1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 <?php
/*
* Shameless partial copy of Collection in Laravel framework
* https://github.com/laravel/framework/blob/4.2/src/Illuminate/Support/Collection.php
*/
namespace Gedcomx\Util;
class Collection implements \ArrayAccess, \Countable, \IteratorAggregate
{
protected $items;
/**
* Create a new collection
*
* @param array $items
*/
public function __construct(array $items = array()){
$this->items = $items;
}
/**
* Create new collection instance
*
* @param mixed $items
*
* @return static
*/
public static function make($items)
{
if( $items == null ) return new static;
if( $items instanceof Collection ) return $items;
return new static(is_array($items) ? $items : array($items));
}
/**
* @param mixed $key
* @param mixed $default
*
* @return mixed
*/
public function get($key, $default = null)
{
if ($this->offsetExists($key)) {
return $this->items[$key];
}
return $default;
}
/**
* @param mixed $value
* @param mixed $default
*
* @return mixed
*/
public function getKey($value, $default = null)
{
$needle = array_search($value, $this->items);
return $needle ?: null;
}
/**
* @param mixed $default
*
* @return mixed
*/
public function first($default = null)
{
if (count($this->items) > 0) {
reset($this->items);
return $this->items[0];
}
return $default;
}
/**
* Determine if an item exists in the collection
*
* @param mixed $value
*
* @return bool
*/
public function contains($value){
return in_array($value, $this->items, true);
}
/**
* Execute a callback over each item.
*
* @param \Closure $callback
* @return $this
*/
public function each(\Closure $callback)
{
array_map($callback, $this->items);
return $this;
}
/**
* json_encode the item array
*
* @param int $options
*
* @return string
*/
public function toJson($options = 0)
{
return json_encode($this->toArray(), $options);
}
/**
* (PHP 5 >= 5.0.0)<br/>
* Retrieve an external iterator
* @link http://php.net/manual/en/iteratoraggregate.getiterator.php
* @return Traversable An instance of an object implementing <b>Iterator</b> or
* <b>Traversable</b>
*/
public function getIterator()
{
return new \ArrayIterator($this->items);
}
/**
* (PHP 5 >= 5.0.0)<br/>
* Whether a offset exists
* @link http://php.net/manual/en/arrayaccess.offsetexists.php
*
* @param mixed $offset <p>
* An offset to check for.
* </p>
*
* @return boolean true on success or false on failure.
* </p>
* <p>
* The return value will be casted to boolean if non-boolean was returned.
*/
public function offsetExists($offset)
{
return array_key_exists($offset, $this->items);
}
/**
* (PHP 5 >= 5.0.0)<br/>
* Offset to retrieve
* @link http://php.net/manual/en/arrayaccess.offsetget.php
*
* @param mixed $offset <p>
* The offset to retrieve.
* </p>
*
* @return mixed Can return all value types.
*/
public function offsetGet($offset)
{
return $this->items[$offset];
}
/**
* (PHP 5 >= 5.0.0)<br/>
* Offset to set
* @link http://php.net/manual/en/arrayaccess.offsetset.php
*
* @param mixed $offset <p>
* The offset to assign the value to.
* </p>
* @param mixed $value <p>
* The value to set.
* </p>
*
* @return void
*/
public function offsetSet($offset, $value)
{
if( $offset == null ){
$this->items[] = $value;
} else {
$this->items[$offset] = $value;
}
}
/**
* (PHP 5 >= 5.0.0)<br/>
* Offset to unset
* @link http://php.net/manual/en/arrayaccess.offsetunset.php
*
* @param mixed $offset <p>
* The offset to unset.
* </p>
*
* @return void
*/
public function offsetUnset($offset)
{
unset($this->items[$offset]);
}
/**
* (PHP 5 >= 5.1.0)<br/>
* Count elements of an object
* @link http://php.net/manual/en/countable.count.php
* @return int The custom count as an integer.
* </p>
* <p>
* The return value is cast to an integer.
*/
public function count()
{
return count($this->items);
}
/**
* Get the array representation of an object
*
* @return array
*/
public function toArray()
{
return $this->items;
}
/**
* (PHP 5 >= 5.4.0)<br/>
* Specify data which should be serialized to JSON
* @link http://php.net/manual/en/jsonserializable.jsonserialize.php
* @return mixed data which can be serialized by <b>json_encode</b>,
* which is a value of any type other than a resource.
*/
function jsonSerialize()
{
return $this->toArray();
}
}