diff --git a/composer.lock b/composer.lock
index 403f8a0..b0c6b08 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1587,12 +1587,12 @@
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/config.git",
-                "reference": "5d1d799de46fb2f1c5903dae5ded9df8cc991dc8"
+                "reference": "98d7805fa31752bade23c01e9d2e8a9b90d20181"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/config/zipball/5d1d799de46fb2f1c5903dae5ded9df8cc991dc8",
-                "reference": "5d1d799de46fb2f1c5903dae5ded9df8cc991dc8",
+                "url": "https://api.github.com/repos/symfony/config/zipball/98d7805fa31752bade23c01e9d2e8a9b90d20181",
+                "reference": "98d7805fa31752bade23c01e9d2e8a9b90d20181",
                 "shasum": ""
             },
             "require": {
@@ -1642,7 +1642,7 @@
             ],
             "description": "Symfony Config Component",
             "homepage": "https://symfony.com",
-            "time": "2018-06-25T17:06:32+00:00"
+            "time": "2018-07-26T11:25:51+00:00"
         },
         {
             "name": "symfony/console",
@@ -1650,12 +1650,12 @@
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/console.git",
-                "reference": "42a0adc7dd656ca2e360285eb6d822df9ce0b160"
+                "reference": "0c1fcbb9afb5cff992c982ff99c0434f0146dcfc"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/console/zipball/42a0adc7dd656ca2e360285eb6d822df9ce0b160",
-                "reference": "42a0adc7dd656ca2e360285eb6d822df9ce0b160",
+                "url": "https://api.github.com/repos/symfony/console/zipball/0c1fcbb9afb5cff992c982ff99c0434f0146dcfc",
+                "reference": "0c1fcbb9afb5cff992c982ff99c0434f0146dcfc",
                 "shasum": ""
             },
             "require": {
@@ -1703,7 +1703,7 @@
             ],
             "description": "Symfony Console Component",
             "homepage": "https://symfony.com",
-            "time": "2018-07-09T12:58:09+00:00"
+            "time": "2018-07-26T11:13:39+00:00"
         },
         {
             "name": "symfony/contracts",
@@ -1825,12 +1825,12 @@
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/filesystem.git",
-                "reference": "87d17aa4b6ed33ed85a7ae3442f3c7ba3d8beaf8"
+                "reference": "15754f6a1ccc88b14be99092299338004a4c8575"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/filesystem/zipball/87d17aa4b6ed33ed85a7ae3442f3c7ba3d8beaf8",
-                "reference": "87d17aa4b6ed33ed85a7ae3442f3c7ba3d8beaf8",
+                "url": "https://api.github.com/repos/symfony/filesystem/zipball/15754f6a1ccc88b14be99092299338004a4c8575",
+                "reference": "15754f6a1ccc88b14be99092299338004a4c8575",
                 "shasum": ""
             },
             "require": {
@@ -1867,7 +1867,7 @@
             ],
             "description": "Symfony Filesystem Component",
             "homepage": "https://symfony.com",
-            "time": "2018-05-31T10:18:23+00:00"
+            "time": "2018-07-26T11:25:51+00:00"
         },
         {
             "name": "symfony/finder",
@@ -1875,12 +1875,12 @@
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/finder.git",
-                "reference": "31e8fe0c8e55ec05508c3f85e85f11e4b094ca9d"
+                "reference": "e85fcc2297c61b09193d17ac606413cedf2092c7"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/finder/zipball/31e8fe0c8e55ec05508c3f85e85f11e4b094ca9d",
-                "reference": "31e8fe0c8e55ec05508c3f85e85f11e4b094ca9d",
+                "url": "https://api.github.com/repos/symfony/finder/zipball/e85fcc2297c61b09193d17ac606413cedf2092c7",
+                "reference": "e85fcc2297c61b09193d17ac606413cedf2092c7",
                 "shasum": ""
             },
             "require": {
@@ -1916,7 +1916,7 @@
             ],
             "description": "Symfony Finder Component",
             "homepage": "https://symfony.com",
-            "time": "2018-07-16T12:56:42+00:00"
+            "time": "2018-07-26T11:25:51+00:00"
         },
         {
             "name": "symfony/polyfill-ctype",
@@ -2041,12 +2041,12 @@
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/stopwatch.git",
-                "reference": "e656f8243ff25f65737cd1aa368fe9cf84855b5e"
+                "reference": "6037c66d94119fb76907c461a4bfb3a31e74ae66"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/stopwatch/zipball/e656f8243ff25f65737cd1aa368fe9cf84855b5e",
-                "reference": "e656f8243ff25f65737cd1aa368fe9cf84855b5e",
+                "url": "https://api.github.com/repos/symfony/stopwatch/zipball/6037c66d94119fb76907c461a4bfb3a31e74ae66",
+                "reference": "6037c66d94119fb76907c461a4bfb3a31e74ae66",
                 "shasum": ""
             },
             "require": {
@@ -2083,7 +2083,7 @@
             ],
             "description": "Symfony Stopwatch Component",
             "homepage": "https://symfony.com",
-            "time": "2018-07-13T17:06:58+00:00"
+            "time": "2018-07-26T11:01:15+00:00"
         },
         {
             "name": "symfony/yaml",
diff --git a/docs/README.md b/docs/README.md
index 031373e..41bdb62 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -282,6 +282,21 @@ $textTemplate->addSection("sectionxy", function ($content, $params, $command, $c
 ```
 
 
+## Function return redirection
+
+Append output to a variable.
+
+```
+{print >> out}
+A
+{/print}
+{print >> out}
+B
+{/print}
+
+{= out}
+```
+
 
 ## Debugging the Parameters
 
diff --git a/src/TextTemplate.php b/src/TextTemplate.php
index 64e1b52..56873e7 100644
--- a/src/TextTemplate.php
+++ b/src/TextTemplate.php
@@ -62,6 +62,9 @@ public function __construct ($text="") {
         $this->mTemplateText = $text;
         $this->mFilter = self::$__DEFAULT_FILTER;
         $this->mFunctions = self::$__DEFAULT_FUNCTION;
+        $this->sections["print"] = function ($content) {
+            return $content;
+        };
     }
 
     /**
@@ -494,7 +497,13 @@ private function _runSection($command, &$context, $content, $cmdParam, $softFail
                 $content, $funcParams["paramArr"], $command, $context, $cmdParam
             );
             if ($funcParams["retAs"] !== null) {
-                $context[$funcParams["retAs"]] = $out;
+                if ($funcParams["append"]) {
+                    if ( ! isset ($context[$funcParams["retAs"]]))
+                        $context[$funcParams["retAs"]] = "";
+                    $context[$funcParams["retAs"]] .= $out;
+                } else {
+                    $context[$funcParams["retAs"]] = $out;
+                }
                 return "";
             } else {
                 return $out;
@@ -524,11 +533,15 @@ private function _parseFunctionParameters ($cmdParam, &$context, $softFail)
             $exAs = $matches[1];
         }, $cmdParamRest);
 
-        $cmdParamRest = preg_replace_callback("/\>\s*([a-z0-9\_]+)/i", function ($matches) use (&$retAs) {
-            $retAs = $matches[1];
+        $append = false;
+        $cmdParamRest = preg_replace_callback("/(\>|\>\>)\s*([a-z0-9\_]+)/i", function ($matches) use (&$retAs, &$append) {
+            if ($matches[1] == ">>") {
+                $append = true;
+            }
+            $retAs = $matches[2];
         }, $cmdParamRest);
 
-        return ["paramArr" => $paramArr, "retAs" => $retAs, "exAs" => $exAs];
+        return ["paramArr" => $paramArr, "retAs" => $retAs, "exAs" => $exAs, "append" => $append];
     }
 
 
@@ -590,7 +603,13 @@ function ($matches) use (&$context, $softFail) {
                             $funcParams["paramArr"], $command, $context, $cmdParam
                         );
                         if ($funcParams["retAs"] !== null) {
-                            $context[$funcParams["retAs"]] = $out;
+                            if ($funcParams["append"]) {
+                                if ( ! isset ($context[$funcParams["retAs"]]))
+                                    $context[$funcParams["retAs"]] = "";
+                                $context[$funcParams["retAs"]] .= $out;
+                            } else {
+                                $context[$funcParams["retAs"]] = $out;
+                            }
                         } else {
                             return $out;
                         }
diff --git a/test/unit/tpls/15_print/_in.php b/test/unit/tpls/15_print/_in.php
new file mode 100644
index 0000000..7505abd
--- /dev/null
+++ b/test/unit/tpls/15_print/_in.php
@@ -0,0 +1,7 @@
+<?php
+
+return [
+    "arrVal1" => [
+        "a", "b", "c"
+    ]
+];
\ No newline at end of file
diff --git a/test/unit/tpls/15_print/_in.txt b/test/unit/tpls/15_print/_in.txt
new file mode 100644
index 0000000..633dc1d
--- /dev/null
+++ b/test/unit/tpls/15_print/_in.txt
@@ -0,0 +1,25 @@
+1:
+{print > out1}
+    AAA
+{/print}
+2:
+{print >> out2}
+    BBB
+{/print}
+{print >> out2}
+    BBB
+{/print}
+3:
+{print > out3}
+    CCC
+{/print}
+{print > out3}
+    CCC
+{/print}
+4:
+{=out1}
+5:
+{=out2}
+6:
+{=out3}
+7:
\ No newline at end of file
diff --git a/test/unit/tpls/15_print/out.txt b/test/unit/tpls/15_print/out.txt
new file mode 100644
index 0000000..3dee823
--- /dev/null
+++ b/test/unit/tpls/15_print/out.txt
@@ -0,0 +1,14 @@
+1:
+   2:
+   3:
+   4:
+
+       AAA
+   5:
+
+       BBB
+       BBB
+   6:
+
+       CCC
+   7:
\ No newline at end of file
diff --git a/test/value-redirection.phpt b/test/value-redirection.phpt
new file mode 100644
index 0000000..90a6c4c
--- /dev/null
+++ b/test/value-redirection.phpt
@@ -0,0 +1,58 @@
+<?php
+/**
+ * Created by PhpStorm.
+ * User: matthes
+ * Date: 25.07.18
+ * Time: 11:38
+ */
+
+namespace Test;
+require __DIR__ . "/../vendor/autoload.php";
+
+use http\Exception\InvalidArgumentException;
+use Leuffen\TextTemplate\TextTemplate;
+use Tester\Assert;
+use Tester\Environment;
+
+Environment::setup();
+
+
+$tpl = <<<EOT
+-A-
+{print > out1}
+    AAA
+{/print}
+-B-
+{print >> out2}
+    BBB
+{/print}
+{print >> out2}
+    BBB
+{/print}
+-C-
+{= out1}
+-D-
+{= out2}
+EOT;
+
+$compare = <<<EOT
+-A-*AAA*
+-B-
+-C-
+*BBB*
+EOT;
+
+
+$template = new TextTemplate($tpl);
+$sec = [];
+$template->addSection("section", function ($content, $params, $command, $context, $cmdParam) use (&$sec) {
+    $sec[$params["name"]] = $content;
+    if ($command !== "section")
+        throw new InvalidArgumentException("Command missing");
+    return "*" . trim ($content) . "*";
+});
+$textResult = $template->apply([]);
+
+Assert::equal($compare, $textResult);
+Assert::equal("AAA", trim($sec["A"]));
+Assert::equal("BBB", trim($sec["B"]));
\ No newline at end of file