Added PHP Magic Constants

Magic_Constants.php

@@ -0,0 +1,35 @@
+<?php
+namespace MyNamespace;
+
+// Magic constants demo
+echo "Current line number: " . __LINE__ . "<br/>"; // Output current line number
+echo "Full file path: " . __FILE__ . "<br/>";  // Output the full path to the file
+echo "Directory path: " . __DIR__ . "<br/>";  // Output the directory of the file
+
+// Function example using __FUNCTION__
+function exampleFunction() {
+    echo "Function name: " . __FUNCTION__ . "<br/>";  // Output current function's name
+}
+exampleFunction();
+
+// Class example using __CLASS__
+class ExampleClass {
+    function displayClassName() {
+        echo "Class name: " . __CLASS__ . "<br/>";  // Output current class's name
+    }
+}
+$obj = new ExampleClass();
+$obj->displayClassName();
+
+// Method example using __METHOD__
+class MethodExample {
+    public function showMethodName() {
+        echo "Method name: " . __METHOD__ . "<br/>";  // Output current method's name
+    }
+}
+$obj2 = new MethodExample();
+$obj2->showMethodName();
+
+// Namespace example using __NAMESPACE__
+echo "Current namespace: " . __NAMESPACE__ . "<br/>";
+?>