php warning a non numeric value encountered
Warning: A non-numeric value encountered
Recently updated to PHP 7.1 and start getting following error
Warning: A non-numeric value encountered in on line 29
Here is what line 29 looks like
On localhost all works fine..
21 Answers 21
Not exactly the issue you had but the same error for people searching.
This happened to me when I spent too much time on JavaScript.
It seems that in PHP 7.1, a Warning will be emitted if a non-numeric value is encountered. See this link.
Here is the relevant portion that pertains to the Warning notice you are getting:
New E_WARNING and E_NOTICE errors have been introduced when invalid strings are coerced using operators expecting numbers or their assignment equivalents. An E_NOTICE is emitted when the string begins with a numeric value but contains trailing non-numeric characters, and an E_WARNING is emitted when the string does not contain a numeric value.
You can solve the problem without any new logic by just casting the thing into the number, which prevents the warning and is equivalent to the behavior in PHP 7.0 and below:
Hello, In my case using (WordPress) and PHP7.4 I get a warning about numeric value issue. So I changed the old code as follow:
From:
$val = ((int)$oldval + (int)$val);
Now the warning disappeared 🙂
This was happening to me specifically on PHPMyAdmin. So to more specifically answer this, I did the following:
Hope that save’s someone some trouble.
I encountered the issue in phpmyadmin with PHP 7.3. Thanks @coderama, I changed libraries/DisplayResults.class.php line 855 from
and within your loop now you can use this
It should solve your problem.
Check if you’re not incrementing with some variable that its value is an empty string like ».
I just looked at this page as I had this issue. For me I had floating point numbers calculated from an array but even after designating the variables as floating points the error was still given, here’s the simple fix and example code underneath which was causing the issue.
that’s the code I had which looped and created new html div elements. The code worked fine and the elements were formed, but i got the same warning in the error_log.
After reading the useful other answers, I figured that I was summing up a string and a number in the erroneous line. So I changed the code at that line to
Now the code works as earlier but with no warnings this time. Hope this example would be useful to someone.
Solve this error on WordPress
Warning: A non-numeric value encountered in C:\XAMPP\htdocs\aad-2\wp-includes\SimplePie\Parse\Date.php on line 694
Simple solution here!
That’s happen usually when you con-cat strings with + sign. In PHP you can make concatenation using dot sign (.) So sometimes I accidentally put + sign between two strings in PHP, and it show me this error, since you can use + sign in numbers only.
Make sure that your column structure is INT.
If non-numeric value encountered in your code try below one. The below code is converted to float.
in PHP if you use + for concatenation you will end up with this error. In php + is a arithmetic operator. https://www.php.net/manual/en/language.operators.arithmetic.php
wrong use of + operator:
use . for concatenation
You need to verify that you are dealing with a number:
PHP 7.1-7.4
Fix these warnings! In PHP 8, this becomes a fatal error: «Uncaught TypeError: Unsupported operand types».
PHP 8
Code that used to produce the warning «A non well formed numeric value encountered» in PHP 7.1-7.4 now gives this warning instead. This happens when you have a «trailing string», which is a string that starts with a number, but is followed by something non-numeric. (It will still do the math but you should fix this! In the future it may be upgraded to an error.) For example:
Warning: A non-numeric value encountered in [. ][. ] on line X
33
Любое обновление, это, конечно, нужное дело! но вместе с обновлением могут прийти и какие-то ошибки в работу сайта, — например, я столкнулся с такой закавыкой: выскочило предупреждение в блоке, где использовались миниатюры постов. Предупреждение гласило Warning: A non-numeric value encountered in /home/users/c/что-то_ещё/domains/домен.ru/wp-includes/media.php on line 647 …это сообщает нам о том, что в операциях php обработки используются не числовые значения! …далее подробнее…с вариантами решения задачи…
как отключить предупреждение на фронтенде о не числовой php обработке
Warning: A non-numeric value encountered in …
Во-первых, нужно пояснить: данное сообщение всего-то предупреждение (в PHP 7.1), но не ошибка! — предупреждение!
Предупреждение сообщает о том, что в php операциях используются так называемые не числовые значения (можете воспользоваться, к примеру, Гугл переводчиком).
Далее в сообщении на сайте указаны путь к файлу и номер строки, в которой сгенерировано это предупреждение.
Отключить вывод warning-предупреждения можно таким способом: (сразу говорю: этот вариант не совсем правильный; или совсем — не правильный, ибо мы предполагаем править ядро WP, а это нецелесообразно, ибо с очередными обновами WP правки затрутся!) рассматриваем его только знаний для (следующий способ из статьи — более верное решение…).
…пройдя по которому, нужно отыскать функцию: