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--- en:web_development:named_arrays [2021/12/23 18:07]
mag [Foreach]
+++ en:web_development:named_arrays [2023/08/16 09:33] (current)
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 ==== 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.
+  * 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.
+[[en:web_development:databases:tables|Next: Tables]]

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