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<?php |
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namespace Iriven\Plugins\Form\Core\Libs; |
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class Collection 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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protected $parameters; |
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/** |
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* @param array $parameters An array of parameters |
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*/ |
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public function __construct(array $parameters = []) |
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{ |
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$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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public function all() |
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{ |
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return $this->parameters; |
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} |
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/** |
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* Clears all parameters. |
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* |
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*/ |
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public function clear() |
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{ |
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$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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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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public function replace(array $parameters = []) |
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{ |
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$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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public function add(array $parameters = []) |
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{ |
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$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 $key The key |
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* @param mixed $default The default value if the parameter key does not exist |
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* |
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* @return mixed |
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*/ |
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public function get($key, $default = null) |
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{ |
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return array_key_exists($key, $this->parameters) ? $this->parameters[$key] : $default; |
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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 $value The value |
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*/ |
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public function set($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 $key The key |
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* |
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* @return bool true if the parameter exists, false otherwise |
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*/ |
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public function has($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 $key The key |
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*/ |
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public function remove($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 string $default The default value if the parameter key does not exist |
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* |
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* @return string The filtered value |
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*/ |
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public function getAlpha($key, $default = '') |
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{ |
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return preg_replace('/[^[:alpha:]]/', '', $this->get($key, $default)); |
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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 string $default The default value if the parameter key does not exist |
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* |
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* @return string The filtered value |
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*/ |
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public function getAlnum($key, $default = '') |
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{ |
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return preg_replace('/[^[:alnum:]]/', '', $this->get($key, $default)); |
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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 string $default The default value if the parameter key does not exist |
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* |
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* @return string The filtered value |
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*/ |
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public function getDigits($key, $default = '') |
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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, 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 int $default The default value if the parameter key does not exist |
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* |
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* @return int The filtered value |
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*/ |
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public function getInt($key, $default = 0) |
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{ |
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return (int) $this->get($key, $default); |
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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 $default The default value if the parameter key does not exist |
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* |
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* @return bool The filtered value |
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*/ |
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public function getBoolean($key, $default = false) |
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{ |
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return $this->filter($key, $default, 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 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, $filter = FILTER_DEFAULT, $options = []) |
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{ |
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$value = $this->get($key, $default); |
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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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* See if a parameter exists in the collection |
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* |
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* @param string $key The name of the parameter |
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* @return boolean |
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*/ |
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public function exists($key) |
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{ |
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// Don't use "isset", since it returns false for null values |
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return $this->has($key); |
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} |
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} |