优化调试信息输出

src/base/Client.php

@@ -230,29 +230,34 @@ class Client
 		curl_close($ci);
 
 		if ($this->debug) {
-			echo "<pre>\r\n=====INFO=====\r\n";
-			echo "Request URL: $url\r\n",
-				"Remote Address: {$httpInfo['primary_ip']}:{$httpInfo['primary_port']}\r\n",
-				"Local Address: {$httpInfo['local_ip']}:{$httpInfo['local_port']}\r\n",
-				"Namelookup Time: {$httpInfo['namelookup_time']}\r\n",
-				"Connect Time: {$httpInfo['connect_time']}\r\n",
-				"Pre Transfer Time: {$httpInfo['pretransfer_time']}\r\n",
-				"Start Transfer Time: {$httpInfo['starttransfer_time']}\r\n",
-				"File Time: {$httpInfo['filetime']}\r\n",
-				"Total Time: {$httpInfo['total_time']}\r\n";
+			$info = "=====INFO=====\r\n"
+				."Request URL: $url\r\n"
+				."Remote Address: {$httpInfo['primary_ip']}:{$httpInfo['primary_port']}\r\n"
+				."Local Address: {$httpInfo['local_ip']}:{$httpInfo['local_port']}\r\n"
+				."Namelookup Time: {$httpInfo['namelookup_time']}\r\n"
+				."Connect Time: {$httpInfo['connect_time']}\r\n"
+				."Pre Transfer Time: {$httpInfo['pretransfer_time']}\r\n"
+				."Start Transfer Time: {$httpInfo['starttransfer_time']}\r\n"
+				."File Time: {$httpInfo['filetime']}\r\n"
+				."Total Time: {$httpInfo['total_time']}\r\n";
 
 			if (isset($errno)) {
-				echo "\r\n=====ERROR=====\r\nErrorNo: $errno\r\nErrorMsg: $errmsg\r\n";
+				$info .= "\r\n=====ERROR=====\r\nErrorNo: $errno\r\nErrorMsg: $errmsg\r\n";
 			}
 
-			echo "\r\n=====REQUEST=====\r\n",$httpInfo['request_header'];
+			$info .= "\r\n=====REQUEST=====\r\n{$httpInfo['request_header']}";
 
 			if (isset($body)) {
-				echo $body."\r\n";
+				$info .= $body."\r\n";
 			}
 
-			echo "\r\n=====RESPONSE=====\r\n",$responseHeaders,$response;
-			echo "\r\n</pre>";
+			$info .= "\r\n=====RESPONSE=====\r\n{$responseHeaders}{$response}";
+
+			if (PHP_SAPI == 'cli' || (isset($_SERVER['HTTP_X_REQUESTED_WITH']) && $_SERVER['HTTP_X_REQUESTED_WITH'] == 'XMLHttpRequest') || empty($_SERVER['HTTP_USER_AGENT'])) {
+				echo $info."\r\n";
+			} else {
+				echo '<pre>' . htmlspecialchars($info) . '</pre>';
+			}
 		}
 
 		return [$httpCode, $response];