First Draft

First Draft of the Example Files
2020-12-10 13:21:38 +00:00
parent 77a7b57c4f
commit 0335342e00
1127 changed files with 46959 additions and 56 deletions
@@ -0,0 +1,78 @@
+<?php // sqltest.php
+  require_once 'login.php';
+
+  try
+  {
+    $pdo = new PDO($attr, $user, $pass, $opts);
+  }
+  catch (\PDOException $e)
+  {
+    throw new \PDOException($e->getMessage(), (int)$e->getCode());
+  }
+
+  if (isset($_POST['delete']) && isset($_POST['isbn']))
+  {
+    $isbn   = get_post($pdo, 'isbn');
+    $query  = "DELETE FROM classics WHERE isbn=$isbn";
+    $result = $pdo->query($query);
+  }
+
+  if (isset($_POST['author'])   &&
+      isset($_POST['title'])    &&
+      isset($_POST['category']) &&
+      isset($_POST['year'])     &&
+      isset($_POST['isbn']))
+  {
+    $author   = get_post($pdo, 'author');
+    $title    = get_post($pdo, 'title');
+    $category = get_post($pdo, 'category');
+    $year     = get_post($pdo, 'year');
+    $isbn     = get_post($pdo, 'isbn');
+    
+    $query    = "INSERT INTO classics VALUES" .
+      "($author, $title, $category, $year, $isbn)";
+    $result = $pdo->query($query);
+  }
+
+  echo <<<_END
+  <form action="sqltest.php" method="post"><pre>
+    Author <input type="text" name="author">
+     Title <input type="text" name="title">
+  Category <input type="text" name="category">
+      Year <input type="text" name="year">
+      ISBN <input type="text" name="isbn">
+           <input type="submit" value="ADD RECORD">
+  </pre></form>
+_END;
+
+  $query  = "SELECT * FROM classics";
+  $result = $pdo->query($query);
+
+  while ($row = $result->fetch())
+  {
+    $r0 = htmlspecialchars($row['author']);
+    $r1 = htmlspecialchars($row['title']);
+    $r2 = htmlspecialchars($row['category']);
+    $r3 = htmlspecialchars($row['year']);
+    $r4 = htmlspecialchars($row['isbn']);
+    
+    echo <<<_END
+  <pre>
+    Author $r0
+     Title $r1
+  Category $r2
+      Year $r3
+      ISBN $r4
+  </pre>
+  <form action='sqltest.php' method='post'>
+  <input type='hidden' name='delete' value='yes'>
+  <input type='hidden' name='isbn' value='$r4'>
+  <input type='submit' value='DELETE RECORD'></form>
+_END;
+  }
+
+  function get_post($pdo, $var)
+  {
+    return $pdo->quote($_POST[$var]);
+  }
+?>