static zend_always_inline zend_string *zend_string_init(const char *str, size_t len, int persistent)
{
	zend_string *ret = zend_string_alloc(len, persistent);

	memcpy(ZSTR_VAL(ret), str, len);
	ZSTR_VAL(ret)[len] = '\0';
	return ret;
}

static zend_string* ZEND_FASTCALL zend_string_init_interned_permanent(const char *str, size_t size, int permanent)
{
	zend_string *ret;
	zend_ulong h = zend_inline_hash_func(str, size);

	ret = zend_interned_string_ht_lookup_ex(h, str, size, &interned_strings_permanent);
	if (ret) {
		return ret;
	}

	ZEND_ASSERT(permanent);
	ret = zend_string_init(str, size, permanent);
	ZSTR_H(ret) = h;
	return zend_add_interned_string(ret, &interned_strings_permanent, IS_STR_PERMANENT);
}