Call to undefined function App\Http\Controllers\bcmul() in laravel 5.5

Question

Here is My code bcmul is undefined but my concern bcmul is php function using for Multiply two arbitrary precision numbers. but laravel show undefined why?

 public function confirmBtcRequest(Request $request,$id){ $getBalanceInfo = $this->bitcoin->get_balance(); $sendAmount = bcmul($getBalanceInfo->data->available_balance, '0.01', 8); print_r($sendAmount); die; }

if You have any idea please respond me.

You might need to install BCMath php.net/manual/en/bc.installation.php — hktang
– hktang, Commented Nov 21, 2018 at 13:07

hktang · Accepted Answer · 2019-07-01 03:02:20Z

According to PHP documentation, BCMath is not available by default with PHP7 on Linux servers.

bcmath ist not installed automatically with php 7 on linux (ubuntu server) You have to use: sudo apt-get install php-bcmath

Please install it using apt-get: sudo apt-get install php-bcmath

Source: http://php.net/manual/en/bc.installation.php

MD. Jubair Mizan · Accepted Answer · 2018-11-21 13:08:45Z

bcmul() is a function in php. This error means that the php version on your server has not been compiled with the necessary library, called BC Math (http://php.net/manual/en/book.bc.php). You need to talk to your server admin about this.

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