PHP - intval() Function
Definition and Usage
The function intval() gets the integer value of a variable.
Syntax
int intval (mixed $value, int $base = 10 )
Parameters
| Sr.No |
Parameter & Description |
| 1 |
value
Mandatory. This parameter serves as the variable which needs to be converted to its integer value.
|
| 2 |
base
Optional. It has no effect unless the value parameter is a string.
If base is not specified or 0, the base used is determined by the format of value:
- If string contains a "0x" (or "0X") prefix, the base is taken as 16 (hex).
- If string starts with "0", the base is taken as 8 (octal).
- By default, the base is taken as 10 (decimal).
|
Return Values
This function returns interger value of value on success or 0 on failure. Empty arrays return 0, non-empty arrays return 1.
Dependencies
PHP 4 and above
Example
Following example demonstrates return values with different types of variables −
<?php
echo intval(100).'<br>'; //100
echo intval(100.11).'<br>'; //100
echo intval('100').'<br>'; //100
echo intval(+100).'<br>'; //100
echo intval(-100).'<br>'; //-100
echo intval(0104).'<br>'; //68
echo intval('0104').'<br>'; //104
echo intval(1e10).'<br>'; //10000000000
echo intval('1e10').'<br>'; //10000000000
echo intval(0x2B).'<br>'; //43
echo intval(10400000).'<br>'; //10400000
echo intval(420000000000000000000).'<br>';//-4275113695319687168
echo intval('420000000000000000000').'<br>';//9223372036854775807
echo intval(11, 12).'<br>'; //11
echo intval('11', 12).'<br>'; //13
?>
Output
This will produce following result −
100
100
100
100
-100
68
104
10000000000
10000000000
43
10400000
-4275113695319687168
9223372036854775807
11
13
php_variable_handling_functions.htm
