PHP -- Convert string to bigint

Question

I have the following string which i need to convert to integer or bigint.

$test="99999977706";

I tried:

echo (int)$test;
echo (integer)$test;
echo intval($test);

But they are all returning me 2147483647.

How do i convert the above string to a number or bigint?

Many many thanks for all suggestions.

http://stackoverflow.com/questions/211345/working-with-large-numbers-in-php — Sebastian Paaske Tørholm, Jan 23 '12 at 15:26
Does it need to be an int or just a number? Because (platform dependent) casting to `(float)` may work. — DaveRandom, Jan 23 '12 at 15:27
What do you want to achieve with that number? A usual integer cannot be larger than that value, and BigInt is not built in into PHP — Nico Haase, Jan 27 '21 at 09:00

score 2 · Accepted Answer · answered Jan 23 '12 at 15:35

2

MySQL isn't going to know the difference. Just feed the string into your query as though it is a number without first type casting it in PHP.

For example:

$SQL = "SELECT * FROM table WHERE id = $test";

answered Jan 23 '12 at 15:35

Treffynnon

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Hello @Treffynnon, How it I have to pre process the bigint before the SQL. Let's say I have to use `select ... where ... in ( some bigint values )` ? – Cauliturtle Aug 06 '13 at 04:17
@Cauliturtle I have no idea what you are asking, but I suggest that you ask your own question on StackOverflow as comments aren't really designed for this kind of discussion. – Treffynnon Aug 06 '13 at 08:47
Can you share more details about this? There is no connection to MySQL in the question, and whatever you want to do with the given ` $SQL` variable, you should not use it to run a query – Nico Haase Jan 27 '21 at 08:59

score 1 · Answer 2 · answered Sep 01 '18 at 05:25

1

working solution :

<?php
   $str = "99999977706";
   $bigInt = gmp_init($str);
   $bigIntVal = gmp_intval($bigInt);
   echo $bigIntVal;
   ?>

It will return : 99999977706

answered Sep 01 '18 at 05:25

Manoj Prajapat

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score 0 · Answer 3 · answered Mar 04 '14 at 03:35

0

For arbitrary length integers use GMP.

answered Mar 04 '14 at 03:35

Markus Malkusch

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1

...probably the best solution but it should be pointed out that the GMP extension has to be installed or your gmp_init, gmp_intval etc. calls will fail! – Milan Jul 22 '15 at 19:09

score 0 · Answer 4 · answered Jan 27 '21 at 08:31

0

You can treat the string as string without converting it.

Just use a regex to leave only numbers:

$test = "99999977706";
$test = preg_replace('/[^0-9]/', '', $test);

answered Jan 27 '21 at 08:31

Avatar

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score 0 · Answer 5 · answered Jan 23 '12 at 15:27

0

In your snippet $test is already a number, more specifically a float. PHP will convert the contents of $test to the correct type when you use it as a number or a string, because the language is loosely typed.

answered Jan 23 '12 at 15:27

Michael Dillon

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Sorry,i modified it. $test is in fact a string and i need it to be a number for comparison purposes – Kim Jan 23 '12 at 15:30
If you cast it to a float you should be good to go. Mysql has no knowledge of php types so you should be fine casting it to a float and then using it accordingly. – Michael Dillon Jan 23 '12 at 15:34

score -1 · Answer 6 · answered Feb 07 '13 at 10:57

-1

It can help you,

$token=  sprintf("%.0f",$appdata['access_token'] );

you can refer with this link

answered Feb 07 '13 at 10:57

ShivarajRH

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"Help" to achieve what? `sprintf` will never return a BigInt, but always a string – Nico Haase Jan 27 '21 at 09:01

PHP -- Convert string to bigint

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