Utilities > Reflection > setPropertyValue() method > sets value of given property

src/Exception/Reflection/NotExistingPropertyException.php

@@ -0,0 +1,33 @@
+<?php
+
+/**
+ * (c) Meritoo.pl, http://www.meritoo.pl
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Meritoo\Common\Exception\Reflection;
+
+/**
+ * An exception used while property does not exist in instance of class
+ *
+ * @author    Meritoo <github@meritoo.pl>
+ * @copyright Meritoo <http://www.meritoo.pl>
+ */
+class NotExistingPropertyException extends \Exception
+{
+    /**
+     * Creates exception
+     *
+     * @param mixed  $object   Object that should contains given property
+     * @param string $property Name of the property
+     * @return NotExistingPropertyException
+     */
+    public static function create($object, $property)
+    {
+        $template = 'Property \'%s\' does not exist in instance of class \'%s\'. Did you use proper name of property?';
+        $message = sprintf($template, $property, get_class($object));
+
+        return new static($message);
+    }
+}

src/Utilities/Reflection.php

@@ -13,6 +13,7 @@ use Doctrine\Common\Util\Inflector;
 use Meritoo\Common\Collection\Collection;
 use Meritoo\Common\Exception\Reflection\CannotResolveClassNameException;
 use Meritoo\Common\Exception\Reflection\MissingChildClassesException;
+use Meritoo\Common\Exception\Reflection\NotExistingPropertyException;
 use Meritoo\Common\Exception\Reflection\TooManyChildClassesException;
 
 /**
@@ -659,4 +660,36 @@ class Reflection
 
         return $parentClass->getName();
     }
+
+    /**
+     * Sets value of given property
+     *
+     * @param mixed  $object   Object that should contains given property
+     * @param string $property Name of the property
+     * @param mixed  $value    Value of the property
+     * @throws NotExistingPropertyException
+     */
+    public static function setPropertyValue($object, $property, $value)
+    {
+        $reflectionProperty = self::getProperty($object, $property);
+
+        /*
+         * Oops, property does not exist
+         */
+        if (null === $reflectionProperty) {
+            throw NotExistingPropertyException::create($object, $property);
+        }
+
+        $notAccessible = $reflectionProperty->isPrivate() || $reflectionProperty->isProtected();
+
+        if ($notAccessible) {
+            $reflectionProperty->setAccessible(true);
+        }
+
+        $reflectionProperty->setValue($object, $value);
+
+        if ($notAccessible) {
+            $reflectionProperty->setAccessible(false);
+        }
+    }
 }