improve docker output

docker/crawl.php

@@ -7,12 +7,35 @@ if(!$url=getenv('CRAWL_URL')){
 	die("No env: CRAWL_URL\n");
 }
 
+if($code=getenv('CRAWL_CODE')){
+	$codes=array_filter(array_map('trim',explode(',',$code)));
+}else{
+    $codes=[];
+}
+
 $crawler=new Crawler();
 $crawler->crawl($url);
 
+$summary=[];
+$details='';
 foreach($crawler->getResults() as $url=>$result){
-        echo("{$result['code']} {$url}\n");
+    $summary[$result['code']]++;
+
+    if( count($codes)==0 || in_array($result['code'],$codes) ){
+        $details.="{$result['code']} {$url}\n";
         foreach($result['foundOn'] as $url=>$count){
-            echo("    <- ($count) $url\n");
+            $details.="    <- ($count) $url\n";
+        }
     }
 }
+
+ksort($summary);
+echo '|code|count|'."\n";
+echo '|----|-----|'."\n";
+foreach($summary as $code=>$count){
+    echo "| $code | $count |\n";
+}
+
+if($details){
+    echo "\n\n----\n\n```\n$details\n```\n";
+}