PHP | gmp_perfect_square() Function Last Updated : 27 Nov, 2018 Summarize Suggest changes Share Like Article Like Report The gmp_perfect_square() is an inbuilt function in PHP which checks if the given GMP number(GNU Multiple Precision: For large numbers) is a perfect square or not. Syntax: gmp_perfect_square($num) Parameters: The function accepts one GMP number $num. This parameter can be a GMP object in PHP version 5.6 and later, or we are also allowed to pass a numeric string provided that it is possible to convert that string to a number. Return Value: The function returns true if the given number $num is a perfect square, otherwise it returns false. Examples: Input : $num=25 Output : true Input : $num=10 Output : false Below programs illustrate the use of gmp_perfect_square() function: Program 1: The program below demonstrates the working of gmp_perfect_square() function when GMP number is passed as an argument. php <?php // PHP program to check the if the // number is perfect square or not // numeric string arguments $num = gmp_init("1001", 2); // checks if 9 (1001) is a perfect number or not var_dump(gmp_perfect_square($num))."\n"; $num = gmp_init("11001", 2); // checks if 25 (11001) is a perfect number or not var_dump(gmp_perfect_square($num))."\n"; $num = gmp_init("1100", 2); // checks if 12 (1100) is a perfect number or not var_dump(gmp_perfect_square($num)); ?> Output: bool(true) bool(true) bool(false) Program 2: The program below demonstrates the working of gmp_perfect_square() when numeric string is passed as an argument. php <?php // PHP program to check the if the // number is perfect square or not // numeric string arguments $num = "9"; // checks if 9 (1001) is a perfect number or not var_dump(gmp_perfect_square($num))."\n"; $num = "25"; // checks if 25 (11001) is a perfect number or not var_dump(gmp_perfect_square($num))."\n"; $num = "12"; // checks if 12 (1100) is a perfect number or not var_dump(gmp_perfect_square($num)); ?> Output: bool(true) bool(true) bool(false) Reference: http://php.net/manual/en/function.gmp-perfect-square.php Advertise with us Next Article PHP | gmp_sub() Function C ChetnaAgarwal Follow Similar Reads PHP gmp_perfect_power() Function The gmp_perfect_power() function is an inbuilt function in PHP that is used to check the perfect power of the number. Syntax: gmp_perfect_power(GMP|int|string $num): boolParameters: This function accepts only one parameter which is described below. $num: A GMP number resource representing the number 2 min read PHP | gmp_sqrt() Function The gmp_sqrt() is a built-in function in PHP which is used to calculate the square root of a GMP number (GNU Multiple Precision : For large numbers). This function returns only the integral part of the square root of the GMP number. Syntax: gmp_sqrt ( $num ) Parameters: This function accepts a GMP n 2 min read PHP | gmp_sqrtrem() Function The gmp_sqrtrem() is a built-in function in PHP which is used to calculate the square root of a GMP number (GNU Multiple Precision : For large numbers) with remainder. This function also returns only the integral part in the square root of the GMP number as the gmp_sqrt() function. The remainder is 2 min read PHP | gmp_sub() Function The gmp_sub() is an in-built function in PHP which returns the subtraction of the two GMP numbers.(GNU Multiple Precision: For large numbers) Syntax: gmp_sub($num1, $num2) Parameters: This function accepts two GMP numbers $num1 and $num2 as mandatory parameters shown in the above syntax. These param 2 min read PHP | gmp_import() Function The gmp_import() function is an inbuilt function in php which imports a GMP number(GNU Multiple Precision: For large numbers) from a binary string. Syntax: GMP gmp_import ( string $data, int $word_size, int $options ) Parameters: The gmp_import() function accepts three parameters as mentioned above 2 min read PHP | gmp_scan1() Function The gmp_scan1() is an inbuilt function which is used to scan "1" in the GMP number(GNU Multiple Precision : For large numbers) starting from given index which move towards most significant bits in the number. Syntax: gmp_scan1($num, $index) Parameters: This function accepts two parameters as explain 2 min read Article Tags : Misc Web Technologies PHP PHP-gmp maths-perfect-square +1 More Practice Tags : Misc Like