Blog Archives

Arithmetic overflow error converting type to data type numeric

This error usually occurs when the type you are trying to convert to a decimal or numeric is larger than the column or casted type you are converting to.


insert into tablename (decnumber) values (cast(1000.00 as decimal(5,2)))

Since the number specifed is 7 digits long include after the decimal and the converted type can only contain a maximum of 5 digits, you will receive this error.

Changing the table to hold 7,2 and/or changing this in the cast will resolve it.

devshed (forums),

PHP Quick Reference

Escape sequences for print output:

\" - double quote
\' - single quote
\n - new line
\t - tab
\r - carriage return
\$ - dollar sign
\\ - backslash

Max integer and float size (overflow):

//on a 32-bit system
$large_number = 2147483647;
var_dump($large_number);                     // int(2147483647)

$large_number = 2147483648;
var_dump($large_number);                     // float(2147483648)

$million = 1000000;
$large_number =  50000 * $million;
var_dump($large_number);                     // float(50000000000)

//on a 64-bit system
$large_number = 9223372036854775807;
var_dump($large_number);                     // int(9223372036854775807)

$large_number = 9223372036854775808;
var_dump($large_number);                     // float(9.2233720368548E+18)

$million = 1000000;
$large_number =  50000000000000 * $million;
var_dump($large_number);                     // float(5.0E+19)

generate random number:

echo rand() . "\n";
echo rand() . "\n";

echo rand(5, 15);

Get Current Page Name:

function curPageName() {
 return substr($_SERVER["SCRIPT_NAME"],strrpos($_SERVER["SCRIPT_NAME"],"/")+1);

Came across the following on stackoverflow while looking for the PHP equivalent of string.format.

Sprintf (similar to php printf, in c# string.format):

$filter = "content:%1$s title:%1$s^4.0 path.title:%1$s^4.0 description:%1$s ...";
$filter = sprintf($filter, "Cheese");


function format() {
    $args = func_get_args();
    if (count($args) == 0) {
    if (count($args) == 1) {
        return $args[0];
    $str = array_shift($args);
    $str = preg_replace_callback('/\\{(0|[1-9]\\d*)\\}/', create_function('$match', '$args = '.var_export($args, true).'; return isset($args[$match[1]]) ? $args[$match[1]] : $match[0];'), $str);
    return $str;

StackOverflow, “C# String.Format() Equivalent in PHP?”,

Facebook is down!

As of approx. October 6, 12:30 AM EST GMT -5 Facebook HTTP services seemed to have gone down.

Ping tests were successful during this time, however, attempts to load the website resulted in timeouts.

More updates tomorrow morning after some official announcements have been made. My initial speculation is botnet and/or DoS attack but this is very preliminary.

Update 12:49 AM EST GMT -5

Looks like is down as well…

Update 10:15 AM EST GMT -5

Some other sites also seem to have gone down, reddit, apple store and digg among others.