Bug->Doc #80032 [Opn->Ver]: Can't use valid callback as default value for callable parameters
| From: | requinix@php.net | Date: | Fri, 28 Aug 2020 21:01:00 +0000 |
| Subject: | Bug->Doc #80032 [Opn->Ver]: Can't use valid callback as default value for callable parameters | ||
| References: | 1 | Groups: | php.doc.bugs |
| Request: | Send a blank email to doc-bugs+get-17835@lists.php.net to get a copy of this message | ||
Edit report at https://bugs.php.net/bug.php?id=80032&edit=1
ID: 80032
Updated by: requinix@php.net
Reported by: antonfedonyuk at gmail dot com
Summary: Can't use valid callback as default value for
callable parameters
-Status: Open
+Status: Verified
-Type: Bug
+Type: Documentation Problem
-Package: Compile Failure
+Package: *General Issues
Operating System: Any
PHP Version: 7.4.9
Block user comment: N
Private report: N
Previous Comments:
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[2020-08-28 19:16:11] antonfedonyuk at gmail dot com
Description:
------------
Can't use valid callback(string or array) as default value of callable parameters. It's
generate fatal error: Default value for parameters with callable type can only be NULL. The guide
doesn't contain any notes on this issue.
Test script:
---------------
<?php
function test(callable $callback = 'strtoupper')
{
return $callback();
}
?>
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--
Edit this bug report at https://bugs.php.net/bug.php?id=80032&edit=1