Doc #79050 [Opn->Ver]: Levenshteins third argument not implemented and typed as string
| From: | cmb@php.net | Date: | Tue, 31 Dec 2019 13:44:48 +0000 |
| Subject: | Doc #79050 [Opn->Ver]: Levenshteins third argument not implemented and typed as string | ||
| References: | 1 | Groups: | php.doc.bugs |
| Request: | Send a blank email to doc-bugs+get-17175@lists.php.net to get a copy of this message | ||
Edit report at https://bugs.php.net/bug.php?id=79050&edit=1
ID: 79050
Updated by: cmb@php.net
Reported by: php at conscribo dot nl
Summary: Levenshteins third argument not implemented and
typed as string
-Status: Open
+Status: Verified
Type: Documentation Problem
-Package: Documentation problem
+Package: Strings related
Operating System: Debian
PHP Version: 7.3.13
Block user comment: N
Private report: N
New Comment:
levenshtein() has actually three alternative signatures; the one
you're using in the test script is
levenshtein(string $str1, string $str2, string $callback_name): int
but this signature is still not implemented (that's why you're
getting the warning). Note that $callback_name is indeed a
string, not a callable.
Previous Comments:
------------------------------------------------------------------------
[2019-12-31 12:54:34] php at conscribo dot nl
Description:
------------
---
From manual page: https://php.net/function.levenshtein
---
The documentation states that arguments 3 to 5 support weights for various actions. These are not
implemented (not documented).
The documentation states the weights should be integers. Running with php strict_types reveals it
only accepts strings.
Test script:
---------------
<?php
declare(strict_types=1);
$str1 = 'abc';
$str2 = 'abcd';
echo levenshtein($str1, $str2, 0);
//output:
//PHP Fatal error: Uncaught TypeError: levenshtein() expects parameter 3 to be //string, integer
given
------
<?php
declare(strict_types=1);
$str1 = 'abc';
$str2 = 'abcd';
echo levenshtein($str1, $str2, '0');
//output:
// PHP Warning: levenshtein(): The general Levenshtein support is not there yet
------------------------------------------------------------------------
--
Edit this bug report at https://bugs.php.net/bug.php?id=79050&edit=1