[Done v1.5.6] PHP Warning: A non-numeric value encountered... - PHP 7 warnings

[swguy]

Line 50 is pretty meaty so I'll leave this for those who seem to enjoy these challenges.......

$format_string = $this->currencies[$currency_type]['symbol_left'] . number_format(zen_round($number * $rate, $this->currencies[$currency_type]['decimal_places']), $this->currencies[$currency_type]['decimal_places'], $this->currencies[$currency_type]['decimal_point'], $this->currencies[$currency_type]['thousands_point']) . $this->currencies[$currency_type]['symbol_right']; 

I added

if (!is_numeric($number)) $number = 0;

at line 46 in includes/classes/currencies.php