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Editing: Headers.php
<?php /** * Case-insensitive dictionary, suitable for HTTP headers * * @package Requests */ namespace WpOrg\Requests\Response; use WpOrg\Requests\Exception; use WpOrg\Requests\Exception\InvalidArgument; use WpOrg\Requests\Utility\CaseInsensitiveDictionary; use WpOrg\Requests\Utility\FilteredIterator; /** * Case-insensitive dictionary, suitable for HTTP headers * * @package Requests */ class Headers extends CaseInsensitiveDictionary { /** * Get the given header * * Unlike {@see \WpOrg\Requests\Response\Headers::getValues()}, this returns a string. If there are * multiple values, it concatenates them with a comma as per RFC2616. * * Avoid using this where commas may be used unquoted in values, such as * Set-Cookie headers. * * @param string $offset Name of the header to retrieve. * @return string|null Header value */ public function offsetGet($offset) { if (is_string($offset)) { $offset = strtolower($offset); } if (!isset($this->data[$offset])) { return null; } return $this->flatten($this->data[$offset]); } /** * Set the given item * * @param string $offset Item name * @param string $value Item value * * @throws \WpOrg\Requests\Exception On attempting to use dictionary as list (`invalidset`) */ public function offsetSet($offset, $value) { if ($offset === null) { throw new Exception('Object is a dictionary, not a list', 'invalidset'); } if (is_string($offset)) { $offset = strtolower($offset); } if (!isset($this->data[$offset])) { $this->data[$offset] = []; } $this->data[$offset][] = $value; } /** * Get all values for a given header * * @param string $offset Name of the header to retrieve. * @return array|null Header values * * @throws \WpOrg\Requests\Exception\InvalidArgument When the passed argument is not valid as an array key. */ public function getValues($offset) { if (!is_string($offset) && !is_int($offset)) { throw InvalidArgument::create(1, '$offset', 'string|int', gettype($offset)); } if (is_string($offset)) { $offset = strtolower($offset); } if (!isset($this->data[$offset])) { return null; } return $this->data[$offset]; } /** * Flattens a value into a string * * Converts an array into a string by imploding values with a comma, as per * RFC2616's rules for folding headers. * * @param string|array $value Value to flatten * @return string Flattened value * * @throws \WpOrg\Requests\Exception\InvalidArgument When the passed argument is not a string or an array. */ public function flatten($value) { if (is_string($value)) { return $value; } if (is_array($value)) { return implode(',', $value); } throw InvalidArgument::create(1, '$value', 'string|array', gettype($value)); } /** * Get an iterator for the data * * Converts the internally stored values to a comma-separated string if there is more * than one value for a key. * * @return \ArrayIterator */ public function getIterator() { return new FilteredIterator($this->data, [$this, 'flatten']); } }
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