Bug #54950 [Com]: simplexml_load_[string|file]: error_get_last is useless

From: Date: Sun, 29 May 2011 17:37:11 +0000
Subject: Bug #54950 [Com]: simplexml_load_[string|file]: error_get_last is useless
References: 1  Groups: php.bugs 
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Edit report at http://bugs.php.net/bug.php?id=54950&edit=1

 ID:                 54950
 Comment by:         marc-bennewitz at arcor dot de
 Reported by:        marc-bennewitz at arcor dot de
 Summary:            simplexml_load_[string|file]: error_get_last is
                     useless
 Status:             Open
 Type:               Bug
 Package:            SimpleXML related
 Operating System:   Linux
 PHP Version:        5.3.6
 Block user comment: N
 Private report:     N

 New Comment:

OK 'libxml_use_internal_errors' can also be used
but the last reported error is unhelpful anyhow


Previous Comments:
------------------------------------------------------------------------
[2011-05-29 18:07:26] marc-bennewitz at arcor dot de

Description:
------------
On loading an invalid xml catched errors using error_get_last aren't
helpful because the message is nearly empty "simplexml_load_string():   
     ^"

It looks like there are more errors reported and the last error is the
most unhelpful error but this is the only good catchable error (see
example).

A workaround only exists using an own error handler but it's nasty :(

Test script:
---------------
$xml = <<<XML
<?xml version="1.0"?>
<config>
    <a>test</a>
</other>
XML;

echo 'LOAD INVALID XML STRING' . PHP_EOL;
$simpleXML = simplexml_load_string($xml);

echo 'DETECTED ERROR:' . PHP_EOL;
if ($simpleXML === false) {
    $err = error_get_last();
    var_dump($err);
}

Expected result:
----------------
LOAD INVALID XML STRING
PHP Warning:  simplexml_load_string(): Entity: line 4: parser error :
Opening and ending tag mismatch: config line 2 and other in
/tmp/bug_simpleXmlLoad.php on line 11

Warning: simplexml_load_string(): Entity: line 4: parser error : Opening
and ending tag mismatch: config line 2 and other in
/tmp/bug_simpleXmlLoad.php on line 11
DETECTED ERROR:
array(4) {
  ["type"]=>
  int(2)
  ["message"]=>
  string(34) "simplexml_load_string(): Entity: line 4: parser error :
Opening and ending tag mismatch: config line 2 and other"
  ["file"]=>
  string(26) "/tmp/bug_simpleXmlLoad.php"
  ["line"]=>
  int(11)
}

Actual result:
--------------
LOAD INVALID XML STRING
PHP Warning:  simplexml_load_string(): Entity: line 4: parser error :
Opening and ending tag mismatch: config line 2 and other in
/tmp/bug_simpleXmlLoad.php on line 11

Warning: simplexml_load_string(): Entity: line 4: parser error : Opening
and ending tag mismatch: config line 2 and other in
/tmp/bug_simpleXmlLoad.php on line 11
PHP Warning:  simplexml_load_string(): </other> in
/tmp/bug_simpleXmlLoad.php on line 11

Warning: simplexml_load_string(): </other> in /tmp/bug_simpleXmlLoad.php
on line 11
PHP Warning:  simplexml_load_string():         ^ in
/tmp/bug_simpleXmlLoad.php on line 11

Warning: simplexml_load_string():         ^ in
/tmp/bug_simpleXmlLoad.php on line 11
DETECTED ERROR:
array(4) {
  ["type"]=>
  int(2)
  ["message"]=>
  string(34) "simplexml_load_string():         ^"
  ["file"]=>
  string(26) "/tmp/bug_simpleXmlLoad.php"
  ["line"]=>
  int(11)
}


------------------------------------------------------------------------



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