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<?php $depth = 0; spl_autoload_register(function ($class) use (&$depth) { $depth++; $indent = str_repeat('| ', $depth); echo $indent."$depth: $class\n"; if ($class == 'IFace') { interface IFace {} } elseif ($class == 'IFaceImplementor') { class IFaceImplementor implements IFace {} } elseif ($class == 'InterfaceOfMainParent') { interface InterfaceOfMainParent { public function methodForSecondaryLspCheck(): IFace; } } elseif ($class == 'MainParent') { abstract class MainParent implements InterfaceOfMainParent { public function methodForSecondaryLspCheck(): IFaceImplementor {} } } elseif ($class == 'Intermediate') { abstract class Intermediate extends MainParent {} } elseif ($class == 'Child1') { class Child1 extends Intermediate {} } elseif ($class == 'Child2') { class Child2 extends Intermediate {} } elseif ($class == 'EntrypointParent') { abstract class EntrypointParent { abstract public function methodForLspCheck1(): MainParent; abstract public function methodForLspCheck2(): MainParent; } } elseif ($class == 'Entrypoint') { class Entrypoint extends EntrypointParent { public function methodForLspCheck1(): Child1 {} public function methodForLspCheck2(): Child2 {} } } $depth--; }); class_exists(Entrypoint::class);
Output for 8.4.1 - 8.4.13
| 1: Entrypoint | | 2: EntrypointParent | | 2: Child1 | | | 3: Intermediate | | | | 4: MainParent | | | | | 5: InterfaceOfMainParent | | | | | 5: Child2 Fatal error: During inheritance of MainParent, while autoloading Child2: Uncaught Error: Class "Intermediate" not found in /in/G5fFe:31 Stack trace: #0 /in/G5fFe(22): {closure:/in/G5fFe:7}('Child2') #1 /in/G5fFe(27): {closure:/in/G5fFe:7}('MainParent') #2 /in/G5fFe(29): {closure:/in/G5fFe:7}('Intermediate') #3 /in/G5fFe(39): {closure:/in/G5fFe:7}('Child1') #4 [internal function]: {closure:/in/G5fFe:7}('Entrypoint') #5 /in/G5fFe(49): class_exists('Entrypoint') #6 {main} in /in/G5fFe on line 22
Process exited with code 255.
Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26
| 1: Entrypoint | | 2: EntrypointParent | | 2: Child1 | | | 3: Intermediate | | | | 4: MainParent | | | | | 5: InterfaceOfMainParent | | | | | 5: Child2 Fatal error: During inheritance of MainParent, while autoloading Child2: Uncaught Error: Class "Intermediate" not found in /in/G5fFe:31 Stack trace: #0 /in/G5fFe(22): {closure}('Child2') #1 /in/G5fFe(27): {closure}('MainParent') #2 /in/G5fFe(29): {closure}('Intermediate') #3 /in/G5fFe(39): {closure}('Child1') #4 [internal function]: {closure}('Entrypoint') #5 /in/G5fFe(49): class_exists('Entrypoint') #6 {main} in /in/G5fFe on line 22
Process exited with code 255.
Output for 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
| 1: Entrypoint | | 2: EntrypointParent | | 2: Child1 | | | 3: Intermediate | | | | 4: MainParent | | | | | 5: InterfaceOfMainParent | | | | | 5: IFaceImplementor | | | | | | 6: IFace | | 2: Child2
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33
| 1: Entrypoint | | 2: EntrypointParent | | 2: Child1 | | | 3: Intermediate | | | | 4: MainParent | | | | | 5: InterfaceOfMainParent | | | | | 5: IFaceImplementor | | | | | | 6: IFace Fatal error: Declaration of MainParent::methodForSecondaryLspCheck(): IFaceImplementor must be compatible with InterfaceOfMainParent::methodForSecondaryLspCheck(): IFace in /in/G5fFe on line 22
Process exited with code 255.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Parse error: syntax error, unexpected ':', expecting ';' or '{' in /in/G5fFe on line 19
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/G5fFe on line 7
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, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION, expecting ')' in /in/G5fFe on line 7
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/G5fFe on line 7
Process exited with code 255.
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68.51 ms | 416 KiB | 5 Q