Error: Use of undefined constant allowhtml and undefined index
Run the program reported the following error, where is the problem?
Notice:use of undefined constant allowhtml-assumed ' allowhtml ' in/home/wwwroot/kaimen360_com/public_html/uc_client/ Model/base.php on line 69
notice:undefined index:allowhtml in/home/wwwroot/kaimen360_com/public_html/uc_client/model/base.php on line 69
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An undefined (nonexistent) association key was used
Error message has been given an error location/home/wwwroot/kaimen360_com/public_html/uc_client/model/base.php on line 69
Please take a look at it yourself.
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You are prompted that there is no data for that key name (not present) in the array allowhtml
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The Allowhtml key value in the array is not present and is used.
For example:
$arr = Array (' a ' =>123);
echo $arr [' allowhtml ']; This will cause the hint to be undefined.
?>
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$a = array ();
echo $a [allowhtml];
The associated key name is not quoted (not a string), and PHP first checks whether it is a constant, because there is no definition, so there is
Notice:use of undefined constant allowhtml-assumed ' allowhtml ' in ...
It then checks whether the array has the same name as the string, because there is no
Notice:undefined index:allowhtml in ...
It's because you didn't write robust code.
Default error_reporting = E_all in php.ini
You can change to error_reporting = E_all ^ E_notice
or execute error_reporting at the beginning of the program (e_all ^ e_notice);
To compensate you for your mistakes.
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Reference:
Quote: Reference:
The Allowhtml key value in the array is not present and is used.
For example:
$arr = Array (' a ' =>123);
echo $arr [' allowhtml ']; This will cause the hint to be undefined.
?>
How to solve it?
I migrated the server to report such errors, not migrating the server well before, this is why?
That's because your old server is set to not output notice,warning errors, so it is not displayed.
You can add to the top of the program
error_reporting (e_all^e_notice^e_warning);
Error_reporting (e_all^e_notice^e_warning); Add this sentence to block the warning and prompt errors.
$arr = Array (' a ' =>123);
echo $arr [' allowhtml ']; There's no notice here.
?>
