forked from Wavyzz/dolibarr
63 lines
1.6 KiB
PHP
63 lines
1.6 KiB
PHP
<?php
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namespace Stripe\Util;
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use ArrayAccess;
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/**
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* CaseInsensitiveArray is an array-like class that ignores case for keys.
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*
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* It is used to store HTTP headers. Per RFC 2616, section 4.2:
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* Each header field consists of a name followed by a colon (":") and the field value. Field names
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* are case-insensitive.
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*
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* In the context of stripe-php, this is useful because the API will return headers with different
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* case depending on whether HTTP/2 is used or not (with HTTP/2, headers are always in lowercase).
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*/
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class CaseInsensitiveArray implements ArrayAccess
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{
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private $container = array();
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public function __construct($initial_array = array())
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{
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$this->container = array_map("strtolower", $initial_array);
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}
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public function offsetSet($offset, $value)
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{
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$offset = static::maybeLowercase($offset);
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if (is_null($offset)) {
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$this->container[] = $value;
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} else {
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$this->container[$offset] = $value;
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}
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}
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public function offsetExists($offset)
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{
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$offset = static::maybeLowercase($offset);
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return isset($this->container[$offset]);
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}
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public function offsetUnset($offset)
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{
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$offset = static::maybeLowercase($offset);
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unset($this->container[$offset]);
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}
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public function offsetGet($offset)
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{
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$offset = static::maybeLowercase($offset);
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return isset($this->container[$offset]) ? $this->container[$offset] : null;
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}
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private static function maybeLowercase($v)
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{
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if (is_string($v)) {
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return strtolower($v);
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} else {
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return $v;
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}
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}
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}
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