Merge branch 'hotfix/incrby_float_prefix'

Fixes phpredis#408

Author: michael-grunder

redis.c

@@ -1330,13 +1330,11 @@ PHP_METHOD(Redis, incrByFloat) {
 		RETURN_FALSE;
 	}
 
-	// Prefix our key, free it if we have
+	// Prefix key, format command, free old key if necissary
 	key_free = redis_key_prefix(redis_sock, &key, &key_len TSRMLS_CC);
+    cmd_len = redis_cmd_format_static(&cmd, "INCRBYFLOAT", "sf", key, key_len, val);
 	if(key_free) efree(key);
 
-	// Format our INCRBYFLOAT command
-	cmd_len = redis_cmd_format_static(&cmd, "INCRBYFLOAT", "sf", key, key_len, val);
-
 	REDIS_PROCESS_REQUEST(redis_sock, cmd, cmd_len);
 	IF_ATOMIC() {
 		redis_bulk_double_response(INTERNAL_FUNCTION_PARAM_PASSTHRU, redis_sock, NULL, NULL);

tests/TestRedis.php

@@ -462,31 +462,41 @@ public function testIncr()
 
     public function testIncrByFloat()
     {
-	// incrbyfloat is new in 2.6.0
-	if (version_compare($this->version, "2.5.0", "lt")) {
-		$this->markTestSkipped();
-	}
+	    // incrbyfloat is new in 2.6.0
+	    if (version_compare($this->version, "2.5.0", "lt")) {
+            $this->markTestSkipped();
+        }
 
-	$this->redis->delete('key');
+        $this->redis->delete('key');
+        
+        $this->redis->set('key', 0);
 
-	$this->redis->set('key', 0);
+        $this->redis->incrbyfloat('key', 1.5);
+        $this->assertEquals('1.5', $this->redis->get('key'));
 
-	$this->redis->incrbyfloat('key', 1.5);
-	$this->assertEquals('1.5', $this->redis->get('key'));
+        $this->redis->incrbyfloat('key', 2.25);
+        $this->assertEquals('3.75', $this->redis->get('key'));
 
-	$this->redis->incrbyfloat('key', 2.25);
-	$this->assertEquals('3.75', $this->redis->get('key'));
+        $this->redis->incrbyfloat('key', -2.25);
+        $this->assertEquals('1.5', $this->redis->get('key'));
 
-	$this->redis->incrbyfloat('key', -2.25);
-	$this->assertEquals('1.5', $this->redis->get('key'));
+        $this->redis->set('key', 'abc');
 
-	$this->redis->set('key', 'abc');
+        $this->redis->incrbyfloat('key', 1.5);
+        $this->assertTrue("abc" === $this->redis->get('key'));
 
-	$this->redis->incrbyfloat('key', 1.5);
-	$this->assertTrue("abc" === $this->redis->get('key'));
+        $this->redis->incrbyfloat('key', -1.5);
+        $this->assertTrue("abc" === $this->redis->get('key'));
+
+        // Test with prefixing
+        $this->redis->setOption(Redis::OPT_PREFIX, 'someprefix:');
+        $this->redis->del('key');
+        $this->redis->incrbyfloat('key',1.8);
+        $this->assertEquals('1.8', $this->redis->get('key'));
+        $this->redis->setOption(Redis::OPT_PREFIX, '');
+        $this->assertTrue($this->redis->exists('someprefix:key'));
+        $this->redis->del('someprefix:key');
 
-	$this->redis->incrbyfloat('key', -1.5);
-	$this->assertTrue("abc" === $this->redis->get('key'));
     }
 
     public function testDecr()