Question

How to use bccomp() to compare two arbitrary precision numbers in PHP

Answer 1

// int bccomp ( string $left_operand , string $right_operand [, int $scale = 0 ] )

// Return 0 if the two operands are equal, 
//        1 if the left_operand is larger than right_operand, -1 otherwise

echo bccomp('1', '3') . "<br />";  
echo bccomp('1.00002', '1', 3) . "<br />";  
echo bccomp('1.00002', '1', 5) . "<br />";  


/*
run: 

-1
0
1

*/

 

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