How may I Limit decimal to two

Question

Hello everyone and I hope you can help me.

I have 'value' => $amount_to_pay and I want $amount_to_pay to me multiplied by 0.11 but the output to be limited to only 2 decimals. It is for PayPal.

I used 'value' => $amount_to_pay*0.11 but what comes after the decimal is long and getting an error back from PayPal exp: 589.24*0.11 = 64.8164 I want output to be 64.81

Thank you

Syscall · Accepted Answer · 2021-02-14T09:30:41.887

2

You can use round() to round at N decimals

'value' => round($amount_to_pay * 0.11, 2) // 64.82

As @PrestonPHX mentionned, that give a round value. If you want to "truncate decimals you could use :

'value' => (int)($amount_to_pay * 100) / 100 // 64.81

To use a dynamic number of decimals, you could use :

$nb = 2; // number of decimals
$exp = pow(10, $nb);
echo (int)($amount_to_pay * $exp) / $exp;

edited Feb 14 '21 at 09:30

answered Feb 14 '21 at 09:22

Syscall

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`round()` is likely what should be used here, but this is not a truncate operation If you round `64.816` to two decimal places, you get 64.82. Whereas if you truncate, 64.81 – Preston PHX Feb 14 '21 at 09:25
You're right @PrestonPHX , I've updated my answer. – Syscall Feb 14 '21 at 09:31
1

Yes it did help! Thank you! – OUALID Mar 01 '21 at 12:25

How may I Limit decimal to two

1 Answers1