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<?php

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declare (strict_types=1);

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namespace YoastSEO_Vendor\GuzzleHttp\Psr7;

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final class Query

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{

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/**

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* Parse a query string into an associative array.

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* If multiple values are found for the same key, the value of that key

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* value pair will become an array. This function does not parse nested

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* PHP style arrays into an associative array (e.g., `foo[a]=1&foo[b]=2`

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* will be parsed into `['foo[a]' => '1', 'foo[b]' => '2'])`.

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* @param string $str Query string to parse

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* @param int|bool $urlEncoding How the query string is encoded

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public static function parse(string $str, $urlEncoding = \true) : array

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{

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$result = [];

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if ($str === '') {

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return $result;

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}

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if ($urlEncoding === \true) {

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$decoder = function ($value) {

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return \rawurldecode(\str_replace('+', ' ', (string) $value));

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};

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} elseif ($urlEncoding === \PHP_QUERY_RFC3986) {

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$decoder = 'rawurldecode';

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} elseif ($urlEncoding === \PHP_QUERY_RFC1738) {

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$decoder = 'urldecode';

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} else {

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$decoder = function ($str) {

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return $str;

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};

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}

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foreach (\explode('&', $str) as $kvp) {

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$parts = \explode('=', $kvp, 2);

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$key = $decoder($parts[0]);

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$value = isset($parts[1]) ? $decoder($parts[1]) : null;

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if (!\array_key_exists($key, $result)) {

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$result[$key] = $value;

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} else {

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if (!\is_array($result[$key])) {

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$result[$key] = [$result[$key]];

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}

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$result[$key][] = $value;

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}

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}

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return $result;

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}

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/**

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* Build a query string from an array of key value pairs.

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* This function can use the return value of `parse()` to build a query

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* string. This function does not modify the provided keys when an array is

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* encountered (like `http_build_query()` would).

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* @param array $params Query string parameters.

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* @param int|false $encoding Set to false to not encode, PHP_QUERY_RFC3986

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* to encode using RFC3986, or PHP_QUERY_RFC1738

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* to encode using RFC1738.

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public static function build(array $params, $encoding = \PHP_QUERY_RFC3986) : string

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{

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if (!$params) {

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return '';

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}

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if ($encoding === \false) {

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$encoder = function (string $str) : string {

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return $str;

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};

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} elseif ($encoding === \PHP_QUERY_RFC3986) {

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$encoder = 'rawurlencode';

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} elseif ($encoding === \PHP_QUERY_RFC1738) {

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$encoder = 'urlencode';

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} else {

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throw new \InvalidArgumentException('Invalid type');

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}

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$qs = '';

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foreach ($params as $k => $v) {

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$k = $encoder((string) $k);

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if (!\is_array($v)) {

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$qs .= $k;

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$v = \is_bool($v) ? (int) $v : $v;

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if ($v !== null) {

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$qs .= '=' . $encoder((string) $v);

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}

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$qs .= '&';

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} else {

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foreach ($v as $vv) {

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$qs .= $k;

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$vv = \is_bool($vv) ? (int) $vv : $vv;

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if ($vv !== null) {

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$qs .= '=' . $encoder((string) $vv);

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}

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$qs .= '&';

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}

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}

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}

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return $qs ? (string) \substr($qs, 0, -1) : '';

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}

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}

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