CODEWITHSUNDEEP
php
neptune
neptune

Reputation: 1261

Increment a large integer

I'd like an incremented $max_id to be returned.

Seems that the following script doesn't work:

<?php
$max_id = 656886639189471232;
$max_id = $max_id+1;
$max_id = number_format($max_id, 0, '', '');
var_dump($max_id);
?>

Needed 656886639189471233

Upvotes: 0

Views: 158

Answers (3)

trenccan
trenccan

Reputation: 720

Try this:

<?php
$a = "656886639189471232";
$b = "1";

echo bcadd($b, $a,0);
?>

If your input data are integers you can convert $a and $b to string with:

$var=5;
$tostring = strval($var);
echo var_dump($tostring);

Upvotes: 2

Michael
Michael

Reputation: 1203

The problem is number_format is made for float.

You can have details on this other post Why is my number value changing using number_format()?

Upvotes: 0

Pharm
Pharm

Reputation: 162

Remove the following line:

$max_id = number_format($max_id, 0, '', '');

The following works fine:

$max_id = 656886639189471232;
$max_id = $max_id+1;
var_dump($max_id);

Upvotes: -1

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