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issue with mysql save latitude and longitude (cut numbers) laravel – Phpmyadmin

This working with mysql (5.7.32) php (8.0.0) and laravel 8.
I get lat and lng using leaflet. in fact I did tests saving the number manually in the database and the same error occurs

when I look at the database with phpmyadmin I see exactly the number it should be:
-32.84240531063937 but when I bring those values ​​with laravel and do dd() -32.842405310639
remove the last numbers (37).

the data type on mysql is DOUBLE without Length/Values

this is how i get the numbers from the database.

I have a table called complaints where each of them has lat and lng
So now I need to get all the records that have (comune_name = Llay Lay)
and it is from there where I get lat and lng from the first record.


$complaints = Complaint::where('comune_name', 'Llay Llay')->get()->toArray();

$denounced_lat = $complaints[0]['lat']; //lat of first complaint
$denounced_lng = $complaints[0]['lng']; //lng of first complaint

  dd($denounced_lat); //acá está el error

The number I see in the database is: -32.84240531063937
and the number that dd () draws is: -32.842405310639

thnks 🙂

EDIT: Finally i save as VARCHAR.

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2

Answers


  1. 0

    PHP works with different precision compared to your database solution.

    Consider storing them as 64-bit signed ints if you want to keep the precision.

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  2. 0

    to hold a long number after the comma ‘,’ you can use decimal:

        $table->decimal('lng', 10, 18);
    $table->decimal('lat', 10, 18);

    The declaration syntax for a DECIMAL column is DECIMAL(M,D). The ranges of values for the arguments are as follows:

    M is the maximum number of digits (the precision). It has a range of 1 to 65.

    D is the number of digits to the right of the decimal point (the scale). It has a range of 0 to 30 and must be no larger than M.

    it worth to say that you should cast it to float in $cast attribute in your model, in Laravel doc, there is a decimal cast but it’s not ready yet!
    for more info see this answer.

    see mysql decimal

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