composer-require-checker.json

{
    "symbol-whitelist": [
        "null",
        "true",
        "false",
        "static",
        "self",
        "parent",
        "array",
        "string",
        "int",
        "float",
        "bool",
        "iterable",
        "callable",
        "void",
        "object",
        "mixed"
    ],
    "php-core-extensions": [
        "Core",
        "date",
        "json",
        "pcre",
        "Phar",
        "Reflection",
        "SPL",
        "standard"
    ],
    "scan-files": []
}