libxml_use_internal_errors
(PHP 5 >= 5.1.0)
libxml_use_internal_errors — Disable libxml errors and allow user to fetch error information as needed
Описание
bool libxml_use_internal_errors
([ bool $use_errors
] )
libxml_use_internal_errors() allows you to disable standard libxml errors and enable user error handling.
Список параметров
- use_errors
-
Whether to enable user error handling. Defaults to FALSE.
Возвращаемые значения
This function returns the previous value of use_errors .
Примеры
Пример #1 A libxml_use_internal_errors() example
This example demonstrates the basic usage of libxml errors and the value returned by this function.
<?php
// enable user error handling
var_dump(libxml_use_internal_errors(true));
$doc = DOMDocument::load('file.xml');
if (!$doc) {
$errors = libxml_get_errors();
foreach ($errors as $error) {
// handle errors here
}
libxml_clear_errors();
}
?>
Результат выполнения данного примера:
bool(false)
Коментарии
When using this funtion, be sure to clear your internal error buffer. If you dn't and you are using this in a long running process, you may find that all your memory is used up.We use a custom error handler using set_error_handler() I found that after I call
libxml_use_internal_errors(false);
It resets my error_handler - not sure if this is a bug or not, I will report it as a bug - however, I needed to repeat my call to set_error_handler
(did confuse me for a while)
When using libxml_use_internal_errors(true), and perform a possibly memory intensive operation like simplexml_load_string() next, you might end up with a blank screen and no php error logged because the error message been suppressed.