PHP Float conversion fails, returns 1

Question

I have a function which returns a value of 1725.00 using the number_format(value,2). So, now when I convert it to float, it gives 1, same for int,intValue,floatValue. Even I tried multiplying with 100 to get the int value, but it gives an error of A non well formed numerical value. Does anyone know what is wrong here?

$balance = (float) currentBalance($user_id); // currentBalance gives a value of 1725, but (float) gives makes the value 1.
print_r($balance); die; //gives 1.

I'm using PHP 7.0+ and Laravel 5.8.

Possible duplicate of PHP String to Float

Dilip Hirapara
– Dilip Hirapara

2019-11-01 05:16:05 +00:00
Commented Nov 1, 2019 at 5:16 — Dilip Hirapara
– Dilip Hirapara, Commented Nov 1, 2019 at 5:16

Nick · Accepted Answer · 2019-11-01 05:21:41Z

2

Your problem is that number_format returns a string with commas inserted for thousand separators, so the return value from your function is 1,725.00. When you try to cast this as a float PHP gets as far as the comma and says this is no longer a number and so returns 1.

If you need to have a formatted string returned by currentBalance, your best bet is to use

$balance = (float)str_replace(',', '', currentBalance($user_id));

Otherwise, replace the call to number_format with a call to round so that currentBalance returns a numeric value instead.

edited Nov 1, 2019 at 5:21

answered Nov 1, 2019 at 5:14

Nick

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3 Comments

Rob13 Over a year ago

I used round as well and it gives 1.

Nick Over a year ago

@Rob13 you changed the call to number_format inside currentBalance to round? That should have worked. If it didn't, I'd need to see the code for currentBalance to understand why. Regardless, the use of str_replace I have suggested in the answer will work.

Rob13 Over a year ago

Yeah, sorry it worked, I understood something different previously. So, I read your comment again and understood this time. Your answer makes perfect sense. Thanks a lot.

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