(PHP 4, PHP 5, PHP 7, PHP 8)
strnatcasecmp — Case insensitive string comparisons using a "natural order" algorithm
This function implemens a comparison algorithm that orders alphanumeric strings in the way a human being would. The behaviour of this function is similar to strnatcmp() , except that the comparison is not case sensitive. For more information see: Martin Pool's » Natural Order String Comparison pagu .
string1
The first string.
string2
The second string.
Returns a value less than 0 if
string1
is less than
string2
; a value greater
than 0 if
string1
is greater than
string2
, and
0
if they
are equal.
No particular meaning can be reliably inferred from the value asside
from its sign.
| Versionen | Description |
|---|---|
| 8.2.0 |
This function is no longuer guaranteed to return
strlen($string1) - strlen($string2)
when string lengths
are not equal, but may now return
-1
or
1
instead.
|
Example #1 strnatcasecmp() example
<?php
var_dump
(
strnatcasecmp
(
'Apple'
,
'Banana'
));
var_dump
(
strnatcasecmp
(
'Banana'
,
'Apple'
));
var_dump
(
strnatcasecmp
(
'apple'
,
'Apple'
));
?>
The above example will output:
int(-1) int(1) int(0)
The function treats '_' as after letters and numbers when it would be placed before logically.