Source for file data.php
Documentation is available at data.php
* @package Joomla.Platform
* @copyright Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE
* JData is a class that is used to store data but allowing you to access the data
* by mimicking the way PHP handles class properties.
* @package Joomla.Platform
class JData implements JDataDumpable, IteratorAggregate, JsonSerializable, Countable
private $_properties =
array();
* @param mixed $properties Either an associative array or another object
* by which to set the initial properties of the new object.
* @throws InvalidArgumentException
// Check the properties input.
$this->bind($properties);
* The magic get method is used to get a data property.
* This method is a public proxy for the protected getProperty method.
* Note: Magic __get does not allow recursive calls. This can be tricky because the error generated by recursing into
* __get is "Undefined property: {CLASS}::{PROPERTY}" which is misleading. This is relevant for this class because
* requesting a non-visible property can trigger a call to a sub-function. If that references the property directly in
* the object, it will cause a recursion into __get.
* @param string $property The name of the data property.
* @return mixed The value of the data property, or null if the data property does not exist.
* @see JData::getProperty()
public function __get($property)
* The magic isset method is used to check the state of an object property.
* @param string $property The name of the data property.
* @return boolean True if set, otherwise false is returned.
return isset
($this->_properties[$property]);
* The magic set method is used to set a data property.
* This is a public proxy for the protected setProperty method.
* @param string $property The name of the data property.
* @param mixed $value The value to give the data property.
* @see JData::setProperty()
public function __set($property, $value)
* The magic unset method is used to unset a data property.
* @param string $property The name of the data property.
unset
($this->_properties[$property]);
* Binds an array or object to this object.
* @param mixed $properties An associative array of properties or an object.
* @param boolean $updateNulls True to bind null values, false to ignore null values.
* @return JData Returns itself to allow chaining.
* @throws InvalidArgumentException
public function bind($properties, $updateNulls =
true)
// Check the properties data type.
throw
new InvalidArgumentException(sprintf('%s(%s)', __METHOD__
, gettype($properties)));
// Check if the object is traversable.
if ($properties instanceof
Traversable)
// Convert iterator to array.
// Check if the object needs to be converted to an array.
// Convert properties to an array.
$properties = (array)
$properties;
foreach ($properties as $property =>
$value)
// Check if the value is null and should be bound.
if ($value ===
null &&
!$updateNulls)
* Dumps the data properties into a stdClass object, recursively if appropriate.
* @param integer $depth The maximum depth of recursion (default = 3).
* For example, a depth of 0 will return a stdClass with all the properties in native
* form. A depth of 1 will recurse into the first level of properties only.
* @param SplObjectStorage $dumped An array of already serialized objects that is used to avoid infinite loops.
* @return stdClass The data properties as a simple PHP stdClass object.
public function dump($depth =
3, SplObjectStorage $dumped =
null)
// Check if we should initialise the recursion tracker.
$dumped =
new SplObjectStorage;
// Add this object to the dumped stack.
// Dump all object properties.
foreach (array_keys($this->_properties) as $property)
$dump->$property =
$this->dumpProperty($property, $depth, $dumped);
* Gets this object represented as an ArrayIterator.
* This allows the data properties to be access via a foreach statement.
* @return ArrayIterator This object represented as an ArrayIterator.
* @see IteratorAggregate::getIterator()
return new ArrayIterator($this->dump(0));
* Gets the data properties in a form that can be serialised to JSON format.
* @return string An object that can be serialised by json_encode().
* If recursion is set, this method will dump any object implementing JDumpable (like JData and JDataSet); it will
* convert a JDate object to a string; and it will convert a JRegistry to an object.
* @param string $property The name of the data property.
* @param integer $depth The current depth of recursion (a value of 0 will ignore recursion).
* @param SplObjectStorage $dumped An array of already serialized objects that is used to avoid infinite loops.
* @return mixed The value of the dumped property.
protected function dumpProperty($property, $depth, SplObjectStorage $dumped)
// Check if the object is also an dumpable object.
// Do not dump the property if it has already been dumped.
if (!$dumped->contains($value))
$value =
$value->dump($depth -
1, $dumped);
// Check if the object is a date.
if ($value instanceof
JDate)
$value = (string)
$value;
// Check if the object is a registry.
$value =
$value->toObject();
* @param string $property The name of the data property.
* @return mixed The value of the data property.
$value =
array_key_exists($property, $this->_properties) ?
$this->_properties[$property] :
null;
* If the name of the property starts with a null byte, this method will return null.
* @param string $property The name of the data property.
* @param mixed $value The value to give the data property.
* @return mixed The value of the data property.
* Check if the property starts with a null byte. If so, discard it because a later attempt to try to access it
* can cause a fatal error. See http://us3.php.net/manual/en/language.types.array.php#language.types.array.casting
if (strpos($property, "\0") ===
0)
$this->_properties[$property] =
$value;
* Count the number of data properties.
* @return integer The number of data properties.
return count($this->_properties);
Documentation generated on Tue, 19 Nov 2013 14:57:46 +0100 by phpDocumentor 1.4.3