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PHP : intval() function

Description

The intval() function is used to get the integer value of a variable.

Version:

(PHP 4 and above)

Syntax:

intval(var_name, base) 

Parameter:

Name Description Required /
Optional
Type
var_name The scalar value being converted to an integer Required Mixed*
base The base for the conversion. (default is base 10) Optional Integer

*Mixed : Mixed indicates that a parameter may accept multiple (but not necessarily all) types.

Return value

The integer value of var on success, or 0 on failure

Value Type : Integer.

Example :

<?php
echo intval(102).'<br>';
echo intval(102.22).'<br>';
echo intval('102').'<br>';
echo intval(+102).'<br>';
echo intval(-102).'<br>';
echo intval(0102).'<br>';
echo intval('0002').'<br>';
echo intval(1e20).'<br>';
echo intval(0x1B).'<br>';
echo intval(10200000).'<br>';
echo intval(10200000000000000000).'<br>';
echo intval(10, 2).'<br>';
echo intval('10', 2).'<br>';
?>

Output :

102
102
102
102
-102
66
2
0
27
10200000
0
10
2

View the example in the browser

Practice here online :

See also

PHP Function Reference

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Next: is_array



PHP: Tips of the Day

Returns true if the given string is a palindrome, false otherwise

Example:

<?php
function tips_palindrome($string)
{
  return strrev($string) === (string) $string;
}

print(tips_palindrome('malayalam'));
print("\n");
print(tips_palindrome(151));

?>

Output:

1
1