Repository files navigation

PHP 5.x-8.x polyfill for bcmath extension

WithComposer:

$ composer require phpseclib/bcmath_compat

• extension_loaded('bcmath')

  bcmath_compat cannot make this return true. The recommended remediation is to not do this.

• ini_set('bcmath.scale', ...)

  You cannot set configuration options for extensions that are not installed. If you doini_set('bcmath.scale', 5) on a system without bcmath installed thenini_get('bcmath.scale') will returnfalse. It's similar to what happens when you doini_set('zzz', 5) and thenini_get('zzz'). You'll getfalse back.

  The recommended remediation to doingini_set('bcmath.scale', ...) is to dobcscale(...). The recommended remediation for doingini_get is (if you're using PHP >= 7.3.0) to dobcscale() or (if you're using PHP < 7.3.0) to domax(0, strlen(bcadd('0', '0')) - 2).

  Note thatini_get always returns a string whereas the recommended remediations return integers.