w3resource

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

PHP - how to create a newline character?

Only double quoted strings interpret the escape sequences \r and \n as '0x0D' and '0x0A' respectively, so you want:

"\r\n"

Single quoted strings, on the other hand, only know the escape sequences \\ and \'.

So unless you concatenate the single quoted string with a line break generated elsewhere (e. g., using double quoted string "\r\n" or using chr function chr(0x0D).chr(0x0A)), the only other way to have a line break within a single quoted string is to literally type it with your editor:

$s = 'some text before the line break
some text after';

Make sure to check your editor for its line break settings if you require some specific character sequence (\r\n for example).

Ref : https://bit.ly/3hcyege