Add an Integer value

<?
$origVar = 100;
$origVar += 25;
echo "<P>Added a value, now it's $origVar</P>";

?>

1.	Adding two integers together
2.	++$answer and $answer++
3.	Assign an integer value this way
4.	Calculating a date interval with epoch timestamps
5.	Integer calculation
6.	Integer values can be signed and unsigned in the range from –2,147,483,648 to 2,147,483,647.
7.	Integers can be specified using any of the following syntaxes
8.	Storing Integers in PHP
9.	Using typecasting to convert numbers to strings
10.	To specify a number in hexadecimal, precede it with 0x.
11.	Addendum: finding the largest integer
12.	Int value overflow
13.	Integer value compare with equal sign
14.	Calculating Discount
15.	Divide the two values and print the result
16.	Subtract the two values and print the result
17.	Multiply the two values and print the result
18.	Add the two integer values and print the result.
19.	Subtracted an Integer value
20.	Add a PHP block and create a variable that holds an integer

Add an Integer value : Integer « Data Type « PHP