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[ErrorHandler] Do not patch return types that are not a valid PHP type
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wouterj committed Jul 28, 2022
commit fa7703ba4a70c53c1565217ca91483f1db947edb
5 changes: 5 additions & 0 deletions src/Symfony/Component/ErrorHandler/DebugClassLoader.php
Original file line number Diff line number Diff line change
Expand Up @@ -853,6 +853,11 @@ private function setReturnType(string $types, string $class, string $method, str
return;
}

if (!preg_match('/^(?:\\\\?[a-zA-Z_\x80-\xff][a-zA-Z0-9_\x80-\xff]*)+$/', $n)) {
// exclude any invalid PHP class name (e.g. `Cookie::SAMESITE_*`)
continue;
}

if (!isset($phpTypes[''])) {
$phpTypes[] = $n;
}
Expand Down