The intval() function is an inbuilt function in PHP which returns the integer value of a variable.
Syntax:
int intval ( $var, $base )
Parameters: This function accepts two parameters out of which one is mandatory while the other one is optional. Parameters are described below:
- $var: It is a mandatory parameter serves as the variable which needs to be converted to its integer value.
- $base: It ia a optional parameter specifies the base for conversion of $var to its corresponding integer. If $base is not specified.
- If $var contains 0x (or 0X) as prefix, the base is taken as 16.
- If $var starts with 0, the base is taken as 8
- Otherwise, the base is taken as 10.
Return Value: It returns the corresponding integer value of $var.
Examples:
Input : $var = '120', $base = 8
Output : 80
Input : $var = 0x34
Output : 52
Input : $var = 034
Output : 28
Below programs illustrate the use of intval() function in PHP:
Program 1:
<?php
$var = '7.423' ;
$int_value = intval ( $var );
echo $int_value ;
?>
|
Program 2:
<?php
$var = 0x423;
$int_value = intval ( $var );
echo $int_value ;
?>
|
Program 3:
<?php
$var = "64" ;
echo intval ( $var ). "\n" . intval ( $var , 8);
?>
|
Reference: http://php.net/manual/en/function.intval.php
Last Updated :
12 Sep, 2019
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