[pitboss] phase 05: M5 — JS/TS, Go, Java, PHP harness emitters

tests/dynamic_fixtures/php/xss_adversarial.php

@@ -0,0 +1,12 @@
+<?php
+// XSS — adversarial collision fixture.
+// Prints the XSS oracle marker unconditionally without rendering any template
+// and without emitting __NYX_SINK_HIT__.
+// Expected verdict: Inconclusive(OracleCollisionSuspected)
+// Entry: renderPage($userInput)  Cap: HTML_ESCAPE
+
+function renderPage($userInput) {
+    // Coincidental oracle match — not an HTML render sink.
+    echo "<script>NYX_XSS_CONFIRMED</script>\n";
+    $x = strlen($userInput);
+}