1.正常情况下 应该是1，而不是1.00
2.刷新多次结果还可能变成1

please, this is an english bugtracker - i don't write german here too

http://php.net/manual/zh/function.bcmul.php
> left_operand
> 字符串类型的左操作数.
> right_operand
> 字符串类型的右操作数.

Please try
  var_dump(bcmul("0.01", "100"));

Test script:
---------------
<?php echo bcmul("0.01", 100);

<?php echo bcmul(0.01, 100);

Expected result:
----------------
1

Actual result:
--------------
1.00

Test link:
--------------
Refresh multiple times, and the result can also be 1

The scale is not set, but there are two decimal places.

Test script:
---------------
<?php echo bcmul("0.01", 100);

<?php echo bcmul(0.01, 100);

Expected result:
----------------
1

Actual result:
--------------
1.00

Test link:
--------------
http://tb.besoft.top/bcmul.php

Refresh multiple times, and the result can also be 1

Please run without SourceGuardian, just to make sure it is not
related to this extension.

Please run without SourceGuardian, just to make sure it is not
related to this extension.

Thank you for your help, and it's really the reason for the SourceGuardian extension.

Thank you for your help, and it's really the reason for the SourceGuardian extension.