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<?php /** * Behaves like a PHP array (unstructured) */ class Bag implements IteratorAggregate, ArrayAccess { private $__data; // Implementation for ArrayAccess public function offsetSet($offset, $value) { if (is_null($offset)) { $this->__data[] = value; } else { $this->__data[$offset] = $value; } } public function offsetExists($offset) { return isset($this->__data[$offset]); } public function offsetUnset($offset) { unset($this->__data[$offset]); } public function offsetGet($offset) { return isset($this->__data[$offset]) ? $this->__data[$offset] : null; } // Implementation for IteratorAggregate public function getIterator() { return new ArrayIterator($this->__data); } public function __construct(array $data) { $this->data = $data; } public function some(Closure $fn) { return new Bag(array_reduce($this->__data, function ($carry, $x) { return $fn($x) || $carry; }, false)); } public function every(Closure $fn) { return new Bag(array_reduce($this->__data, function ($carry, $x) { return $fn($x) && $carry; }, true)); } public function reduce(Closure $fn) { return new Bag(array_reduce($this->__data, $fn)); } public function map(Closure $fn) { return new Bag(array_map($fn, $this->__data)); } public function filter(Closure $fn) { return new Bag(array_filter($this->__data, $fn)); } } $bag = new Bag([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]); print_r($bag); print_r($bag->filter(function ($x) { return !($x % 2); }));
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Deprecated: Return type of Bag::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/HdKDV on line 37 Deprecated: Return type of Bag::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/HdKDV on line 20 Deprecated: Return type of Bag::offsetGet($offset) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/HdKDV on line 30 Deprecated: Return type of Bag::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/HdKDV on line 11 Deprecated: Return type of Bag::offsetUnset($offset) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/HdKDV on line 25 Deprecated: Creation of dynamic property Bag::$data is deprecated in /in/HdKDV on line 43 Bag Object ( [__data:Bag:private] => [data] => Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 [4] => 5 [5] => 6 [6] => 7 [7] => 8 [8] => 9 [9] => 10 ) ) Fatal error: Uncaught TypeError: array_filter(): Argument #1 ($array) must be of type array, null given in /in/HdKDV:67 Stack trace: #0 /in/HdKDV(67): array_filter(NULL, Object(Closure)) #1 /in/HdKDV(73): Bag->filter(Object(Closure)) #2 {main} thrown in /in/HdKDV on line 67
Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Deprecated: Return type of Bag::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/HdKDV on line 37 Deprecated: Return type of Bag::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/HdKDV on line 20 Deprecated: Return type of Bag::offsetGet($offset) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/HdKDV on line 30 Deprecated: Return type of Bag::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/HdKDV on line 11 Deprecated: Return type of Bag::offsetUnset($offset) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/HdKDV on line 25 Deprecated: Creation of dynamic property Bag::$data is deprecated in /in/HdKDV on line 43 Bag Object ( [__data:Bag:private] => [data] => Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 [4] => 5 [5] => 6 [6] => 7 [7] => 8 [8] => 9 [9] => 10 ) ) Fatal error: Uncaught TypeError: array_filter(): Argument #1 ($array) must be of type array, null given in /in/HdKDV:67 Stack trace: #0 /in/HdKDV(67): array_filter(NULL, Object(Closure)) #1 /in/HdKDV(73): Bag->filter(Object(Closure)) #2 {main} thrown in /in/HdKDV on line 67
Process exited with code 255.
Output for 8.1.0 - 8.1.28
Deprecated: Return type of Bag::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/HdKDV on line 37 Deprecated: Return type of Bag::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/HdKDV on line 20 Deprecated: Return type of Bag::offsetGet($offset) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/HdKDV on line 30 Deprecated: Return type of Bag::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/HdKDV on line 11 Deprecated: Return type of Bag::offsetUnset($offset) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/HdKDV on line 25 Bag Object ( [__data:Bag:private] => [data] => Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 [4] => 5 [5] => 6 [6] => 7 [7] => 8 [8] => 9 [9] => 10 ) ) Fatal error: Uncaught TypeError: array_filter(): Argument #1 ($array) must be of type array, null given in /in/HdKDV:67 Stack trace: #0 /in/HdKDV(67): array_filter(NULL, Object(Closure)) #1 /in/HdKDV(73): Bag->filter(Object(Closure)) #2 {main} thrown in /in/HdKDV on line 67
Process exited with code 255.
Output for 8.0.0 - 8.0.30
Bag Object ( [__data:Bag:private] => [data] => Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 [4] => 5 [5] => 6 [6] => 7 [7] => 8 [8] => 9 [9] => 10 ) ) Fatal error: Uncaught TypeError: array_filter(): Argument #1 ($array) must be of type array, null given in /in/HdKDV:67 Stack trace: #0 /in/HdKDV(67): array_filter(NULL, Object(Closure)) #1 /in/HdKDV(73): Bag->filter(Object(Closure)) #2 {main} thrown in /in/HdKDV on line 67
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Bag Object ( [__data:Bag:private] => [data] => Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 [4] => 5 [5] => 6 [6] => 7 [7] => 8 [8] => 9 [9] => 10 ) ) Warning: array_filter() expects parameter 1 to be array, null given in /in/HdKDV on line 67 Fatal error: Uncaught TypeError: Argument 1 passed to Bag::__construct() must be of the type array, null given, called in /in/HdKDV on line 67 and defined in /in/HdKDV:42 Stack trace: #0 /in/HdKDV(67): Bag->__construct(NULL) #1 /in/HdKDV(73): Bag->filter(Object(Closure)) #2 {main} thrown in /in/HdKDV on line 42
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Bag Object ( [__data:Bag:private] => [data] => Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 [4] => 5 [5] => 6 [6] => 7 [7] => 8 [8] => 9 [9] => 10 ) ) Warning: array_filter() expects parameter 1 to be array, null given in /in/HdKDV on line 67 Catchable fatal error: Argument 1 passed to Bag::__construct() must be of the type array, null given, called in /in/HdKDV on line 67 and defined in /in/HdKDV on line 42
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[', expecting ')' in /in/HdKDV on line 71
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/HdKDV on line 47
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_ARRAY, expecting '&' or T_VARIABLE in /in/HdKDV on line 42
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting '{' in /in/HdKDV on line 6
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting '{' in /in/HdKDV on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'{'' in /in/HdKDV on line 6
Process exited with code 255.
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