Merge branch 'PHP-8.0'

* PHP-8.0:
  Fixed bug #80781

Author: nikic

Zend/tests/bug80781.phpt

@@ -0,0 +1,31 @@
+--TEST--
+Bug #80781: Error handler that throws ErrorException infinite loop
+--FILE--
+<?php
+
+function handle(int $severity, string $message, string $file, int $line): bool {
+	if((error_reporting() & $severity) !== 0) {
+		throw new \ErrorException($message, 0, $severity, $file, $line);
+	}
+
+	return true; // stfu operator
+}
+
+set_error_handler('handle');
+
+function getPlugin(string $plugin) : bool{
+	return false;
+}
+
+$data = [];
+$array = [];
+if (isset($array[$data]) or getPlugin($data)) {
+
+}
+
+?>
+--EXPECTF--
+Fatal error: Uncaught TypeError: Illegal offset type in isset or empty in %s:%d
+Stack trace:
+#0 {main}
+  thrown in %s on line %d