(PHP 5 >= 5.1.0, PHP 7, PHP 8)
libxml_get_errors — Lee el array de errores
Esta función no contiene ningún parámetro.
libxml_get_errors() devuelve un array con los objetos LibXMLError que representan los errores, o bien un array vacío si no hay errores.
Ejemplo #1 Ejemplo con libxml_get_errors()
Este ejemplo muestra cómo crear un gestor de errores libxml simple.
<?php
libxml_use_internal_errors(true);
$xmlstr = <<< XML
<?xml version='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) {
$errors = libxml_get_errors();
foreach ($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 .= "Advertencia $error->code: ";
break;
case LIBXML_ERR_ERROR:
$return .= "Error $error->code: ";
break;
case LIBXML_ERR_FATAL:
$return .= "Error fatal $error->code: ";
break;
}
$return .= trim($error->message) .
"\n Línea: $error->line" .
"\n Columna: $error->column";
if ($error->file) {
$return .= "\n Fichero: $error->file";
}
return "$return\n\n--------------------------------------------\n\n";
}
?>El ejemplo anterior mostrará:
<titles>PHP: Behind the Parser</title> -----------------------------------------^ Error fatal 76: Opening and ending tag mismatch: titles line 4 and title Línea: 4 Columna: 41 --------------------------------------------
Please beware that the column property seems almost always to be invalid. I thought it only occurred when the line in question 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 page: line 4 does not even have 46 characters. Where the XML line is long, the difference can be very large.
This property comes from the libxml extension, so in any case I don't think this is a PHP bug, however it is worth knowing that the value might be totally unreliable to save some confusion.
The PHP documentation page for the libXMLError class gives some indication, stating:
"This property isn't entirely implemented in libxml and therefore 0 is often returned."
(My libxml version: 2.9.1)