Check if monolog runs in web context (#1024)

* Check if monolog runs in web context

src/Monolog/Handler/WebRequestRecognizerTrait.php

@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace Monolog\Handler;
+
+trait WebRequestRecognizerTrait
+{
+
+    /**
+     * Checks if PHP's serving a web request
+     * @return bool
+     */
+    protected function isWebRequest(): bool
+    {
+        return 'cli' !== \PHP_SAPI && 'phpdbg' !== \PHP_SAPI;
+    }
+}