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<?php $a = [0,1,2,null,3]; foreach($a as $k => $v){ echo $v; } echo "\n"; class Test implements Iterator { private $p = 0; private $a = [0,1,2,null,3]; public function __construct() { array_unshift( $this->a, 8 ); } function rewind() { $this->p = 0; } function current() { return $this->a[$this->p]; } function key() { return $this->p; } function next() { ++$this->p; } function valid() { return isset( $this->a[$this->p] ); } } $it = new Test; foreach($it as $k => $v) { echo $v; } ?>
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
0123 Deprecated: Return type of Test::current() should either be compatible with Iterator::current(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/jSlB9 on line 21 Deprecated: Return type of Test::next() should either be compatible with Iterator::next(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/jSlB9 on line 29 Deprecated: Return type of Test::key() should either be compatible with Iterator::key(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/jSlB9 on line 25 Deprecated: Return type of Test::valid() should either be compatible with Iterator::valid(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/jSlB9 on line 33 Deprecated: Return type of Test::rewind() should either be compatible with Iterator::rewind(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/jSlB9 on line 17 8012
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 0123 Deprecated: Return type of Test::current() should either be compatible with Iterator::current(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/jSlB9 on line 21 Deprecated: Return type of Test::next() should either be compatible with Iterator::next(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/jSlB9 on line 29 Deprecated: Return type of Test::key() should either be compatible with Iterator::key(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/jSlB9 on line 25 Deprecated: Return type of Test::valid() should either be compatible with Iterator::valid(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/jSlB9 on line 33 Deprecated: Return type of Test::rewind() should either be compatible with Iterator::rewind(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/jSlB9 on line 17 8012
Output for 5.6.0 - 5.6.40, 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, 8.0.0 - 8.0.30
0123 8012
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