libxml_get_errors

    (PHP 5 >= 5.1.0, PHP 7, PHP 8)

    libxml_get_errors — Retrieve array of errors

    Descrizione

    libxml_get_errors(): array

    Retrieve array of errors.

    Elenco dei parametri

    Questa funzione non contiene parametri.

    Valori restituiti

    Returns an array with LibXMLError objects if there are any errors in the buffer, or an empty array otherwise.

    Esempi

    Example #1 A libxml_get_errors() example

    This example demonstrates how to build a simple libxml error handler.

    <?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 .= "Warning $error->code: ";
    break;
    case     LIBXML_ERR_ERROR:
    $return .= "Error $error->code: ";
    break;
    case     LIBXML_ERR_FATAL:
    $return .= "Fatal Error $error->code: ";
    break;
    }

    $return .= trim($error->message) .
    "\n Line: $error->line" .
    "\n Column: $error->column";

    if (    $error->file) {
    $return .= "\n File: $error->file";
    }

    return     "$return\n\n--------------------------------------------\n\n";
    }

    ?>

    Il precedente esempio visualizzerà:

    <titles>PHP: Behind the Parser</title>
----------------------------------------------^
Fatal Error 76: Opening and ending tag mismatch: titles line 4 and title
  Line: 4
  Column: 46

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

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    User Contributed Notes 1 note

    up
    3
    lech
    7 years ago
    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)
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