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Bug 258109

Summary:	Invalid warnings shown for variable variables ($$) in php
Product:	php	Reporter:	sherif.onion
Component:	Editor	Assignee:	Tomas Mysik <tmysik>
Status:	NEW ---
Severity:	normal	CC:	junichi11
Priority:	P4
Version:	8.1
Hardware:	All
OS:	All
Issue Type:	DEFECT	Exception Reporter:

Description sherif.onion 2016-02-23 09:23:38 UTC

Invalid editor warnings are shown if you use variable variables in php.


Here is a simple (reproducible) example:

$a = 'hello';
$$a = ' world';
echo $hello;  // produces 'world'
echo $a . $$a; // produces 'hello world'

The editor shows warnings as follows:
- Lines 1 & 2 "You should only use one assignment (2 used)..."
- Line 3 "$hello is not initialised" (it is initialised and has a value 'world').

Comment 1 junichi11 2016-03-12 23:49:46 UTC

(In reply to sherif.onion from comment #0)
> - Lines 1 & 2 "You should only use one assignment (2 used)..."

$$a should be ignored.

> - Line 3 "$hello is not initialised" (it is initialised and has a value
> 'world').

Probably, it's hard to fix this(Line3).

Thanks.

Comment 2 Tomas Mysik 2016-06-02 12:08:48 UTC

IMHO using "$$" is not a good practice, it makes code really difficult to read and understand.

Thanks for reporting.