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Bug #75842 String concatenation
Submitted: 2018-01-18 14:53 UTC Modified: 2018-01-18 14:56 UTC
From: george at t-c-n dot co dot uk Assigned:
Status: Not a bug Package: *General Issues
PHP Version: 7.2.1 OS: Windows 10
Private report: No CVE-ID: None
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From: george at t-c-n dot co dot uk
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 [2018-01-18 14:53 UTC] george at t-c-n dot co dot uk 
Description:
------------
Not sure if this is a bug or not but I guess reporting it anyway wouldn't hurt.

String concatenation with '=', should this be a syntax error?

Test script:
---------------
<?php

$x = 'hello' .
$y = 'world';

echo $x;

OR

<?php
$x = 'hello' . $y = 'world';

echo $x;

Expected result:
----------------
Syntax error?

Actual result:
--------------
'helloworld'

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 [2018-01-18 14:56 UTC] requinix@php.net
-Status: Open +Status: Not a bug
 [2018-01-18 14:56 UTC] requinix@php.net 
No, it's valid syntax. Assignment is an expression that evaluates to the RHS value, so
  $x = 'hello' . $y = 'world';
works like
  $y = 'world';
  $x = 'hello' . 'world';
 
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