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1 <?php |
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2 /** |
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3 * Case-insensitive dictionary, suitable for HTTP headers |
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4 * |
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5 * @package Requests |
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6 * @subpackage Utilities |
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7 */ |
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8 |
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9 /** |
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10 * Case-insensitive dictionary, suitable for HTTP headers |
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11 * |
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12 * @package Requests |
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13 * @subpackage Utilities |
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14 */ |
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15 class Requests_Utility_CaseInsensitiveDictionary implements ArrayAccess, IteratorAggregate { |
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16 /** |
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17 * Actual item data |
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18 * |
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19 * @var array |
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20 */ |
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21 protected $data = array(); |
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22 |
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23 /** |
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24 * Creates a case insensitive dictionary. |
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25 * |
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26 * @param array $data Dictionary/map to convert to case-insensitive |
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27 */ |
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28 public function __construct(array $data = array()) { |
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29 foreach ($data as $key => $value) { |
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30 $this->offsetSet($key, $value); |
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31 } |
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32 } |
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33 |
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34 /** |
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35 * Check if the given item exists |
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36 * |
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37 * @param string $key Item key |
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38 * @return boolean Does the item exist? |
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39 */ |
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40 public function offsetExists($key) { |
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41 $key = strtolower($key); |
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42 return isset($this->data[$key]); |
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43 } |
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44 |
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45 /** |
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46 * Get the value for the item |
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47 * |
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48 * @param string $key Item key |
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49 * @return string Item value |
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50 */ |
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51 public function offsetGet($key) { |
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52 $key = strtolower($key); |
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53 if (!isset($this->data[$key])) { |
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54 return null; |
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55 } |
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56 |
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57 return $this->data[$key]; |
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58 } |
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59 |
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60 /** |
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61 * Set the given item |
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62 * |
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63 * @throws Requests_Exception On attempting to use dictionary as list (`invalidset`) |
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64 * |
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65 * @param string $key Item name |
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66 * @param string $value Item value |
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67 */ |
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68 public function offsetSet($key, $value) { |
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69 if ($key === null) { |
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70 throw new Requests_Exception('Object is a dictionary, not a list', 'invalidset'); |
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71 } |
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72 |
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73 $key = strtolower($key); |
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74 $this->data[$key] = $value; |
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75 } |
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76 |
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77 /** |
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78 * Unset the given header |
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79 * |
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80 * @param string $key |
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81 */ |
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82 public function offsetUnset($key) { |
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83 unset($this->data[strtolower($key)]); |
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84 } |
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85 |
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86 /** |
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87 * Get an iterator for the data |
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88 * |
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89 * @return ArrayIterator |
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90 */ |
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91 public function getIterator() { |
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92 return new ArrayIterator($this->data); |
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93 } |
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94 |
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95 /** |
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96 * Get the headers as an array |
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97 * |
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98 * @return array Header data |
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99 */ |
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100 public function getAll() { |
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101 return $this->data; |
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102 } |
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103 } |