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<?php class Gen implements Iterator { private $myArray; public function __construct( $n ) { $this->myArray = range(0,$n-1); } function rewind() { return reset($this->myArray); } function current() { return current($this->myArray); } function key() { return key($this->myArray); } function next() { return next($this->myArray); } function valid() { return key($this->myArray) !== null; } function __destruct(){ echo '<BR>Gen is data drained!'; } } $gen = new Gen(3); // iterable object can be used in foreach foreach ($gen as $g) { echo $gen->current(); // sequentially making data available }
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Deprecated: Return type of Gen::current() should either be compatible with Iterator::current(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/kRKGh on line 12 Deprecated: Return type of Gen::next() should either be compatible with Iterator::next(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/kRKGh on line 18 Deprecated: Return type of Gen::key() should either be compatible with Iterator::key(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/kRKGh on line 15 Deprecated: Return type of Gen::valid() should either be compatible with Iterator::valid(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/kRKGh on line 21 Deprecated: Return type of Gen::rewind() should either be compatible with Iterator::rewind(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/kRKGh on line 9 012<BR>Gen is data drained!
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
012<BR>Gen is data drained!
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting '{' in /in/kRKGh on line 3
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/kRKGh on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'{'' in /in/kRKGh on line 3
Process exited with code 255.
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290.68 ms | 401 KiB | 424 Q