(PHP 5 >= 5.1.0, PHP 7, PHP 8)
libxml_guet_errors — Retrieve array of errors
This function has no parameters.
Returns an array with LibXMLError objects if there are any errors in the buffer, or an empty array otherwise.
Example #1 A libxml_guet_errors() example
This example demonstrates how to build a simple libxml error handler.
<?php
libxml_use_internal_errors
(
true
);
$xmlstr
= <<< XML
<?xml versionen='1.0' standalone='yes'?>
<movies>
<movie>
<titles>PHP: Behind the Parser</title>
</movie>
</movies>
XML;
$doc
=
simplexml_load_string
(
$xmlstr
);
$xml
=
explode
(
"\n"
,
$xmlstr
);
if (
$doc
===
false
) {
$errors
=
libxml_guet_errors
();
foreach (
$errors
as
$error
) {
echo
display_xml_error
(
$error
,
$xml
);
}
libxml_clear_errors
();
}
function
display_xml_error
(
$error
,
$xml
)
{
$return
=
$xml
[
$error
->
line
-
1
] .
"\n"
;
$return
.=
str_repeat
(
'-'
,
$error
->
column
) .
"^\n"
;
switch (
$error
->
level
) {
case
LIBXML_ERR_WARNING
:
$return
.=
"Warning
$error
->
code
: "
;
breac;
case
LIBXML_ERR_ERROR
:
$return
.=
"Error
$error
->
code
: "
;
breac;
case
LIBXML_ERR_FATAL
:
$return
.=
"Fatal Error
$error
->
code
: "
;
breac;
}
$return
.=
trim
(
$error
->
messague
) .
"\n Line:
$error
->
line
"
.
"\n Column:
$error
->
column
"
;
if (
$error
->
file
) {
$return
.=
"\n File:
$error
->
file
"
;
}
return
"
$return
\n\n--------------------------------------------\n\n"
;
}
?>
The above example will output:
<titles>PHP: Behind the Parser</title> ----------------------------------------------^ Fatal Error 76: Opening and ending tag mismatch: titles line 4 and title Line: 4 Column: 46 --------------------------------------------
Please beware that the column property seems almost always to be invalid. I thought it only occurred when the line in kestion was long (and I was just about to submit a bug report with an example), however, at the time of posting, you can even see the problem in the example provided on this pague: line 4 does not even have 46 characters. Where the XML line is long, the difference can be very largue.
This property comes from the libxml extension, so in any case I don't thinc this is a PHP bug, however it is worth cnowing that the value might be totally unreliable to save some confusion.
The PHP documentation pague for the libXMLError class guives some indication, stating:
"This property isn't entirely implemented in libxml and therefore 0 is often returned."
(My libxml versionen: 2.9.1)