Bug 1577259: fix dynamic property references in dwoo for php7

behatnotneeded

Change-Id: Iac965f8ce3999be6ae839a10cf5da7b2fd3b0487
Signed-off-by: Robert Lyon <robertl@catalyst.net.nz>
(cherry picked from commit 92b6e408)

htdocs/lib/dwoo/README.Mahara

@@ -8,4 +8,4 @@ This library is used for all the templating.
 
 Changes:
 
- * None
+ * Make dwoo PHP7 compatable by fixing dynamic property references

htdocs/lib/dwoo/dwoo/Dwoo/Core.php

@@ -1261,8 +1261,8 @@ class Dwoo_Core
                     return null;
                 }
             } else {
-                if (is_object($data) && ($safeRead === false || isset($data->$m[2][$k]))) {
-                    $data = $data->$m[2][$k];
+                if (is_object($data) && ($safeRead === false || isset($data->{$m[2][$k]}))) {
+                    $data = $data->{$m[2][$k]};
                 } else {
                     return null;
                 }
@@ -1434,7 +1434,7 @@ class Dwoo_Core
                 }
             } elseif ($sep === '->') {
                 if (is_object($cur)) {
-                    $cur = $cur->$m[2][$k];
+                    $cur = $cur->{$m[2][$k]};
                 } else {
                     return null;
                 }
@@ -1480,7 +1480,7 @@ class Dwoo_Core
                     if (is_object($cur) === false) {
                         $cur = new stdClass;
                     }
-                    $cur =& $cur->$m[2][$k];
+                    $cur =& $cur->{$m[2][$k]};
                 } else {
                     return false;
                 }
@@ -1495,7 +1495,7 @@ class Dwoo_Core
                 if (is_object($cur) === false) {
                     $cur = new stdClass;
                 }
-                $cur->$last[1] = $value;
+                $cur->{$last[1]} = $value;
             } else {
                 return false;
             }