320 lines
8.4 KiB
PHP
320 lines
8.4 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\HttpFoundation;
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/**
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* ParameterBag is a container for key/value pairs.
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*
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* @author Fabien Potencier <fabien@symfony.com>
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*
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* @api
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*/
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class ParameterBag implements \IteratorAggregate, \Countable
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{
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/**
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* Parameter storage.
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*
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* @var array
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*/
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protected $parameters;
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/**
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* Constructor.
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*
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* @param array $parameters An array of parameters
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*
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* @api
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*/
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public function __construct(array $parameters = array())
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{
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$this->parameters = $parameters;
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}
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/**
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* Returns the parameters.
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*
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* @return array An array of parameters
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*
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* @api
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*/
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public function all()
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{
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return $this->parameters;
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}
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/**
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* Returns the parameter keys.
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*
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* @return array An array of parameter keys
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*
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* @api
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*/
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public function keys()
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{
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return array_keys($this->parameters);
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}
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/**
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* Replaces the current parameters by a new set.
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*
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* @param array $parameters An array of parameters
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*
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* @api
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*/
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public function replace(array $parameters = array())
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{
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$this->parameters = $parameters;
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}
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/**
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* Adds parameters.
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*
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* @param array $parameters An array of parameters
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*
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* @api
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*/
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public function add(array $parameters = array())
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{
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$this->parameters = array_replace($this->parameters, $parameters);
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}
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/**
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* Returns a parameter by name.
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*
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* @param string $path The key
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* @param mixed $default The default value if the parameter key does not exist
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* @param bool $deep If true, a path like foo[bar] will find deeper items
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*
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* @return mixed
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*
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* @throws \InvalidArgumentException
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*
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* @api
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*/
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public function get($path, $default = null, $deep = false)
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{
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if (!$deep || false === $pos = strpos($path, '[')) {
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return array_key_exists($path, $this->parameters) ? $this->parameters[$path] : $default;
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}
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$root = substr($path, 0, $pos);
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if (!array_key_exists($root, $this->parameters)) {
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return $default;
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}
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$value = $this->parameters[$root];
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$currentKey = null;
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for ($i = $pos, $c = strlen($path); $i < $c; ++$i) {
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$char = $path[$i];
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if ('[' === $char) {
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if (null !== $currentKey) {
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throw new \InvalidArgumentException(sprintf('Malformed path. Unexpected "[" at position %d.', $i));
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}
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$currentKey = '';
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} elseif (']' === $char) {
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if (null === $currentKey) {
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throw new \InvalidArgumentException(sprintf('Malformed path. Unexpected "]" at position %d.', $i));
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}
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if (!is_array($value) || !array_key_exists($currentKey, $value)) {
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return $default;
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}
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$value = $value[$currentKey];
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$currentKey = null;
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} else {
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if (null === $currentKey) {
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throw new \InvalidArgumentException(sprintf('Malformed path. Unexpected "%s" at position %d.', $char, $i));
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}
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$currentKey .= $char;
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}
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}
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if (null !== $currentKey) {
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throw new \InvalidArgumentException(sprintf('Malformed path. Path must end with "]".'));
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}
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return $value;
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}
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/**
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* Sets a parameter by name.
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*
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* @param string $key The key
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* @param mixed $value The value
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*
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* @api
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*/
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public function set($key, $value)
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{
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$this->parameters[$key] = $value;
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}
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/**
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* Returns true if the parameter is defined.
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*
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* @param string $key The key
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*
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* @return bool true if the parameter exists, false otherwise
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*
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* @api
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*/
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public function has($key)
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{
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return array_key_exists($key, $this->parameters);
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}
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/**
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* Removes a parameter.
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*
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* @param string $key The key
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*
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* @api
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*/
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public function remove($key)
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{
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unset($this->parameters[$key]);
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}
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/**
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* Returns the alphabetic characters of the parameter value.
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*
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* @param string $key The parameter key
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* @param mixed $default The default value if the parameter key does not exist
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* @param bool $deep If true, a path like foo[bar] will find deeper items
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*
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* @return string The filtered value
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*
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* @api
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*/
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public function getAlpha($key, $default = '', $deep = false)
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{
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return preg_replace('/[^[:alpha:]]/', '', $this->get($key, $default, $deep));
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}
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/**
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* Returns the alphabetic characters and digits of the parameter value.
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*
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* @param string $key The parameter key
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* @param mixed $default The default value if the parameter key does not exist
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* @param bool $deep If true, a path like foo[bar] will find deeper items
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*
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* @return string The filtered value
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*
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* @api
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*/
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public function getAlnum($key, $default = '', $deep = false)
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{
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return preg_replace('/[^[:alnum:]]/', '', $this->get($key, $default, $deep));
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}
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/**
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* Returns the digits of the parameter value.
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*
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* @param string $key The parameter key
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* @param mixed $default The default value if the parameter key does not exist
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* @param bool $deep If true, a path like foo[bar] will find deeper items
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*
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* @return string The filtered value
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*
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* @api
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*/
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public function getDigits($key, $default = '', $deep = false)
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{
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// we need to remove - and + because they're allowed in the filter
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return str_replace(array('-', '+'), '', $this->filter($key, $default, $deep, FILTER_SANITIZE_NUMBER_INT));
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}
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/**
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* Returns the parameter value converted to integer.
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*
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* @param string $key The parameter key
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* @param mixed $default The default value if the parameter key does not exist
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* @param bool $deep If true, a path like foo[bar] will find deeper items
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*
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* @return int The filtered value
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*
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* @api
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*/
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public function getInt($key, $default = 0, $deep = false)
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{
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return (int) $this->get($key, $default, $deep);
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}
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/**
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* Returns the parameter value converted to boolean.
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*
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* @param string $key The parameter key
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* @param mixed $default The default value if the parameter key does not exist
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* @param bool $deep If true, a path like foo[bar] will find deeper items
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*
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* @return bool The filtered value
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*/
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public function getBoolean($key, $default = false, $deep = false)
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{
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return $this->filter($key, $default, $deep, FILTER_VALIDATE_BOOLEAN);
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}
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/**
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* Filter key.
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*
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* @param string $key Key.
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* @param mixed $default Default = null.
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* @param bool $deep Default = false.
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* @param int $filter FILTER_* constant.
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* @param mixed $options Filter options.
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*
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* @see http://php.net/manual/en/function.filter-var.php
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*
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* @return mixed
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*/
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public function filter($key, $default = null, $deep = false, $filter = FILTER_DEFAULT, $options = array())
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{
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$value = $this->get($key, $default, $deep);
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// Always turn $options into an array - this allows filter_var option shortcuts.
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if (!is_array($options) && $options) {
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$options = array('flags' => $options);
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}
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// Add a convenience check for arrays.
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if (is_array($value) && !isset($options['flags'])) {
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$options['flags'] = FILTER_REQUIRE_ARRAY;
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}
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return filter_var($value, $filter, $options);
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}
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/**
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* Returns an iterator for parameters.
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*
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* @return \ArrayIterator An \ArrayIterator instance
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*/
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public function getIterator()
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{
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return new \ArrayIterator($this->parameters);
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}
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/**
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* Returns the number of parameters.
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*
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* @return int The number of parameters
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*/
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public function count()
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{
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return count($this->parameters);
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}
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}
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