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bccomp> <BC Math Funcţii
Last updated: Fri, 27 Jun 2008

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bcadd

(PHP 4, PHP 5)

bcadd — Add two arbitrary precision numbers

Descrierea

string bcadd ( string $left_operand , string $right_operand [, int $scale ] )

Sums left_operand and right_operand .

Parametri

left_operand

The left operand, as a string.

right_operand

The right operand, as a string.

scale

Acest parametru opţional este utilizat pentru a stabili numărul cifrelor după virgulă din rezultat. De asemenea puteţi să stabiliţi parametrul global scale pentru toate funcţiile utilizând bcscale().

Valorile întroarse

The sum of the two operands, as a string.

Exemple

Example #1 bcadd() example

<?php

$a 
'1.234';
$b '5';

echo 
bcadd($a$b);     // 6
echo bcadd($a$b4);  // 6.2340

?>

Vedeţi de asemenea



add a note add a note User Contributed Notes
bcadd
Bo Anders Svensson
23-May-2005 05:25
Be aware:

$exp1 = "1E5";
$exp2 = "2E4";

$ans1 = bcadd((float)$exp1, (float)$exp2, 3);
$ans2 = bcadd((int)$exp1, (int)$exp2, 3);
$ans3 = bcadd($exp1, $exp2, 3);

echo "1: $exp1 + $exp2 = $ans1\r\n";
echo "2: $exp1 + $exp2 = $ans2\r\n";
echo "3: $exp1 + $exp2 = $ans3\r\n";

1: 1E5 + 2E4 = 120000.000
2: 1E5 + 2E4 = 3.000
3: 1E5 + 2E4 = 0.000

bccomp> <BC Math Funcţii
Last updated: Fri, 27 Jun 2008
 
 
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