3v4l.org

run code in 300+ PHP versions simultaneously
<?php class MyIterator implements Iterator { private $var = array(); public function __construct($array) { if (is_array($array)) { $this->var = $array; } } public function rewind() { echo "rewinding\n"; reset($this->var); } public function current() { $var = current($this->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_dump($this->valid()); return $var; } } $values = array(1,2,3); $it = new MyIterator($values); foreach ($it as $a => $b) { print "$a: $b\n"; } ?>
Output for 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
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/XrJ1H on line 19 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/XrJ1H on line 33 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/XrJ1H on line 26 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/XrJ1H on line 40 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/XrJ1H on line 13 rewinding Fatal error: Out of memory (allocated 31457280 bytes) (tried to allocate 262144 bytes) in /in/XrJ1H on line 44 mmap() failed: [12] Cannot allocate memory mmap() failed: [12] Cannot allocate memory
Process exited with code 255.
Output for 8.1.2 - 8.1.27
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/XrJ1H on line 19 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/XrJ1H on line 33 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/XrJ1H on line 26 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/XrJ1H on line 40 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/XrJ1H on line 13 rewinding Fatal error: Out of memory (allocated 31457280) (tried to allocate 262144 bytes) in /in/XrJ1H on line 44 mmap() failed: [12] Cannot allocate memory mmap() failed: [12] Cannot allocate memory
Process exited with code 255.
Output for 8.1.0 - 8.1.1
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/XrJ1H on line 19 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/XrJ1H on line 33 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/XrJ1H on line 26 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/XrJ1H on line 40 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/XrJ1H on line 13 rewinding Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 262144 bytes) in /in/XrJ1H on line 44
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33, 8.0.0 - 8.0.12, 8.0.14 - 8.0.30
rewinding Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 262144 bytes) in /in/XrJ1H on line 44
Process exited with code 255.
Output for 7.4.26, 8.0.13
rewinding Fatal error: Out of memory (allocated 130023424) (tried to allocate 262144 bytes) in /in/XrJ1H on line 44 mmap() failed: [12] Cannot allocate memory mmap() failed: [12] Cannot allocate memory
Process exited with code 255.
Output for 7.3.32 - 7.3.33
rewinding Fatal error: Out of memory (allocated 130023424) (tried to allocate 262144 bytes) in /in/XrJ1H on line 42 mmap() failed: [12] Cannot allocate memory mmap() failed: [12] Cannot allocate memory
Process exited with code 255.
Output for 7.1.0 - 7.1.7, 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.31
rewinding Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 262144 bytes) in /in/XrJ1H on line 42
Process exited with code 255.
Output for 7.1.10
rewinding
Process exited with code 137.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.36, 5.6.0 - 5.6.28
rewinding Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 130968 bytes) in /in/XrJ1H on line 44
Process exited with code 255.
Output for 5.3.0 - 5.3.29
rewinding Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 523800 bytes) in /in/XrJ1H on line 44
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
rewinding
Process exited with code 139.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting '{' in /in/XrJ1H on line 2
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/XrJ1H on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'{'' in /in/XrJ1H on line 2
Process exited with code 255.

preferences:
294.7 ms | 401 KiB | 344 Q