NewSourceMedia Blog » string

PHP Validation Numbers Only From

admin — Tue, 30 Nov 1999 06:00:00 +0000

How to check for number values only and block or convert letter strings to integers. Question: How to validate number values to and block all letters and symbol in a form. Answer: You can check the value or convert the value to an integer (number). 1) Check a value using is_int() to finds whether the given variable is an integer 2) Note: To test if a variable is a number or a numeric string (such as form input, which is always a string), you must use is_numeric(). 3) Convert the value to an integer (number) using settype.



settype($foo, "integer"); // $foo is now 5 (integer)
settype($bar, "string"); // $bar is now "1" (string)
?>

or you can use int to do the trick.



Formatting Numbers in Flash for Commas
admin — Sat, 15 Sep 2007 00:22:11 +0000
Here is how to use actionscript to format a number in Flash with commas per thousands.


my_number = "12587654325";

// array in sections of 3 to separate with commas
trace(my_number);
var dollar_array:Array = new Array();
var start:Number;
var end:Number = my_number.length;
trace(my_number.length);
while (end > 0) {
trace(end);
start = Math.max(end - 3, 0);
dollar_array.unshift(my_number.slice(start, end));
end = start;
}

// assign a comma delimited value from dollar_array
my_number = dollar_array.join(",");
trace(my_number);


Split() by newline and return using PHP
admin — Sat, 27 Mar 2004 00:22:11 +0000
How to create an array by using the split() function on multiple newlines and returns.


Introduction:

I was having a problem trying to split a string of multiple lines from an online form using the flowing code:




This was producing an unexpected line break. I searched the web to see if anyone had the same problem and found that I needed to check for "returns" (\r) also. So now when I'm splitting data by lines, I use the following code: