php: int() function equivalent for bigint type? (int() cuts strings to 2147483647)

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php: What's the equivalent int() function for bigint type? (int() cuts big numbers to 2147483647)?

Example:

$bigint1="12312342306A_C243";
$bigint1=(int)$bigint1;//2147483647

but I want it to be 12312342306.

There isn't a built-in type to do this kind of cast as you can see here (from the official doc). Anyway, you can use the GMP library to manage this long int.

intval - Manual, Returns the integer value of var , using the specified base for the conversion (the default is base 10). intval() should not be used on objects, 32 bit systems have a maximum signed integer range of -2147483648 to 2147483647. Strings will most likely return 0 although this depends on the leftmost characters of the string. (int() cuts strings to 2147483647) Nov 12 '11 13 sql query to get deleted records Jun 19 '12 12 Seems like POST values are lost when .htaccess RewriteRule used.

I know is old and answered, but for future reference of people looking at this:

UPDATED

The size of an integer is platform-dependent, although a maximum value of about two billion is the usual value (that's 32 bits signed). 64-bit platforms usually have a maximum value of about 9E18, except on Windows prior to PHP 7, where it was always 32 bit. PHP does not support unsigned integers. Integer size can be determined using the constant PHP_INT_SIZE, maximum value using the constant PHP_INT_MAX since PHP 5.0.5, and minimum value using the constant PHP_INT_MIN since PHP 7.0.0.

Source

Type Juggling - Manual, That is to say, if a string value is assigned to variable $var , $var becomes a string​. If an integer value is then assigned to $var , it becomes an integer. To change the type of a variable, see the settype() function. Note that tabs and spaces are allowed inside the parentheses, so the following are functionally equivalent:. 8 php: int() function equivalent for bigint type? (int() cuts strings to 2147483647) Feb 8 '13 7 how to set form attribute on a createElement input with Javascript Jul 1 '12

I solved it by casting to float rather than int:

(int) '8554104470' => 2147483647

(float) '8554104470' => 8554104470

Integers - Manual, Integers can be specified in decimal (base 10), hexadecimal (base 16), octal $​a = 0b11111111; // binary number (equivalent to 255 decimal) in a number beyond the bounds of the integer type will return a float instead. be cast to an integer to round it towards zero, or the round() function provides finer From strings ¶. 4 php: int() function equivalent for bigint type? (int() cuts strings to 2147483647) Sep 4 '15 3 How to create cron job without admin panel in Prestashop Sep 28 '15

This may not be the kind of answer you wanted, but, why not switch to a 64-bit machine?

On my (64-bit Fedora) PC $bigint1 has the value 12312342306 as you desired.

MySQL Column Types :: Chapter 2. Working with Data in MySQL , MySQL has numeric column types for both integer and floating-point values, It is not possible to magically cut the required storage space for a BIGINT For MySQL 3.23.6 and later, FLOAT4 and FLOAT8 are equivalent to FLOAT and DOUBLE. the CONVERT() function to generate a string in any available character set. 8 php: int() function equivalent for bigint type? (int() cuts strings to 2147483647) (int() cuts strings to 2147483647) 7 how to set form attribute on a createElement input with Javascript

It's obviously not possible to replicate the function of (int) exactly for 64-bit numbers on a 32-bit system. (int) returns an int; the best you can do on a 32-bit system for 64-bit numbers is return a string -- but presumably this is really what you're asking for.

As tialaramex pointed out, if you're going to do a lot of work with 64 bit integers, you should run 64 bit PHP. If that's not an option, you can do some work using the bcmath functions -- although I don't see a bcmath function for doing what you've asked.

I'd just write a quick and dirty function:

<?php
var_dump(toint("12312342306A_C243"));
function toint($str) {
        return preg_match('/^[0-9]+/', $str, $matches) ? $matches[0] : 0;
}

Chapter 12 Data Types, 12.2.1 Integer Types (Exact Value) - INTEGER, INT, SMALLINT, TINYINT, always store an exact integer value in a BIGINT column by storing it using a string​. The SUM() and AVG() aggregate functions do not work with temporal values. NATIONAL CHAR (or its equivalent short form, NCHAR ) is the standard SQL way  I'm an Italian web and app developer who have a bachelor degree in Computer Science and more than 5 years' experience programming for the web using HTML5, CSS3, JavaScript and PHP. I mainly use the LAMP stack and frameworks like jQuery, jQuery Mobile, and Cordova (PhoneGap).

MySQL Data Types | Working with Data in MySQL, (int() cuts strings to 2147483647) php: What's the equivalent int() function for bigint type? ( int() cuts big numbers to 2147483647)?. Example: If the declared type contains the string "INT" then it is assigned INTEGER affinity. If the declared type of the column contains any of the strings "CHAR", "CLOB", or "TEXT" then that column has TEXT affinity. Notice that the type VARCHAR contains the string "CHAR" and is thus assigned TEXT affinity.

php - getting intval() using php?, MySQL has numeric data types for integer, floating-point, and fixed-point NULL is actually the empty set, but that is equivalent to the empty string. It is not possible to magically cut the required storage space for a BIGINT column in The BIN() function also can be useful for display bit-field values or the  Below is the implementation of above idea. # Function that convert. # Decimal to binary. def decToBinary(n): # Size of an integer is. # assumed to be 32 bits ; I know that is easy to convert an integer to 8 or 16 bit integer using the number to boolean array function.However, I would like to That is something completely different!.

Edit: the string comes in different forms, and I don't know where the highest number will be. function calcule (integer $a, integer $b) { return $a + $b; } $​num1=5; $num2=6; echo calcule($num1, $num2); Similar Question 7 (7 solutions) : php: int() function equivalent for bigint type? (int() cuts strings to 2147483647)  PHP 6 and MySQL 5 for Dynamic Web Sites Larry Ullman Peachpit Press 1249 Eighth Street Berkeley, CA 94710 510/524-2178 510/524-2221 (fax) Find us on the Web at: www.peachpit.com To report errors, please send a note to: [email protected] Peachpit Press is a division of Pearson Education.

Comments
  • Are you using this number for calculation or as display only? php.net/manual/en/language.types.integer.php recommends casting as float if you really need a number but it does come with some caveats.
  • Sounds like you are running php on a 32 bit system. PHP_INT_MAX will tell you what the largest integer can be. Numbers > PHP_INT_MAX will be transformed into floats.
  • I want to be sure it contains numbers only, and if not, then cut it up to the first non-integer symbol. The result will be put into MySQL db as bigint (int is not enough.) FlyungGuy, you are right, 32 bit system:) That's the local machine, then it will be uploaded to the server...
  • Looks like this is covered pretty well in stackoverflow.com/questions/990406/…
  • Also, when you upload it to the server, if its a 64bit you should have no problem in casting bigger ints there...
  • Is there a specific GMP function that will do what the OP asked?
  • @FrankFarmer It really depends on what the OP wants to do with that number. In his question, he only shows a cast. Anyway, to manage that kind of int, GMP is a good library to use (just like BCMath).