ID: 12658
Updated by: jmcastagnetto
Reported By: [EMAIL PROTECTED]
Old Status: Feedback
Status: Analyzed
Bug Type: Scripting Engine problem
Operating System: Red Hat Linux, Win2000 sp2
PHP Version: 4.0.6
Old Assigned To: jmcastagnetto
Assigned To:
New Comment:
My mistake, did not understood the bug report correctly.
More testing shows that calls to undefined functions do
not generate an error level that can be catched by the error handling mechanism. Not
even when using:
error_reporting(E_ALL);
which just aborts execution of the script and gives the msg:
<b>Fatal error</b>: Call to undefined function: whatever() in <b>junk.php</b> on
line <b>24</b><br>
whereas when using:
error_reporting(E_CORE);
just "eats up" the error (i.e. no fatal error msg is generated by the interpreter),
and the error handling function does not have time to do anything, so the script
aborts w/o any output.
Two issues need to be addressed:
1) The inconsitent behavior of E_CORE vs E_ALL (PHP 4.0.6), in view of the fact the
E_ALL includes E_CORE (as per Zend/zend_errors.h)
2) Whether is desirable to allow catching of fatal errors using the
set_error_handler() and error_reporting() functions
If the answer to (2) is no, then this should be clarified in the manual.
Previous Comments:
------------------------------------------------------------------------
[2001-08-08 15:48:54] [EMAIL PROTECTED]
The assertion "... Seems that PHP cannot redirect 'Call to undefined function' errors
to a custom error
handler..." is incorrect.
This seems to be a problem w/ the person reporting the bug *not* using the
error_reporting() function, as it is clearly noted in the manual example, changing the
code to read:
<?php
define (ERROR,E_USER_WARNING);
define (WARNING,E_USER_NOTICE);
// set the error reporting level for this script
error_reporting (FATAL | ERROR | WARNING);
// Define a simple error handler
function error_handler ($level, $message, $file, $line, $context) {
echo "An error of level $level was generated in file $file on line $line.
\nThe error message was: $message \nThe following variables were set in the
scope that the error occurred in: <blockquote> ";
print_r ($context);
print "\n</blockquote>";
}
// Set the error handler to the error_handler() function
set_error_handler ('error_handler');
trigger_error ("Some other error");
whatever();
?>
The output is:
An error of level 1024 was generated in file bugtest.php on line 20.
The error message was: Some other error
The following variables were set in the
scope that the error occurred in: <blockquote>
Array (
[PWD] => /tmp
[... snip ...]
[_] => /usr/local/bin/php
[PHP_SELF] =>
[argv] => Array
(
[0] => bugtest.php
)
[argc] => 1
[HTTP_POST_VARS] => Array
(
)
[HTTP_GET_VARS] => Array
[...snip...]
</blockquote>
This was tested with 4.0.6 on RH 7.1, more information is requested from the person
reporting the bug, before it is reclassified as bogus.
------------------------------------------------------------------------
[2001-08-08 13:23:32] [EMAIL PROTECTED]
Seems that PHP cannot redirect 'Call to undefined function' errors to a custom error
handler...
A sample (taken partly from the manual):
<pre>
<?php
// Define a simple error handler
function error_handler ($level, $message, $file, $line, $context) {
echo "An error of level $level was generated in file $file on line $line. \nThe error
message was: $message \nThe following variables were set in the scope that the error
occurred in: <blockquote> ";
print_r ($context);
print "\n</blockquote>";
}
// Set the error handler to the error_handler() function
set_error_handler ('error_handler');
trigger_error ("Some other error");
whatever(); // <- this will crash make the script die without calling the custom
error_handler
?>
------------------------------------------------------------------------
Edit this bug report at http://bugs.php.net/?id=12658&edit=1
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