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<?php if (class_exists('SplFixedArray')) { return; } /** * The SplFixedArray class provides the main functionalities of array. The * main differences between a SplFixedArray and a normal PHP array is that * the SplFixedArray is of fixed length and allows only integers within * the range as indexes. The advantage is that it allows a faster array * implementation. / class SplFixedArray implements Iterator, ArrayAccess, Countable { /* @var array<int, mixed> / private $internalArray = array(); /* @var int $size / private $size = 0; /* * SplFixedArray constructor. * @param int $size / public function __construct($size = 0) { $this->size = $size; $this->internalArray = array(); } /* * @return int / public function count() { return count($this->internalArray); } /* * @return array / public function toArray() { ksort($this->internalArray); return (array) $this->internalArray; } /* * @param array $array * @param bool $save_indexes * @return SplFixedArray * @psalm-suppress MixedAssignment / public static function fromArray(array $array, $save_indexes = true) { $self = new SplFixedArray(count($array)); if($save_indexes) { foreach($array as $key => $value) { $self[(int) $key] = $value; } } else { $i = 0; foreach (array_values($array) as $value) { $self[$i] = $value; $i++; } } return $self; } /* * @return int / public function getSize() { return $this->size; } /* * @param int $size * @return bool / public function setSize($size) { $this->size = $size; return true; } /* * @param string\|int $index * @return bool / public function offsetExists($index) { return array_key_exists((int) $index, $this->internalArray); } /* * @param string\|int $index * @return mixed / public function offsetGet($index) { /* @psalm-suppress MixedReturnStatement / return $this->internalArray[(int) $index]; } /* * @param string\|int $index * @param mixed $newval * @psalm-suppress MixedAssignment / public function offsetSet($index, $newval) { $this->internalArray[(int) $index] = $newval; } /* * @param string\|int $index / public function offsetUnset($index) { unset($this->internalArray[(int) $index]); } /* * Rewind iterator back to the start * @link https://php.net/manual/en/splfixedarray.rewind.php * @return void * @since 5.3.0 / public function rewind() { reset($this->internalArray); } /* * Return current array entry * @link https://php.net/manual/en/splfixedarray.current.php * @return mixed The current element value. * @since 5.3.0 / public function current() { /* @psalm-suppress MixedReturnStatement / return current($this->internalArray); } /* * Return current array index * @return int The current array index. / public function key() { return key($this->internalArray); } /* * @return void / public function next() { next($this->internalArray); } /* * Check whether the array contains more elements * @link https://php.net/manual/en/splfixedarray.valid.php * @return bool true if the array contains any more elements, false otherwise. / public function valid() { if (empty($this->internalArray)) { return false; } $result = next($this->internalArray) !== false; prev($this->internalArray); return $result; } /* * Do nothing. */ public function __wakeup() { // NOP } }