kisha pest code hizo hapo chini:-

<?php

require_once 'wanafunzi_class.php';

?>

<!DOCTYPE html>

<html lang="en">

<head>

   <meta charset="UTF-8">

   <meta name="viewport" content="width=device-width, initial-scale=1.0">

   <link rel="stylesheet" href="style.css">

   <title>Majibu Data</title>

</head>

<body>

<?php

echo '<table border="1" class="center">';

echo '<a href="add.php"><h1>Add data</h1></a>';

echo '<tr><th>ID</th>

<th>Name</th>

<th>Alama</th>

<th>Edit</th>

<th>Delete</th>

</tr>';

$majina = $db->majina_ya_wanafunzi();

foreach ($majina as $jina) {

   $options = $db->majina_ya_wanafunzi();

  //echo $jina[0] . ' ' . $jina[1] . '<br>';

           echo '<tr>';

           echo '<td>' .$jina['id']  . '</td>';

           echo '<td>' . $jina['jina'] . '</td>';

           echo '<td>' . $jina['alama'] . '</td>';

           echo '<td><a href="edit.php?id='.$jina['id'].'">✏</a> </td>';

           echo '<td><a href="delete.php?id='.$jina['id'].'">❌</a> </td>';

           echo '</tr>';

}

echo '</table>';

?>

</body>

</html>

add.php 

Tengeneza faili liite add.php kisha pest code hizo hapo chini:-

<?php

require_once 'wanafunzi_class.php';

if (isset($_POST['submit'])){

// Insert data

   $jina = $_POST['jina'];

   $matokeo = $_POST['alama'];

   $insertResult = $db->insertData($jina, $matokeo);

   if ($insertResult) {

       echo "<h1>Data inserted successfully!</h1>";

       echo '<script>function quiz (){window.location.replace("index.php")}var myTimeout = setTimeout(quiz, 500)</script>';

   } else {

       echo "Error inserting data.";

   }

}

?>

<br><br><br>

<!DOCTYPE html>

<html lang="en">

<head>

   <meta charset="UTF-8">

   <meta name="viewport" content="width=device-width, initial-scale=1.0">

   <link href="style.css" rel="stylesheet">

   <title>Styled Form</title>

</head>

<body>

<form action="" method="post">

   <label for="jina">Jina</label><br>

   <input type="text" name="jina"><br><br>

   <label for="alama">Alama</label><br>

   <input type="number" name="alama"><br><br>

   <input type="submit" name="submit" value="Save">

</form>

</body>

</html>

edit.php 

Tengeneza faili liite edit.php kisha pest code hizo hapo chini:-

<?php

require_once 'wanafunzi_class.php';

// Check if the form for editing is submitted

if (isset($_POST['edit_submit'])) {

   $id_to_edit = $_POST['edit_id'];

   $edited_jina = $_POST['edited_jina'];

   $edited_matokeo = $_POST['edited_alama'];

   // Edit data

   $editResult = $db->editData($id_to_edit, $edited_jina, $edited_matokeo);

   if ($editResult) {

       echo "<h1>Data edited successfully!</h1>";

       echo '<script>function quiz (){window.location.replace("index.php")}var myTimeout = setTimeout(quiz, 500)</script>';

   } else {

       echo "Error editing data.";

   }

}

$majina = $db->to_be_edited($_GET['id']);

foreach ($majina as $jina) {

$options = $db->majina_ya_wanafunzi();

?>

<br><br><br>

<!DOCTYPE html>

<html lang="en">

<head>

   <meta charset="UTF-8">

   <meta name="viewport" content="width=device-width, initial-scale=1.0">

   <title>Styled Form</title>

   <link rel="stylesheet" href="style.css">

</head>

<body>

<form action="" method="post">

   <!-- Fields for editing -->

   <input type="hidden" name="edit_id" id="edit_id" value="<?php echo $jina['id']?>">

   <label for="edited_jina">Edited Jina</label><br>

   <input type="text" name="edited_jina" id="edited_jina" value="<?php echo $jina['jina']?>"><br><br>

   <label for="edited_alama">Edited Alama</label><br>

   <input type="number" name=&qu...