diff --git a/src/data/roadmaps/php/content/csrf-protection@J9yIXZTtwbFzH2u4dI1ep.md b/src/data/roadmaps/php/content/csrf-protection@J9yIXZTtwbFzH2u4dI1ep.md
index a4911df8d..919cef6b2 100644
--- a/src/data/roadmaps/php/content/csrf-protection@J9yIXZTtwbFzH2u4dI1ep.md
+++ b/src/data/roadmaps/php/content/csrf-protection@J9yIXZTtwbFzH2u4dI1ep.md
@@ -18,4 +18,4 @@ if(isset($_POST['csrf']) && $_POST['csrf'] === $_SESSION['csrf']) {
 
 Visit the following resources to learn more:
 
-- [@article@PHP Tutorial CSRF] (https://www.phptutorial.net/php-tutorial/php-csrf/)
+- [@article@PHP Tutorial CSRF](https://www.phptutorial.net/php-tutorial/php-csrf/)
diff --git a/src/data/roadmaps/php/content/inheritance@c5q2e_jyMt8Pir5Od3lRi.md b/src/data/roadmaps/php/content/inheritance@c5q2e_jyMt8Pir5Od3lRi.md
index 5ae92d087..cad0f79a8 100644
--- a/src/data/roadmaps/php/content/inheritance@c5q2e_jyMt8Pir5Od3lRi.md
+++ b/src/data/roadmaps/php/content/inheritance@c5q2e_jyMt8Pir5Od3lRi.md
@@ -25,4 +25,4 @@ In the above example, the 'Car' class inherits the drive method from the 'Vehicl
 
 Visit the following resources to learn more:
 
-- [@official@Inheritance](https://www.php.net/manual/en/keyword.extends.php)
\ No newline at end of file
+- [@official@Inheritance](https://www.php.net/manual/en/language.oop5.inheritance.php)
diff --git a/src/data/roadmaps/php/content/polymorphism@gtq5KrghF28f5G8nuDcYQ.md b/src/data/roadmaps/php/content/polymorphism@gtq5KrghF28f5G8nuDcYQ.md
index fb0fd32ac..002c0911e 100644
--- a/src/data/roadmaps/php/content/polymorphism@gtq5KrghF28f5G8nuDcYQ.md
+++ b/src/data/roadmaps/php/content/polymorphism@gtq5KrghF28f5G8nuDcYQ.md
@@ -35,4 +35,4 @@ This creates a scalable way to add more shapes, as you only need to follow the '
 
 Visit the following resources to learn more:
 
-- [@official@Polymorphism](https://www.php.net/manual/en/language.oop5.polymorphism.php)
+- [@opensource@Polymorphism](https://www.phptutorial.net/php-oop/php-polymorphism/)