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<?php class obj implements arrayaccess { private $container = array(); public function __construct() { $this->container = array( "one" => 1, "two" => 2, "three" => 3, ); } public function offsetSet($offset, $value) { if (is_null($offset)) { $this->container[] = $value; } else { $this->container[$offset] = $value; } } public function offsetExists($offset) { return isset($this->container[$offset]); } public function offsetUnset($offset) { unset($this->container[$offset]); } public function offsetGet($offset) { return isset($this->container[$offset]) ? $this->container[$offset] : null; } } $obj = new obj; var_dump(isset($obj["two"])); var_dump($obj["two"]); unset($obj["two"]); var_dump(isset($obj["two"])); $obj["two"] = "A value"; var_dump($obj["two"]); $obj[] = 'Append 1'; $obj[] = 'Append 2'; $obj[] = 'Append 3'; print_r($obj);
Output for 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Deprecated: Return type of obj::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/E2pCY on line 20 Deprecated: Return type of obj::offsetGet($offset) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/E2pCY on line 26 Deprecated: Return type of obj::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/E2pCY on line 13 Deprecated: Return type of obj::offsetUnset($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/E2pCY on line 23 bool(true) int(2) bool(false) string(7) "A value" obj Object ( [container:obj:private] => Array ( [one] => 1 [three] => 3 [two] => A value [0] => Append 1 [1] => Append 2 [2] => Append 3 ) )
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
bool(true) int(2) bool(false) string(7) "A value" obj Object ( [container:obj:private] => Array ( [one] => 1 [three] => 3 [two] => A value [0] => Append 1 [1] => Append 2 [2] => Append 3 ) )
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
bool(true) int(2) bool(false) string(7) "A value" obj Object ( [container:private] => Array ( [one] => 1 [three] => 3 [two] => A value [0] => Append 1 [1] => Append 2 [2] => Append 3 ) )
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting '{' in /in/E2pCY on line 4
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/E2pCY on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'{'' in /in/E2pCY on line 4
Process exited with code 255.

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