%windir%\System32\regsvr32.exe /u Php_gmp.dll

%windir%\SysWoW64\regsvr32.exe /u Php_gmp.dll

%windir%\System32\regsvr32.exe /i Php_gmp.dll

%windir%\SysWoW64\regsvr32.exe /i Php_gmp.dll

Method 2: Copying the Php_gmp.dll Library to the Program Installation Directory link

1. In order to install the dynamic link library, you need to find the installation directory for the program that was giving you errors such as «Php_gmp.dll is missing«, «Php_gmp.dll not found» or similar error messages. In order to do that, Right-click the program’s shortcut and click the Properties item in the right-click menu that appears. Step 1:Opening the program shortcut properties window
2. Click on the Open File Location button that is found in the Properties window that opens up and choose the folder where the application is installed. Step 2:Opening the installation directory of the program
3. Copy the Php_gmp.dll library into the directory we opened up. Step 3:Copying the Php_gmp.dll library into the program’s installation directory
4. That’s all there is to the installation process. Run the program giving the dll error again. If the dll error is still continuing, completing the 3rd Method may help fix your issue.

Method 3: Uninstalling and Reinstalling the Program that Gives You the Php_gmp.dll Error link

1. Open the Run tool by pushing the «Windows» + «R» keys found on your keyboard. Type the command below into the «Open» field of the Run window that opens up and press Enter. This command will open the «Programs and Features» tool.

Method 4: Fixing the Php_gmp.dll error with the Windows System File Checker link

1. In order to complete this step, you must run the Command Prompt as administrator. In order to do this, all you have to do is follow the steps below.

NOTE! We ran the Command Prompt using Windows 10. If you are using Windows 8.1, Windows 8, Windows 7, Windows Vista or Windows XP, you can use the same method to run the Command Prompt as administrator.

1. Open the Start Menu and before clicking anywhere, type «cmd» on your keyboard. This process will enable you to run a search through the Start Menu. We also typed in «cmd» to bring up the Command Prompt.
2. Right-click the «Command Prompt» search result that comes up and click the Run as administrator» option.

Step 1:Running the Command Prompt as administrator

Method 5: Fixing the Php_gmp.dll Error by Manually Updating Windows link

Some programs require updated dynamic link libraries from the operating system. If your operating system is not updated, this requirement is not met and you will receive dll errors. Because of this, updating your operating system may solve the dll errors you are experiencing.

Most of the time, operating systems are automatically updated. However, in some situations, the automatic updates may not work. For situations like this, you may need to check for updates manually.

For every Windows version, the process of manually checking for updates is different. Because of this, we prepared a special guide for each Windows version. You can get our guides to manually check for updates based on the Windows version you use through the links below.

gmp_cmp

(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)

gmp_cmp — Сравнение чисел

Описание

Сравнивает два числа.

Список параметров

Объект GMP, целое число ( int ) или числовая строка ( string ).

Объект GMP, целое число ( int ) или числовая строка ( string ).

Возвращаемые значения

Возвращает положительное значение, если a > b , ноль, если a = b и отрицательное значение, если a .

Примеры

Пример #1 Пример использования gmp_cmp()

= gmp_cmp ( «1234» , «1000» ); // больше
$cmp2 = gmp_cmp ( «1000» , «1234» ); // меньше
$cmp3 = gmp_cmp ( «1234» , «1234» ); // равны

echo » $cmp1 $cmp2 $cmp3 \n» ;
?>

Результат выполнения данного примера:

User Contributed Notes 1 note

I’ve encountered a memory leak in gmp_cmp if a literal string is used as the second value inside of loops. A workaround is to initialize first, then use the variable. I wasn’t able to generate a minimum code sample, it’s something more complicated, but I was able to fix it as follows:

= gmp_init ( strval ( mt_rand ()));

// Depending on surrounding code, may have leaks
while ( true )
<
if (! gmp_cmp ( $x , ‘1’ ))
print ‘one’ . «\n» ;
>

// Usually doesn’t have leaks
$one = gmp_init ( ‘1’ );

while ( true )
<
if (! gmp_cmp ( $x , $one ))
print ‘one’ . «\n» ;
>

GMP Функции

Смотрите также

Другие математические функции можно найти в разделе Математические расширения

Содержание

• gmp_abs — Абсолютная величина
• gmp_add — Сложение чисел
• gmp_and — Побитовое И
• gmp_binomial — Вычисляет биномиальный коэффициент
• gmp_clrbit — Сброс бита
• gmp_cmp — Сравнение чисел
• gmp_com — Вычисляет дополнение до единицы числа
• gmp_div_q — Деление чисел
• gmp_div_qr — Деление чисел и получение частного и остатка
• gmp_div_r — Остаток от деления чисел
• gmp_div — Псевдоним gmp_div_q
• gmp_divexact — Деление чисел без остатка
• gmp_export — Экспортировать в бинарную строку
• gmp_fact — Факториал
• gmp_gcd — Вычисление наибольшего общего делителя
• gmp_gcdext — Вычисление НОД и множителей
• gmp_hamdist — Расстояние Хэмминга
• gmp_import — Импортировать из бинарной строки
• gmp_init — Создание GMP числа
• gmp_intval — Преобразование числа GMP в целое число
• gmp_invert — Инверсия остатка от деления
• gmp_jacobi — Символ Якоби
• gmp_kronecker — Символ Кронекера — Якоби
• gmp_lcm — Вычисляет наименьшее общее кратное
• gmp_legendre — Символ Лежандра
• gmp_mod — Вычисление остатка от целочисленного деления
• gmp_mul — Умножение чисел
• gmp_neg — Изменение знака числа
• gmp_nextprime — Поиск следующего простого числа
• gmp_or — Побитовое ИЛИ
• gmp_perfect_power — Проверить, является ли число «совершенной степенью»
• gmp_perfect_square — Проверка числа на точный квадрат
• gmp_popcount — Количество единиц в двоичной записи числа
• gmp_pow — Возводит число в степень
• gmp_powm — Возводит число в степень и производит деление по модулю
• gmp_prob_prime — Проверяет, является ли число «вероятно простым»
• gmp_random_bits — Случайное число
• gmp_random_range — Случайное число
• gmp_random_seed — Установить начальное состояние RNG
• gmp_random — Случайное число
• gmp_root — Извлечь корень степени N и вернуть его целую часть
• gmp_rootrem — Извлечь корень степени N и вернуть его целую часть и остаток
• gmp_scan0 — Поиск нуля в числе
• gmp_scan1 — Поиск единицы в числе
• gmp_setbit — Установка бита
• gmp_sign — Знак числа
• gmp_sqrt — Вычисление квадратного корня
• gmp_sqrtrem — Квадратный корень с остатком
• gmp_strval — Преобразование GMP числа в строку
• gmp_sub — Вычитание чисел
• gmp_testbit — Проверка, установлен ли бит в 1
• gmp_xor — Побитовое исключающее ИЛИ

User Contributed Notes 3 notes

I made a function that can be used for converting numbers to any base you wish.. instead of returning a string of pre-defined index of characters (i.e. 0-9a-z) you could simply make your own of any length using the array of indexes it returns.
I looked around and didn’t see anybody made one, I needed one for a simple compression algorithm with only numbers, I’ve not actually made it yet but this was an initial idea.

// ConvertBase function explained:
// we add an array item $Input%$Base floored and divide $Input by $Base floored.
// repeat until $Input is no longer above 0.

function ConvertBase ( $Input , $Base = 10 ) <
$Input = gmp_init ( $Input );
$Result =array();

for( $i = 0 ; $i 1 || gmp_sign ( $Input )== 1 ; $i ++) <
$Result []= gmp_intval ( gmp_mod ( $Input , $Base ));
$Input = gmp_div_q ( $Input , $Base );
>
$Result = array_reverse ( $Result );
return( $Result );
>

// an example how gmp_strval($. 36); could be achieved:

// the funny emergency number from The IT Crowd
// (leading zeroes aren’t liked in gmp_init though)
$Input = ‘1189998819991197253’ ;

// our example 36 characters used in gmp_strval($. 36);
$Chars = ‘0123456789abcdefghijklmnopqrstuvwxyz’ ;

// count the $Chars so they’re all used
// or use your own number less than the length of $Chars
$Base = strlen ( $Chars );

// perform
$Result = ConvertBase ( $Input , $Base );

// replace the resulting index with the corrosponding characters of the index in $Chars
for( $i = 0 ; $i count ( $Result ); $i ++)
$Result [ $i ]= $Chars < $Result [ $i ]>;

// compare
printf ( «gmp_strval: %s\r\n» , gmp_strval ( $Input , 36 ));
printf ( «BaseConvert: %s\r\n» , implode ( $Result ));

/* OUTPUT:
gmp_strval: 91h7dixfq6h1
BaseConvert: 91h7dixfq6h1
*/
?>
The example shows a familiar result of course, but the idea of this function was so that you can use whatever base you wish, and display entirely your own output to represent any number of choice.

Also, for those who wish to do bitwise shifting, it’s quite simple.. to shift left, just multiply the number by pow(2,x), and to shift right, divide by pow(2,x).

function gmp_shiftl ( $x , $n ) < // shift left
return( gmp_mul ( $x , gmp_pow ( 2 , $n )));
>

function gmp_shiftr ( $x , $n ) < // shift right
return( gmp_div ( $x , gmp_pow ( 2 , $n )));
>
?>

Have fun,
Nitrogen.

For those (like me) who are trying to do bit masking with very large numbers, here is a useful function to do the work for you.

function isBitSet ( $bitMask , $bitMap )
<
return (bool) gmp_intval ( gmp_div ( gmp_and ( $bitMask , $bitMap ), $bitMask ));
>
?>

Here’s a quick and dirty way to use simple GMP functions with PHP without recompiling. It is dependent upon the use of the exec() function, so make sure you can use exec(). While in safe mode you must consider the safe_mode_exec_dir directive. And don’t simply pass user input to the exec function without validating the input first!

Download and Install GMP as instructed in README and INSTALL files.
On my MAC OS X Server, I just did the following:
./configure
make
make check
make install
This installed it in the /usr/local directory. There were some errors, but not with any functions I needed.
Within the gmp-4.#.# cd into the demos directory. Then compile pexpr.c by typing:
make pexpr
This is a simple expressions parser which serves as a simple interface to some of the basic GMP functions.
You can test it then like:
./pexpr «102394874783 * 23498748»;
Now you may interface with it using PHP’s exec() function.