PHP5中文手册·Absolute value -- 追寻梦想＞编程乐园＞PHP 编程

resource gmp_abs ( resource $a )

Get the absolute value of a number.

a: It can be either a GMP number resource, or a numeric string given that it is possible to convert the latter to a number.

Returns the absolute value of a , as a GMP number.

Example#1 gmp_abs() example


<?php
$abs1 = gmp_abs("274982683358");
$abs2 = gmp_abs("-274982683358");

echo gmp_strval($abs1) . "\n";
echo gmp_strval($abs2) . "\n";
?>

上例将输出：

274982683358
274982683358


	PHP5中文手册 GMP gmp_add GMP PHP Manual gmp_abs (PHP 4 >= 4.0.4, PHP 5) gmp_abs — Absolute value 说明 resource gmp_abs ( resource `$a` ) Get the absolute value of a number. 参数 `a` It can be either a GMP number resource, or a numeric string given that it is possible to convert the latter to a number. 返回值 Returns the absolute value of `a` , as a GMP number. 范例 Example#1 gmp_abs() example `<?php $abs1 = gmp_abs("274982683358"); $abs2 = gmp_abs("-274982683358"); echo gmp_strval($abs1) . "\n"; echo gmp_strval($abs2) . "\n"; ?>` 上例将输出： 274982683358 274982683358 GMP gmp_add GMP PHP Manual