Merge branch '3.4' into 4.3

* 3.4:
  Simpler example for Apache basic auth workaround
  [Console] Fix trying to access array offset on value of type int
  [Process] add tests for php executable finder if file does not exist
  [Cache] Make sure we get the correct number of values from redis::mget()

Author: nicolas-grekas

Tests/PhpExecutableFinderTest.php

@@ -46,4 +46,16 @@ public function testFindArguments()
             $this->assertEquals($f->findArguments(), [], '::findArguments() returns no arguments');
         }
     }
+
+    public function testNotExitsBinaryFile()
+    {
+        $f = new PhpExecutableFinder();
+        $phpBinaryEnv = PHP_BINARY;
+        putenv('PHP_BINARY=/usr/local/php/bin/php-invalid');
+
+        $this->assertFalse($f->find(), '::find() returns false because of not exist file');
+        $this->assertFalse($f->find(false), '::find(false) returns false because of not exist file');
+
+        putenv('PHP_BINARY='.$phpBinaryEnv);
+    }
 }