diff --git a/src/pocketmine/Server.php b/src/pocketmine/Server.php
index db11d1d48..87b8b2f97 100644
--- a/src/pocketmine/Server.php
+++ b/src/pocketmine/Server.php
@@ -1453,7 +1453,11 @@ class Server{
 
 			define('pocketmine\DEBUG', (int) $this->getProperty("debug.level", 1));
 
-			ini_set('assert.exception', 1);
+			if(((int) ini_get('zend.assertions')) > 0 and ((bool) $this->getProperty("debug.assertions.warn-if-enabled", true)) !== false){
+				$this->logger->warning("Debugging assertions are enabled, this may impact on performance. To disable them, set `zend.assertions = -1` in php.ini.");
+			}
+
+			ini_set('assert.exception', (bool) $this->getProperty("debug.assertions.throw-exception", 0));
 
 			if($this->logger instanceof MainLogger){
 				$this->logger->setLogDebug(\pocketmine\DEBUG > 1);
diff --git a/src/pocketmine/resources/pocketmine.yml b/src/pocketmine/resources/pocketmine.yml
index b32cdd72c..442258b5c 100644
--- a/src/pocketmine/resources/pocketmine.yml
+++ b/src/pocketmine/resources/pocketmine.yml
@@ -85,6 +85,12 @@ network:
 
 debug:
  #To enable assertion execution, set zend.assertions in your php.ini to 1
+ assertions:
+  #Warn if assertions are enabled in php.ini, due to assertions may impact on runtime performance if enabled.
+  warn-if-enabled: true
+  #Enable throwing exceptions when assertions fail, will allow obtaining more detailed information on the failed assertion, but may cause a server crash.
+  #If set to false, a warning will be raised instead of throwing an exception.
+  throw-exception: false
  #If > 1, it will show debug messages in the console
  level: 1
  #Enables /status, /gc