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run code in 150+ php & hhvm versions
Bugs & Features
<?php function test(ReflectionFunctionAbstract $r) { echo 'isClosure(): '; var_dump($r->isClosure()); if ($r instanceof ReflectionMethod) { $rc = $r->getDeclaringClass(); $dc = $rc ? $rc->getName() : 'no declaring class'; } else { $dc = 'not a ReflectionMethod'; } echo 'getDeclaringClass(): ' . $dc; echo "\n"; $csc = $r->getClosureScopeClass(); echo 'getClosureScopeClass(): ' . ($csc ? $csc->getName() : 'no closure scope class'); echo "\n"; echo "\n"; } class C { function f() { return function($p) {}; } function f2() { $cl = $this->f(); $c2 = new C2; $cl->bindTo($c2); return $cl; } } class C2 {} $c = new C; $cl = $c->f(); $rf = new ReflectionFunction($cl); test($rf); $rps = $rf->getParameters(); $rp = $rps[0]; test($rp->getDeclaringFunction()); $cl = $c->f2(); $rf = new ReflectionFunction($cl); test($rf); $rps = $rf->getParameters(); $rp = $rps[0]; test($rp->getDeclaringFunction());
based on c8Nbr
Output for 5.4.0 - 5.6.28, 7.0.0 - 7.1.0
isClosure(): bool(true) getDeclaringClass(): not a ReflectionMethod getClosureScopeClass(): C isClosure(): bool(true) getDeclaringClass(): C getClosureScopeClass(): C isClosure(): bool(true) getDeclaringClass(): not a ReflectionMethod getClosureScopeClass(): C isClosure(): bool(true) getDeclaringClass(): C getClosureScopeClass(): C
Output for hhvm-3.12.0
isClosure(): bool(true) getDeclaringClass(): not a ReflectionMethod getClosureScopeClass(): C isClosure(): bool(false) getDeclaringClass(): Closure$C::f;262025241 getClosureScopeClass(): no closure scope class isClosure(): bool(true) getDeclaringClass(): not a ReflectionMethod getClosureScopeClass(): C isClosure(): bool(false) getDeclaringClass(): Closure$C::f;262025241 getClosureScopeClass(): no closure scope class
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.3.0 - 5.3.29
isClosure(): bool(true) getDeclaringClass(): not a ReflectionMethod Fatal error: Call to undefined method ReflectionFunction::getClosureScopeClass() in /in/oED7H on line 14
Process exited with code 255.
Output for 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/oED7H on line 23
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/oED7H on line 23
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting ')' in /in/oED7H on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting ')' in /in/oED7H on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/oED7H on line 2
Process exited with code 255.