update readme

1 files changed, 26 insertions, 0 deletions

diff --git a/README.md b/README.md
index 128b6e3..e48997b 100644
--- a/README.md
+++ b/README.md
@@ -26,6 +26,32 @@ Hello, World!
 
 The script, [hello.php](./hello.php), is executed on PHPHP on PHP.
 
+### PHPHP on PHPHP on PHP
+
+Edit this line as the following:
+
+```diff
+ if (defined('PHPHP')) {
+-    if (PHPHP < 2) {
++    if (PHPHP < 3) {
+         echo "Running" . str_repeat(" on PHPHP", PHPHP) . " on PHP\n";
+```
+
+Then, execute `index.php`. I recommend that you enable JIT.
+
+```bash
+php -d opcache.enable_cli=on -d opcache.jit=on -d opcache.jit_buffer_size=1G index.php
+```
+
+It will execute hello world on PHPHP on PHPHP on PHP.
+
+```
+Running on PHP
+Running on PHPHP on PHP
+Running on PHPHP on PHPHP on PHP
+Hello, World!
+```
+
 ## Talks
 
 [Talk in PHPerKaigi 2025 (in Japanese)](https://fortee.jp/phperkaigi-2025/proposal/ef8480fc-1403-4020-9f24-aca9361f51e4)