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run code in 200+ php & hhvm versions
Bugs & Features
<?php if (!function_exists('interface_exists')) { die('PHP version too old'); } $throwables = listThrowableClasses(); $throwablesPerParent = splitInParents($throwables); printTree($throwablesPerParent); if (count($throwablesPerParent) !== 0) { die('ERROR!!!'); } function listThrowableClasses() { $result = array(); if (interface_exists('Throwable')) { foreach (get_declared_classes() as $cn) { $implements = class_implements($cn); if (isset($implements['Throwable'])) { $result[] = $cn; } } } else { foreach (get_declared_classes() as $cn) { if ($cn === 'Exception' || is_subclass_of($cn, 'Exception')) { $result[] = $cn; } } } return $result; } function splitInParents($classes) { $result = array(); foreach ($classes as $cn) { $parent = (string) get_parent_class($cn); if (isset($result[$parent])) { $result[$parent][] = $cn; } else { $result[$parent] = array($cn); } } return $result; } function printTree(&$tree) { if (!isset($tree[''])) { die('No root classes!!!'); } printLeaves($tree, '', 0); } function printLeaves(&$tree, $parent, $level) { if (isset($tree[$parent])) { $leaves = $tree[$parent]; unset($tree[$parent]); natcasesort($leaves); $leaves = array_values($leaves); $count = count($leaves); for ($i = 0; $i < $count; $i++) { $leaf = $leaves[$i]; echo str_repeat(' ', $level), $leaf, "\n"; printLeaves($tree, $leaf, $level + 1); } } }

Shows result from various feature-branches currently under review from the php developers. Contact me to have additional branches featured.

Output for Arrow functions
Error ArithmeticError DivisionByZeroError AssertionError ParseError TypeError ArgumentCountError Exception ClosedGeneratorException DOMException ErrorException IntlException LogicException BadFunctionCallException BadMethodCallException DomainException InvalidArgumentException LengthException OutOfRangeException PharException ReflectionException RuntimeException OutOfBoundsException OverflowException PDOException RangeException UnderflowException UnexpectedValueException
Output for Object typehint
Error ArithmeticError DivisionByZeroError AssertionError ParseError TypeError ArgumentCountError Exception ClosedGeneratorException DOMException ErrorException IntlException LogicException BadFunctionCallException BadMethodCallException DomainException InvalidArgumentException LengthException OutOfRangeException PharException ReflectionException RuntimeException OutOfBoundsException OverflowException PDOException RangeException UnderflowException UnexpectedValueException
Output for Array change keys
Error ArithmeticError DivisionByZeroError AssertionError ParseError TypeError Exception ClosedGeneratorException DOMException ErrorException IntlException LogicException BadFunctionCallException BadMethodCallException DomainException InvalidArgumentException LengthException OutOfRangeException PharException ReflectionException RuntimeException OutOfBoundsException OverflowException PDOException RangeException UnderflowException UnexpectedValueException
Output for Lexical anon
Exception AssertionException DOMException ErrorException IntlException LogicException BadFunctionCallException BadMethodCallException DomainException InvalidArgumentException LengthException OutOfRangeException PharException ReflectionException RuntimeException OutOfBoundsException OverflowException PDOException RangeException UnderflowException UnexpectedValueException
Output for Typed properties
Error ArithmeticError DivisionByZeroError AssertionError ParseError TypeError Exception ClosedGeneratorException DOMException ErrorException IntlException LogicException BadFunctionCallException BadMethodCallException DomainException InvalidArgumentException LengthException OutOfRangeException PharException ReflectionException RuntimeException OutOfBoundsException OverflowException PDOException RangeException UnderflowException UnexpectedValueException

Archived branches

Once feature-branches are merged or declined, they are no longer available. Their functionality (when merged) can be viewed from the main output page