PHP Manual . Prev . Next . PHP 3 <= 3.0.18, PHP 4 >= 4.0.0) bccomp -- Compare two arbitrary precision numbers . int bccomp ( string left_operand, string right_operand [, int scale]) . Compares the left_operand to the right_operand and returns the result as an integer. ... The return value is 0 if the two operands are equal. If the left_operand is larger than the right_operand the return value is +1 and if the left_operand is less than the right_operand the return value is -1. ...