diff --git a/.travis.yml b/.travis.yml
index d5118a82..6b771592 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,14 +4,8 @@ php:
   - 5.4
   - 5.5
   - 5.6
+  - 7.0
   - hhvm
-  - hhvm-nightly
-
-matrix:
-  allow_failures:
-    - php: hhvm
-    - php: hhvm-nightly
-  fast_finish: true
 
 install: ./travis-init.sh
 
diff --git a/src/ExtEventLoop.php b/src/ExtEventLoop.php
index 48657f96..7160c908 100644
--- a/src/ExtEventLoop.php
+++ b/src/ExtEventLoop.php
@@ -294,7 +294,7 @@ private function unsubscribeStreamEvent($stream, $flag)
      */
     private function createTimerCallback()
     {
-        $this->timerCallback = function ($_, $_, $timer) {
+        $this->timerCallback = function ($_, $__, $timer) {
             call_user_func($timer->getCallback(), $timer);
 
             if (!$timer->isPeriodic() && $this->isTimerActive($timer)) {
diff --git a/src/LibEventLoop.php b/src/LibEventLoop.php
index 6fbc8269..99417a12 100644
--- a/src/LibEventLoop.php
+++ b/src/LibEventLoop.php
@@ -298,7 +298,7 @@ private function unsubscribeStreamEvent($stream, $flag)
      */
     private function createTimerCallback()
     {
-        $this->timerCallback = function ($_, $_, $timer) {
+        $this->timerCallback = function ($_, $__, $timer) {
             call_user_func($timer->getCallback(), $timer);
 
             // Timer already cancelled ...
diff --git a/tests/AbstractLoopTest.php b/tests/AbstractLoopTest.php
index 17163e8b..29bde5aa 100644
--- a/tests/AbstractLoopTest.php
+++ b/tests/AbstractLoopTest.php
@@ -176,7 +176,7 @@ public function runShouldReturnWhenNoMoreFds()
 
         $this->writeToStream($input, "foo\n");
 
-        $this->assertRunFasterThan(0.005);
+        $this->assertRunFasterThan(0.015);
     }
 
     /** @test */
@@ -194,7 +194,7 @@ public function stopShouldStopRunningLoop()
         $this->assertRunFasterThan(0.005);
     }
 
-    public function testStopShouldPreventRunFromBlocking()
+    public function testStopShouldPreventRunFromBlocking($timeLimit = 0.005)
     {
         $this->loop->addTimer(
             1,
@@ -209,7 +209,7 @@ function () {
             }
         );
 
-        $this->assertRunFasterThan(0.005);
+        $this->assertRunFasterThan($timeLimit);
     }
 
     public function testIgnoreRemovedCallback()
diff --git a/tests/StreamSelectLoopTest.php b/tests/StreamSelectLoopTest.php
index 61b059c1..624ee447 100644
--- a/tests/StreamSelectLoopTest.php
+++ b/tests/StreamSelectLoopTest.php
@@ -37,6 +37,17 @@ public function testStreamSelectTimeoutEmulation()
         $this->assertGreaterThan(0.04, $interval);
     }
 
+    public function testStopShouldPreventRunFromBlocking($timeLimit = 0.005)
+    {
+        if (defined('HHVM_VERSION')) {
+            // HHVM is a bit slow, so give it more time
+            parent::testStopShouldPreventRunFromBlocking(0.5);
+        } else {
+            parent::testStopShouldPreventRunFromBlocking($timeLimit);
+        }
+    }
+
+
     public function signalProvider()
     {
         return [
diff --git a/travis-init.sh b/travis-init.sh
index 63deeb85..07b1d2a8 100755
--- a/travis-init.sh
+++ b/travis-init.sh
@@ -11,25 +11,29 @@ if [[ "$TRAVIS_PHP_VERSION" != "hhvm" &&
     # install 'event' PHP extension
     echo "yes" | pecl install event
 
-    # install 'libevent' PHP extension
-    curl http://pecl.php.net/get/libevent-0.1.0.tgz | tar -xz
-    pushd libevent-0.1.0
-    phpize
-    ./configure
-    make
-    make install
-    popd
-    echo "extension=libevent.so" >> "$(php -r 'echo php_ini_loaded_file();')"
+    # install 'libevent' PHP extension (does not support php 7)
+    if [[ "$TRAVIS_PHP_VERSION" != "7.0" ]]; then
+        curl http://pecl.php.net/get/libevent-0.1.0.tgz | tar -xz
+        pushd libevent-0.1.0
+        phpize
+       ./configure
+       make
+       make install
+       popd
+       echo "extension=libevent.so" >> "$(php -r 'echo php_ini_loaded_file();')"
+    fi
 
-    # install 'libev' PHP extension
-    git clone --recursive https://github.com/m4rw3r/php-libev
-    pushd php-libev
-    phpize
-    ./configure --with-libev
-    make
-    make install
-    popd
-    echo "extension=libev.so" >> "$(php -r 'echo php_ini_loaded_file();')"
+    # install 'libev' PHP extension (does not support php 7)
+    if [[ "$TRAVIS_PHP_VERSION" != "7.0" ]]; then
+        git clone --recursive https://github.com/m4rw3r/php-libev
+        pushd php-libev
+        phpize
+        ./configure --with-libev
+        make
+        make install
+        popd
+        echo "extension=libev.so" >> "$(php -r 'echo php_ini_loaded_file();')"
+    fi
 
 fi
 

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