diff --git a/romanToNumber/yannick-php/README.md b/romanToNumber/yannick-php/README.md
new file mode 100644
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--- /dev/null
+++ b/romanToNumber/yannick-php/README.md
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+# Roman To Number en PHP et en TDD
+
+Je commence par installer PHP et PHPUnit sur ma machine
+
+```bash
+sudo apt install php phpunit
+```
+
+J'écris un premier cas de tests simple : I donne 1 (en copiant collant le [code example sur phpunit](https://phpunit.de/getting-started/phpunit-8.html).
+
+Ça donne
+
+```php
+<?php
+declare(strict_types=1);
+
+use PHPUnit\Framework\TestCase;
+
+final class RomanToNumberTest extends TestCase {
+
+  public function testIDonne1(): void {
+    $this->assertEquals('1', romanToNumber('I'));
+  }
+
+}
+```
+
+l'execution donne
+
+```bash
+~/ $ phpunit --testdox romanToNumberTest.php
+PHPUnit 5.4.6 by Sebastian Bergmann and contributors.
+
+RomanToNumber
+ [ ] I donne 1
+
+```
+
+ou
+
+```bash
+~/ $ phpunit romanToNumberTest.php
+PHPUnit 5.4.6 by Sebastian Bergmann and contributors.
+
+E                                                                   1 / 1 (100%)
+
+Time: 30 ms, Memory: 4.00MB
+
+There was 1 error:
+
+1) RomanToNumberTest::testIDonne1
+Error: Call to undefined function romanToNumber()
+
+/home/yaf/Scopyleft/stage-lepoles/romanToNumber/yannick-php/romanToNumberTest.php:9
+
+ERRORS!
+Tests: 1, Assertions: 0, Errors: 1.
+```
+
+Un peu plus verbeux, ce dernier affichage est celui par défaut. Il a le mérite d'afficher clairement l'erreur (et non la failure, attention la différence est importante :)).
+
+
+Ensuite, il faut faire passer au vert au plus vite :
+
+```php
+<?php
+declare(strict_types=1);
+
+function romanToNumber(string $roman): string {
+  return '1';
+}
+```
+
+Et ensuite, on écrit le test suivant. Celui qui, par exemple, donne 5 pour V
+
+```php
+<?php
+declare(strict_types=1);
+
+include 'romanToNumber.php';
+
+use PHPUnit\Framework\TestCase;
+
+final class RomanToNumberTest extends TestCase {
+
+  public function testIDonne1() {
+    $this->assertEquals(
+      '1',
+      romanToNumber('I')
+    );
+  }
+
+  public function testVDonne5() {
+    $this->assertEquals(
+      '5',
+      romanToNumber('V')
+    );
+  }
+
+}
+```
+
+L'execution donne :
+
+```bash
+~/ $ phpunit romanToNumberTest.php
+PHPUnit 5.4.6 by Sebastian Bergmann and contributors.
+
+.F                                                                  2 / 2 (100%)
+
+Time: 34 ms, Memory: 4.00MB
+
+There was 1 failure:
+
+1) RomanToNumberTest::testVDonne5
+Failed asserting that two strings are equal.
+--- Expected
++++ Actual
+@@ @@
+-'5'
++'1'
+
+/home/yaf/Scopyleft/stage-lepoles/romanToNumber/yannick-php/romanToNumberTest.php:20
+
+FAILURES!
+Tests: 2, Assertions: 2, Failures: 1.
+
+```
+
+Et l'évolution la plus rapide pour passer au vert :
+
+```php
+<?php
+declare(strict_types=1);
+
+function romanToNumber(string $roman): string {
+  if ($roman == 'V') {
+    return '5';
+  }
+  return '1';
+}
+```
+
+Ensuite, on peut envisager un refactoring... Puis un nouveau test... Et ainsi de suite, jusqu'à pouvoir traduire `MCMLXXVII`
diff --git a/romanToNumber/yannick-php/romanToNumber.php b/romanToNumber/yannick-php/romanToNumber.php
new file mode 100644
index 0000000..8cb99a9
--- /dev/null
+++ b/romanToNumber/yannick-php/romanToNumber.php
@@ -0,0 +1,9 @@
+<?php
+declare(strict_types=1);
+
+function romanToNumber(string $roman): string {
+  if ($roman == 'V') {
+    return '5';
+  }
+  return '1';
+}
diff --git a/romanToNumber/yannick-php/romanToNumberTest.php b/romanToNumber/yannick-php/romanToNumberTest.php
new file mode 100644
index 0000000..1d070cb
--- /dev/null
+++ b/romanToNumber/yannick-php/romanToNumberTest.php
@@ -0,0 +1,26 @@
+<?php
+declare(strict_types=1);
+
+include 'romanToNumber.php';
+
+use PHPUnit\Framework\TestCase;
+
+final class RomanToNumberTest extends TestCase {
+
+  public function testIDonne1() {
+    $this->assertEquals(
+      '1',
+      romanToNumber('I')
+    );
+  }
+
+  public function testVDonne5() {
+    $this->assertEquals(
+      '5',
+      romanToNumber('V')
+    );
+  }
+
+}
+
+
diff --git a/romanToNumber/yannick/README.md b/romanToNumber/yannick-ruby/README.md
similarity index 100%
rename from romanToNumber/yannick/README.md
rename to romanToNumber/yannick-ruby/README.md
diff --git a/romanToNumber/yannick/roman_to_number.rb b/romanToNumber/yannick-ruby/roman_to_number.rb
similarity index 100%
rename from romanToNumber/yannick/roman_to_number.rb
rename to romanToNumber/yannick-ruby/roman_to_number.rb