Newsgroups: php.internals
Path: news.php.net
Xref: news.php.net php.internals:115304
To: internals@lists.php.net
References: <CAF+90c--_H+=2yqkLKkFyGhKhwVJUJS8iRWw+hbZaSW1_q0xHw@mail.gmail.com>
 <CAESVnVpbteQTAmbKM3ugQwcXMi6isjGTmDasF5N473wZPZyaog@mail.gmail.com>
 <CAF+90c-=UG9pP=n7xX1nSfEKgnKcZZtsAT7CbWFtoUS0rc3ksQ@mail.gmail.com>
Message-ID: <983059d1-3abc-feed-8ba4-bfe4c62ca05a@gmail.com>
Date: Mon, 5 Jul 2021 16:13:12 +0100
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101
 Thunderbird/78.11.0
MIME-Version: 1.0
In-Reply-To: <CAF+90c-=UG9pP=n7xX1nSfEKgnKcZZtsAT7CbWFtoUS0rc3ksQ@mail.gmail.com>
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding: 7bit
Content-Language: en-GB
Subject: Re: [PHP-DEV] [VOTE] First-class callable syntax
From: rowan.collins@gmail.com (Rowan Tommins)

On 05/07/2021 15:35, Nikita Popov wrote:
> The actual echo syntax is echo "Foo". PHP allows you to write echo("Foo")
> in the same way it allows you to write echo((((("Foo"))))). Don't do it :)


Indeed. Note that this is valid:

echo "hello", " ", "world";

But this is not:

echo("hello", " ", "world");


I have in the past had a bug make it into production because the 
parentheses around a call to "include" were mis-placed because of this 
incorrect belief that it is "function-like":

if ( include('some_file.php') && bar() )

Is equivalent to this (will always run bar(), then attempt to include 
either (string)true or (string)false):

if ( include ('some_file.php' && bar()) )

When what was intended was this:

if ( (include 'some_file.php') && bar() )


Regards,

-- 
Rowan Tommins
[IMSoP]