Regression/unset properties behavior

tests/classes/unset_properties.phpt

@@ -0,0 +1,154 @@
+--TEST--
+Un-setting instance properties causes magic methods to be called when trying to access them from outside the magic
+methods themselves.
+--FILE--
+<?php
+
+class Test
+{
+	public    $publicProperty        = 'publicProperty set';
+
+	protected $protectedProperty     = 'protectedProperty set';
+
+	private   $privateProperty       = 'privateProperty set';
+
+	public function __get($name)
+	{
+		return '__get "' . $name . '"';
+	}
+
+	public function __set($name, $value)
+	{
+		$this->$name = $value;
+		echo '__set "' . $name . '" to "' . $value . '"';
+	}
+
+	public function __isset($name)
+	{
+		echo '__isset "' . $name . '"';
+		return isset($this->$name);
+	}
+
+	public function getPublicProperty()
+	{
+		return $this->publicProperty;
+	}
+
+	public function setPublicProperty($publicProperty)
+	{
+		$this->publicProperty = $publicProperty;
+	}
+
+	public function unsetProtectedProperty()
+	{
+		unset($this->protectedProperty);
+	}
+
+	public function getProtectedProperty()
+	{
+		return $this->protectedProperty;
+	}
+
+	public function setProtectedProperty($protectedProperty)
+	{
+		$this->protectedProperty = $protectedProperty;
+	}
+
+	public function unsetPrivateProperty()
+	{
+		unset($this->privateProperty);
+	}
+
+	public function getPrivateProperty()
+	{
+		return $this->privateProperty;
+	}
+
+	public function setPrivateProperty($privateProperty)
+	{
+		$this->privateProperty = $privateProperty;
+	}
+}
+
+// verifying public property
+$o = new Test;
+echo $o->publicProperty;
+echo "\n";
+var_export(isset($o->publicProperty));
+echo "\n";
+unset($o->publicProperty);
+isset($o->publicProperty);
+echo "\n";
+echo $o->publicProperty;
+echo "\n";
+echo $o->getPublicProperty();
+echo "\n";
+echo $o->setPublicProperty('new publicProperty value via setter');
+echo "\n";
+echo $o->publicProperty;
+echo "\n";
+unset($o->publicProperty);
+$o->publicProperty = 'new publicProperty value via public access';
+echo "\n";
+var_export(isset($o->publicProperty));
+echo "\n";
+echo $o->publicProperty;
+echo "\n\n";
+
+// verifying protected property
+echo $o->getProtectedProperty();
+echo "\n";
+$o->unsetProtectedProperty();
+var_export(isset($o->protectedProperty));
+echo "\n";
+echo $o->getProtectedProperty();
+echo "\n";
+echo $o->setProtectedProperty('new protectedProperty value via setter');
+echo "\n";
+var_export(isset($o->protectedProperty));
+echo "\n";
+echo $o->getProtectedProperty();
+echo "\n\n";
+
+// verifying private property
+echo $o->getPrivateProperty();
+echo "\n";
+$o->unsetPrivateProperty();
+var_export(isset($o->privateProperty));
+echo "\n";
+echo $o->getPrivateProperty();
+echo "\n";
+echo $o->setPrivateProperty('new privateProperty value via setter');
+echo "\n";
+var_export(isset($o->privateProperty));
+echo "\n";
+echo $o->getPrivateProperty();
+echo "\n\n";
+
+?>
+
+--EXPECTF--
+publicProperty set
+true
+__isset "publicProperty"
+__get "publicProperty"
+__get "publicProperty"
+__set "publicProperty" to "new publicProperty value via setter"
+new publicProperty value via setter
+__set "publicProperty" to "new publicProperty value via public access"
+true
+new publicProperty value via public access
+
+protectedProperty set
+__isset "protectedProperty"__isset "protectedProperty"false
+__get "protectedProperty"
+__set "protectedProperty" to "new protectedProperty value via setter"
+__isset "protectedProperty"true
+new protectedProperty value via setter
+
+privateProperty set
+__isset "privateProperty"__isset "privateProperty"false
+__get "privateProperty"
+__set "privateProperty" to "new privateProperty value via setter"
+__isset "privateProperty"true
+new privateProperty value via setter