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<?php class MyIterator implements Iterator { private $var = array(1,2,3); private $current; private $key; public function __construct($array = null) { if (is_array($array)) { $this->var = $array; } } public function __set($name, $value) { return $this->var[$name] = $value; } public function __get($name) { if ($this->var[$name]) { return $this->var[$name]; } if ($name == 'test') { $class = get_called_class(); return $this->var[$name] = (new $class())->$name(); } } public function many() { $a = array(88,99,11); return $a[$this->key]; } 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); $this->key = $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 PHP_EOL . $it->test . PHP_EOL . PHP_EOL; print "$a: $b\n"; }
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
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/RQeHD on line 47 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/RQeHD on line 63 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/RQeHD on line 55 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/RQeHD on line 70 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/RQeHD on line 41 rewinding valid: 1 current: 1 key: 0 Warning: Undefined array key "test" in /in/RQeHD on line 23 Warning: Undefined array key "" in /in/RQeHD on line 37 0: 1 next: 2 valid: 1 current: 2 key: 1 Warning: Undefined array key "" in /in/RQeHD on line 37 1: 2 next: 3 valid: 1 current: 3 key: 2 Warning: Undefined array key "" in /in/RQeHD on line 37 2: 3 next: valid: 1 current: key: test Warning: Undefined array key "" in /in/RQeHD on line 37 test: next: valid:
Output for 8.0.0 - 8.0.30
rewinding valid: 1 current: 1 key: 0 Warning: Undefined array key "test" in /in/RQeHD on line 23 Warning: Undefined array key "" in /in/RQeHD on line 37 0: 1 next: 2 valid: 1 current: 2 key: 1 Warning: Undefined array key "" in /in/RQeHD on line 37 1: 2 next: 3 valid: 1 current: 3 key: 2 Warning: Undefined array key "" in /in/RQeHD on line 37 2: 3 next: valid: 1 current: key: test Warning: Undefined array key "" in /in/RQeHD on line 37 test: next: valid:
Output for 7.0.0 - 7.0.31, 7.1.0 - 7.1.21, 7.2.0 - 7.2.33, 7.3.16 - 7.3.31, 7.4.0 - 7.4.33
rewinding valid: 1 current: 1 key: 0 Notice: Undefined index: test in /in/RQeHD on line 23 Notice: Undefined index: in /in/RQeHD on line 37 0: 1 next: 2 valid: 1 current: 2 key: 1 Notice: Undefined index: in /in/RQeHD on line 37 1: 2 next: 3 valid: 1 current: 3 key: 2 Notice: Undefined index: in /in/RQeHD on line 37 2: 3 next: valid: 1 current: key: test Notice: Undefined index: in /in/RQeHD on line 37 test: next: valid:
Output for 7.3.32 - 7.3.33
rewinding valid: 1 current: 1 key: 0 0: 1 next: 2 valid: 1 current: 2 key: 1 1: 2 next: 3 valid: 1 current: 3 key: 2 2: 3 next: valid: 1 current: key: test test: next: valid:
preferences:
175.46 ms | 401 KiB | 205 Q