Introduction
In this article I explain the Intval() function in PHP. The Intval() function returns the integer value of a variable. You can not use the intval() function on an object.
Syntax
| Parameter |
Description |
| Var name |
Scalar value to be converted into an integer |
| Base |
Base for the conversion |
The default base is ten.
Example
In the following example, the empty array returns the output zero and the nonempty array returns the one:
<html>
<body bgcolor="#FFFFCC">
<?php
echo intval(33)."<br>";
echo intval(3.4)."<br>";
echo intval('31')."<br>";
echo intval('+321')."<br>";
echo intval('-313')."<br>";
echo intval(0213)."<br>";
echo intval('032')."<br>";
echo intval(2e10)."<br>";
echo intval('1e10')."<br>";
echo intval(0x1A)."<br>";
echo intval(312000000)."<br>";
echo intval(3430000000000000000)."<br>";
echo intval('313000000000000000000')."<br>";
echo intval(53, 9)."<br>";
echo intval('53', 9)."<br>";
echo intval(array())."<br>";
echo intval(array('class', 'name'));
?>
</body>
</html>
The maximum value depends on the system such as 32-bit system integers are in the range -2147483648 to 2147483647 and 64-bit system integers are in the range 9223372036854775807.
The strings will most likly return zero although this depends on the leftmost characters of the string.
Output
![Intval Function in PHP.jpg]()