'"Notice: A non well formed numeric value encountered" PHP [duplicate]

I am getting the following error as a result of a calculation. I couldn't see any problem with the exit code. So why am I getting this error and how can I fix it?

// b2Cost = 19.020843;

return (float)number_format((float)str_replace(",", ".", $b2Cost), 2, ".", "");

Error:

Notice: A non well formed numeric value encountered
phpstr-replacenumber-formatting


Solution 1:[1]

Try

return (float)number_format((float)str_replace(",", ".", (string) $b2Cost), 2, ".", "");

But if you just want to shorten the float, take a look at https://www.php.net/manual/en/function.round.php

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Guido Faecke

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