diff --git a/euler9.php b/euler9.php
new file mode 100644
index 0000000..517216d
--- /dev/null
+++ b/euler9.php
@@ -0,0 +1,25 @@
+<?php
+/*
+* Gnieark's anwser to euler problem 9
+* https://projecteuler.net/problem=9
+*/
+
+/*
+a²+b²=c²
+a+b+c=1000
+so a+b+sqrt(a²+b²) = 1000
+
+and 
+c²> a²
+a<c<1000
+a and b <500
+*/
+
+for($a=1;$a<501;$a++){
+    for($b=1;$b<501;$b++){
+        if($a+$b+sqrt(pow($a,2)+pow($b,2)) == 1000){
+            echo ($a*$b*sqrt(pow($a,2)+pow($b,2)));
+            break 2;
+        }
+    }
+}
\ No newline at end of file