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<?php class MyIterator implements Iterator { private $var = array(1,2,3); private $current; public function __construct($array = null) { if (is_array($array)) { $this->var = $array; } } public function many() { $a = array(88,99,11); return $a[$this->current]; } public function rewind() { echo "rewinding\n"; reset($this->var); } public function current() { $var = current($this->var); $this->current = $var; echo "current: $var\n"; return $var; } public function key() { $var = key($this->var); echo "key: $var\n"; return $var; } public function next() { $var = next($this->var); echo "next: $var\n"; return $var; } public function valid() { $key = key($this->var); $var = ($key !== NULL && $key !== FALSE); echo "valid: $var\n"; return $var; } } class foo extends MyIterator{ public function test(){ return $this->many(); } } $it = new foo(); foreach ($it as $a => $b) { echo $it->many() . PHP_EOL; print "$a: $b\n"; }
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Deprecated: Return type of MyIterator::current() should either be compatible with Iterator::current(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/hkQn8 on line 29 Deprecated: Return type of MyIterator::next() should either be compatible with Iterator::next(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/hkQn8 on line 44 Deprecated: Return type of MyIterator::key() should either be compatible with Iterator::key(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/hkQn8 on line 37 Deprecated: Return type of MyIterator::valid() should either be compatible with Iterator::valid(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/hkQn8 on line 51 Deprecated: Return type of MyIterator::rewind() should either be compatible with Iterator::rewind(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/hkQn8 on line 23 rewinding valid: 1 current: 1 key: 0 99 0: 1 next: 2 valid: 1 current: 2 key: 1 11 1: 2 next: 3 valid: 1 current: 3 key: 2 Warning: Undefined array key 3 in /in/hkQn8 on line 19 2: 3 next: valid:
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 MyIterator::current() should either be compatible with Iterator::current(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/hkQn8 on line 29 Deprecated: Return type of MyIterator::next() should either be compatible with Iterator::next(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/hkQn8 on line 44 Deprecated: Return type of MyIterator::key() should either be compatible with Iterator::key(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/hkQn8 on line 37 Deprecated: Return type of MyIterator::valid() should either be compatible with Iterator::valid(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/hkQn8 on line 51 Deprecated: Return type of MyIterator::rewind() should either be compatible with Iterator::rewind(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/hkQn8 on line 23 rewinding valid: 1 current: 1 key: 0 99 0: 1 next: 2 valid: 1 current: 2 key: 1 11 1: 2 next: 3 valid: 1 current: 3 key: 2 Warning: Undefined array key 3 in /in/hkQn8 on line 19 2: 3 next: valid:
Output for 8.0.0 - 8.0.30
rewinding valid: 1 current: 1 key: 0 99 0: 1 next: 2 valid: 1 current: 2 key: 1 11 1: 2 next: 3 valid: 1 current: 3 key: 2 Warning: Undefined array key 3 in /in/hkQn8 on line 19 2: 3 next: valid:
Output for 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
rewinding valid: 1 current: 1 key: 0 99 0: 1 next: 2 valid: 1 current: 2 key: 1 11 1: 2 next: 3 valid: 1 current: 3 key: 2 Notice: Undefined offset: 3 in /in/hkQn8 on line 19 2: 3 next: valid:
Output for 7.3.32 - 7.3.33
rewinding valid: 1 current: 1 key: 0 99 0: 1 next: 2 valid: 1 current: 2 key: 1 11 1: 2 next: 3 valid: 1 current: 3 key: 2 2: 3 next: valid:
preferences:
185.91 ms | 401 KiB | 217 Q