What is gmp_sqrt in PHP?
The gmp_sqrt() is a function in PHP that calculates the square root of a GMP number.
Syntax
gmp_sqrt(GMP|int|string $num): GMP
Parameters
The function takes in one parameter, num.
numcan be a numericstring,object, or of type GMP GNU Multiple Precision Arithmetic Library int.
Return value
The function returns the integer part of the square root. The value returned is a GMP type number.
Code
Let’s run the following code to calculate the square root of a GMP number using gmp_sqrt() function.
<?php//numeric string as argument$type1 = "9";$squareRoot = gmp_sqrt($type1);echo $squareRoot."\n";//GMP number as argument//gmp_init is used to create a GMP number$type2 = gmp_init(7, 10);$squareRoot = gmp_sqrt($type2);echo $squareRoot."\n";?>
Line 3: Initializes the variable
$type1.Line 4: Attempts to calculate the square root of
$type1using thegmp_sqrt()function.Line 9: Initializes the variable
$type2using gmp_init(), creating a GMP number. The functiongmp_init(7, 10)initializes a GMP number with the value 7 using base 10.Line 10: Computes the square root of the GMP number
$type2usinggmp_sqrt().
