Turn off deprecated errors in PHP 5.3

Question

My server is running PHP 5.3 and my WordPress install is spitting these errors out on me, causing my session_start() to break.

Deprecated: Assigning the return value of new by reference is deprecated in /home//public_html/hub/wp-settings.php on line 647

Deprecated: Assigning the return value of new by reference is deprecated in /home//public_html/hub/wp-settings.php on line 662

Deprecated: Assigning the return value of new by reference is deprecated in /home//public_html/hub/wp-settings.php on line 669

Deprecated: Assigning the return value of new by reference is deprecated in /home//public_html/hub/wp-settings.php on line 676

Deprecated: Assigning the return value of new by reference is deprecated in /home//public_html/hub/wp-settings.php on line 712

This is annoying, but I do not want to turn off on screen error reporting. How do I disable these bothersome deprecated warnings?

I am running WordPress 2.9.2.

Isn't 3.3.1 the current up to date version of wordpress? – Shadur Mar 12 '12 at 10:04 — Shadur, Mar 12 '12 at 10:04
he seems to like an old php with old wordpress – Qchmqs Jun 07 '12 at 01:02 — Qchmqs, Jun 07 '12 at 01:02

score 260 · Accepted Answer · edited Nov 10 '15 at 17:27

260

You can do it in code by calling the following functions.

error_reporting(E_ERROR | E_WARNING | E_PARSE | E_NOTICE);

or

error_reporting(E_ALL ^ E_DEPRECATED);

edited Nov 10 '15 at 17:27

Toby Allen

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answered May 10 '10 at 15:14

Robus

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Thank you Robus, Will this kill any php error reporting as well? – atwellpub May 10 '10 at 15:16
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Nope, the first one basically tells php to show ERROR/WARNING/PARSE/NOTICE errors, the second one tells php to show all but DEPRECATED errors. – Robus May 10 '10 at 15:17
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Using PHP 5.5.9 on Ubuntu "error_reporting = E_ALL & ~E_DEPRECATED & ~E_STRICT" Have no effect.... but, in my example, "@mysql_connect();" do the trick :-( – molokoloco Feb 04 '16 at 14:40
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@molokoloco you did it wrong twice. First you did not fix a thing. You just silenced it. 2nd, you still using `mysql` which is deprecated. You should at least switch to `mysqli` – Marcin Orlowski Mar 19 '16 at 02:19
Doesn't work. Is it overwritten somewhere? Where do you put this? – Alex Apr 12 '17 at 19:12
what's the difference between `E_ALL ^ E_DEPRECATED` and the `E_ALL & ~E_DEPRECATED` syntax ? – beppe9000 Jun 22 '22 at 12:57
@beppe9000 Both remove the `E_DEPRECATED`-bit from the bit mask. The first by XOR-ing the value, the second by AND-ing the opposite of the value. – csabinho Aug 04 '22 at 08:16
@csabinho thx for clarifying that – beppe9000 Aug 06 '22 at 18:52

score 34 · Answer 2 · edited Nov 24 '19 at 00:56

34

To only get those errors that cause the application to stop working, use:

error_reporting(E_ALL ^ (E_NOTICE | E_WARNING | E_DEPRECATED));

This will stop showing notices, warnings, and deprecated errors.

edited Nov 24 '19 at 00:56

Peter Mortensen

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answered Feb 24 '12 at 07:38

codefreak

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Simon H · Answer 3 · 2015-11-11T06:59:12.950

25

I needed to adapt this to

error_reporting = E_ALL & ~E_DEPRECATED

edited Nov 11 '15 at 06:59

answered Aug 21 '10 at 09:22

Simon H

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score 16 · Answer 4 · edited Nov 24 '19 at 00:52

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You have to edit the PHP configuration file. Find the line

error_reporting = E_ALL

and replace it with:

error_reporting = E_ALL ^ E_DEPRECATED

If you don't have access to the configuration file you can add this line to the PHP WordPress file (maybe headers.php):

error_reporting(E_ALL ^ E_DEPRECATED);

edited Nov 24 '19 at 00:52

Peter Mortensen

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answered May 10 '10 at 15:15

Kreker

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It's much better to add this to `wp-config.php`. It's intended to be edited with configuration settings. – Nilpo Mar 19 '17 at 00:12

score 14 · Answer 5 · answered Mar 28 '14 at 18:11

I just faced a similar problem where a SEO plugin issued a big number of warnings making my blog disk use exceed the plan limit.

I found out that you must include the error_reporting command after the wp-settings.php require in the wp-config.php file:

   require_once( ABSPATH .'wp-settings.php' );
   error_reporting( E_ALL ^ ( E_NOTICE | E_WARNING | E_DEPRECATED ) );

by doing this no more warnings, notices nor deprecated lines are appended to your error log file!

Tested on WordPress 3.8 but I guess it works for every installation.

this was the only solution that works – Salem Oct 31 '22 at 22:54 — Salem, Oct 31 '22 at 22:54

score 12 · Answer 6 · edited Nov 24 '19 at 00:55

12

All the previous answers are correct. Since no one have hinted out how to turn off all errors in PHP, I would like to mention it here:

error_reporting(0); // Turn off warning, deprecated,
                    // notice everything except error

Somebody might find it useful...

edited Nov 24 '19 at 00:55

Peter Mortensen

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answered Oct 09 '11 at 02:44

sudip

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score 11 · Answer 7 · edited Nov 24 '19 at 00:57

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In file wp-config.php you can find constant WP_DEBUG. Make sure it is set to false.

define('WP_DEBUG', false);

This is for WordPress 3.x.

edited Nov 24 '19 at 00:57

Peter Mortensen

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answered Jan 24 '13 at 13:18

Audrius

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score 6 · Answer 8 · answered Feb 10 '17 at 11:04

6

I tend to use this method

$errorlevel=error_reporting();
$errorlevel=error_reporting($errorlevel & ~E_DEPRECATED);

In this way I do not turn off accidentally something I need

answered Feb 10 '17 at 11:04

realtebo

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That gives you less control. You're assuming that whatever is currently configured is correct. Better to set it directly as needed so that you don't get overlapping configurations. – Nilpo Mar 19 '17 at 00:13
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Understand. Every case is different. – realtebo Mar 19 '17 at 16:47
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This is nevertheless the best answer. It is the only one that directly answers the question: only disable E_DEPRECATED, without any side effects. – Sygmoral Jan 12 '20 at 15:01
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In fact it should be $errorlevel=error_reporting(); error_reporting($errorlevel & ~E_DEPRECATED); but the idea is the best solution. – cootje Apr 01 '23 at 15:22
@cootje: you're right, the 2nd assignment isn't strictly needed; I've the habit to save in vars new config when changed (and I save old value in a $_old var of course to be able to restore in a 2nd moment if needed) – realtebo Apr 02 '23 at 10:08

score 1 · Answer 9 · answered Jan 18 '23 at 08:57

If PHP warnings are breaking things in WordPress, but you still want to know what the warnings are, you can disable displaying PHP errors/warnings and only send them to the log file:

define( 'WP_DEBUG', true );
define( 'WP_DEBUG_DISPLAY', false );
define( 'WP_DEBUG_LOG', true );

dheerendra · Answer 10 · 2017-12-16T10:18:37.183

-3

this error occur when you change your php version: it's very simple to suppress this error message

To suppress the DEPRECATED Error message, just add below code into your index.php file:

init_set('display_errors',False);

edited Dec 16 '17 at 10:18

answered Dec 16 '17 at 10:00

dheerendra

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don't do that, that hides all error messages, not only for depreciations. – tanaydin Sep 02 '19 at 12:17

Turn off deprecated errors in PHP 5.3

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