例子 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) { $errors = libxml_get_errors();
foreach ($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"; }
?>
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上例将输出:
<titles>PHP: Behind the Parser</title>
^
Fatal Error 76: Opening and ending tag mismatch: titles line 4 and title
Line: 4
Column: 0
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