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Doc Bug #77064 Return type is contradictory
Submitted: 2018-10-26 06:22 UTC Modified: 2018-10-26 08:05 UTC
From: fabian dot picone at gmail dot com Assigned:
Status: Open Package: Date/time related
PHP Version: Irrelevant OS:
Private report: No CVE-ID: None
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 [2018-10-26 06:22 UTC] fabian dot picone at gmail dot com 
Description:
------------
---
From manual page: https://php.net/datetime.format
---

This doc has something that does not match.

The description of the method is "public string DateTimeImmutable::format ( string $format )".

But the return value is documented as "Returns the formatted date string on success or FALSE on failure." .

What is correct now, is the return a string or mixed?

My tests showed up to result in string, could not break it to receive bool.

So is this internally casted to string? Then you should adapt the return documentation.

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 [2018-10-26 08:05 UTC] cmb@php.net
-Package: PHP Language Specification +Package: Date/time related
 [2018-10-26 08:05 UTC] cmb@php.net 
::format() returns FALSE, if an argument has an incompatible
type[1], or if the DateTimeImmutable instance has not been
properly initialized[2].

Regarding the return type declaration, see
<http://news.php.net/php.doc/969386834>ff.

[1] <https://github.com/php/php-src/blob/php-7.3.0RC4/ext/date/php_date.c#L3170-L3172>
[2] <https://github.com/php/php-src/blob/php-7.3.0RC4/ext/date/php_date.c#L3174>
 
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