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Stdlib: var_dump()/print_r() show anonymous class internal name (NUL+filename suffix) #17444
Description
Repro (Zend PHP 8.2)
<?php
$o = new class {};
var_dump($o);
print_r($o);Zend output contains:
object(class@anonymous)#...class@anonymous Object
Repro (php-compiler VM)
php bin/vm.php -r '$o=new class{}; var_dump($o); print_r($o);'Observed output contains the internal anonymous class name:
class@anonymous\0Command line code:1$0
Expected
Match Zend formatting for anonymous classes in debug output (strip the internal \0... suffix).
Reference (php-src)
ext/standard/var.c(php_var_dump,php_print_r)
Done when
- VM output matches Zend for the snippet above.
- Add a regression test under
test/compliance/ortest/repro/coveringvar_dump+print_ron anonymous classes.
Activity
PurHur commentedon Jul 8, 2026
claim: PHP Compiler STD Lib — starting this run
Stdlib: var_dump()/print_r() strip anonymous class NUL suffix (#17444) (
PurHur commentedon Jul 8, 2026
Merged via #17448.
Fix:
VmVarDumpandVmPrintRnow callVmObjectDebugType::fromClassName()(same SSOT as #17443get_debug_type()) so anonymous classes display asclass@anonymouswithout the internal NUL+filename suffix.Verification:
php bin/vm.php test/repro/maintainer_gap_var_dump_print_r_anonymous_class.php→ ok./script/phpunit.sh --filter 'VMTest::testCases.*var_dump_print_r_anonymous'→ OKphp -d memory_limit=4G bin/compile.php -o build/test-var-dump-print-r-anon-aot test/fixtures/aot/compile-only/var_dump_print_r_anonymous_class.php→ exit 0PurHur commentedon Jul 8, 2026
claim: cursor-agent-lane-a — starting this run
Stdlib: debug_zval_dump() strip anonymous class NUL suffix (#17450) (#…