Laughing Meme » math http://laughingmeme.org Just another WordPress weblog Mon, 02 Apr 2012 20:12:19 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 bceval: arbitrary precision math for PHP without extensions http://laughingmeme.org/2008/03/25/bceval-arbitrary-precision-math-for-php-without-extensions/ http://laughingmeme.org/2008/03/25/bceval-arbitrary-precision-math-for-php-without-extensions/#comments Tue, 25 Mar 2008 20:50:38 +0000 Kellan http://laughingmeme.org/2008/03/25/bceval-arbitrary-precision-math-for-php-without-extensions/ I needed arbitrary precision math in PHP, and wasn’t willing to rebuild PHP to add the bcmath extensions. All hail backticks.

function bceval($expr) {
  return trim(`echo "$expr" | bc`);
}

Used like so

$end = bceval("$start + $batchsize - 1");

Wet cat territory.

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