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--- en:web_development:databases:php [2021/12/24 12:54]
mag
+++ en:web_development:databases:php [2023/08/16 09:33] (current)
@@ Line 17: / Line 17: @@
     include('footer.php');
 ?></code>
+==== Objects ====
+  * Objects are an advanced data structure and we won't go into it too much here, but you'll need to understand a little bit to use the PHP database connection in this actviity.
+  * An object is like a named array where you can access each element by name.
+  * But an object also has functions built into. Recall that in Javascript, <html>audio</html> has built-in functions like <html>.play()</html>, <html>.paused()</html> and built-in information like <html>.paused</html>. That's because <html>audio</html> is an object.
+  * Similarly, in PHP, an object can have both data and functions. For example, a database connection object can have information about the connection and also have functions to extract data.
+  * Whereas you access the information in an array using <html> [] </html>, we access information and functions using <html>-></html>.
+  * To use an abstract example, we could create an object called $table.
+  * We could set the number of legs on the table as follows.
+<code>$table->legs = 4;</code>
+  * We could also move the table to another location as follows.
+<code>$table->move($location);</code>
+  * There is a whole school of programming based on objects (Object-oriented programming) and objects could be the subject of many classes, but this is all you need to know to use the database connection.
 ==== PDO Connection ====
@@ Line 22: / Line 35: @@
   * Copy the following code at the top of the first PHP block.
 <code>    // Set up database connection
-    define ('DBCONNECT', "../../pdo.php"); // database connection
+    define ('DBCONNECT', "/home/dh_9m7wr9/pdo.php"); // database connection
     include_once DBCONNECT;
-    $db  = 'webdev';
+    $db  = 'techschoolwebdev';
     $dsn = "mysql:host=$db_host;dbname=$db;charset=utf8mb4";
     try

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