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Only variable references should be returned by reference - Codeigniter

After the server PHP upgrade I am getting the following error with PHP Version 5.6.2 on Apache 2.0

A PHP Error was encountered
Severity: Notice
Message: Only variable references should be returned by reference
Filename: core/Common.php
Line Number: 257

How can I fix this?

like image 365
Techie Avatar asked Oct 10 '22 04:10

Techie


2 Answers

Edit filename: core/Common.php, line number: 257

Before

return $_config[0] =& $config; 

After

$_config[0] =& $config;
return $_config[0]; 

Update

Added by NikiC

In PHP assignment expressions always return the assigned value. So $_config[0] =& $config returns $config - but not the variable itself, but a copy of its value. And returning a reference to a temporary value wouldn't be particularly useful (changing it wouldn't do anything).

Update

This fix has been merged into CI 2.2.1 (https://github.com/bcit-ci/CodeIgniter/commit/69b02d0f0bc46e914bed1604cfbd9bf74286b2e3). It's better to upgrade rather than modifying core framework files.

like image 471
Techie Avatar answered Oct 23 '22 15:10

Techie


this has been modified in codeigniter 2.2.1...usually not best practice to modify core files, I would always check for updates and 2.2.1 came out in Jan 2015

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Chad Avatar answered Oct 23 '22 15:10

Chad