PHP 7.2.7 Released


(PHP 4, PHP 5, PHP 7)

xml_parser_set_optionValorizza le opzioni di un parser XML


bool xml_parser_set_option ( resource $parser , int $option , mixed $value )

Valorizza un opzione in un parser XML.

Elenco dei parametri


Un riferimento al parser XML del quale impostare un'opzione.


Quale opzione impostare. Vedere sotto.

Sono disponibili le seguenti opzioni:

Opazioni del parser XML
Costante dell'opzione Tipo dati Descrizione
XML_OPTION_CASE_FOLDING integer Controlla se case-folding è abilitato per questo parser XML. Abilitato per impostazione predefinita.
XML_OPTION_SKIP_TAGSTART integer Specifica quanti catatteri devono essere ignorati all'inizio di un nome di tag.
XML_OPTION_SKIP_WHITE integer Indica se si devono saltare i valori che consistono in caratteri di spazio.
XML_OPTION_TARGET_ENCODING string Imposta quale codifica di destinazione usare in questo parser XML.Per impostazione predefinita, è impostata la stessa codifica del sorgente utilizzata da xml_parser_create(). Le codifiche di destinazione supportate sono ISO-8859-1, US-ASCII e UTF-8.


Il nuovo valore dell'opzione.

Valori restituiti

Questa funzione restituisce FALSE se parser non si riferisce ad un parser valido, o se l'opzione non può essere impostata. Altrimenti l' opzione viene impostata e la funzione restituisce TRUE.

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User Contributed Notes 10 notes

9 years ago
The option XML_OPTION_SKIP_WHITE has no effect in my PHP 5.2.6 (with expat-1.95.8-5). To skip cdata composed of white space only, simply check for that at the beginning of your cdata callback function:

function callback_cdata($parser, $cdata)

// ... continue processing ...
maschoen at pobox dot com
10 years ago
I'm a little confused about using xml_parser_set_option and xml_parser_get_option with XML_OPTION_SKIP_WHITE and XML_OPTION_SKIP_TAGSTART.

Looking at the source code, ...set_option() accepts both ...SKIP_WHITE and ...SKIP_TAGSTART, and sets a program variables.  On the other hand, ...get_option() returns an error for both.   I'm not sure of the code actually uses the variables properly, although it does reference the set variables.  This does look like an oversite.
j[no_spam_please] at [thx]jessepearson dot net
11 years ago
In the function below, you need to update two lines if you don't want php to throw warnings.

change these two:
           $elements[$index]['attributes'] = $tag['attributes'];
           $elements[$index]['content'] = $tag['value'];

to this:
      $elements[$index]['attributes'] = empty($tag['attributes']) ? "" : $tag['attributes'];
      $elements[$index]['content']    = empty($tag['value']) ? "" : $tag['value'];
ksavage at achaean dot com
13 years ago
Had one heck of a time getting curl to send my XML request.  Tried a lot of different things, FINALLY ended up with this. 

Im making a curl request to paymentech / Orbital 's payment gateway.   Essentially, I took the same header i made for the fsockopen() request, and used it for this curl request. (Hostinc company didnt allow fsockopen().

You'll note that this specific gateway requires a custom content type header.  Thats what gave me the most trouble.  When using the CURLOPT_HTTPHEADER, and CURLOPT_POSTFIELDS together, it doesnt matter, it sends the default post header because of CURLOPT_POSTFIELDS.


= "";
$page = "/proccessing_page.cgi";

$post_string = "<YourXML>All XML stuff Here</YourXML>";

$header  = "POST ".$page." HTTP/1.0 \r\n";
$header .= "MIME-Version: 1.0 \r\n";
$header .= "Content-type: application/PTI26 \r\n";
$header .= "Content-length: ".strlen($post_string)." \r\n";
$header .= "Content-transfer-encoding: text \r\n";
$header .= "Request-number: 1 \r\n";
$header .= "Document-type: Request \r\n";
$header .= "Interface-Version: Test 1.4 \r\n";
$header .= "Connection: close \r\n\r\n";
$header .= $post_string;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,$url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_TIMEOUT, 4);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $header);

$data = curl_exec($ch);         if (curl_errno($ch)) {
        } else {

// use XML Parser on $data, and your set!

$xml_parser = xml_parser_create();
xml_parse_into_struct($xml_parser, $data, $vals, $index);

// $vals = array of XML tags.  Go get em!


Worked like a dream for me.  Enjoy!
matt at mcbridematt dot dhs dot org
15 years ago
Re: anony at mous dot com
case folding is a violation of the XHTML specification. xhtml is all in lowercase to be inline with the DOM
pupeno at pupeno dot com
15 years ago
XML is case sensitive, then, from my point of view, disabling case folding doesn't goes against xml 1.0 specifications but the contrary, disabling case folding allow us to distiguish between diferent cases of the same letter ('a' and 'A') which of XML are two diferent things.
From my point of view, disabling case folding is a good practice and I think it should be disabled by default.
More information on:
Thank you.
ta at NOSPAM dot magicsquare dot info
15 years ago
XML_OPTION_SKIP_WHITE works for me (linux, php 4.2.1)

phpinfo says :

XML Support active
XML Namespace Support active
EXPAT Version expat_1.95.2

i guess it depends on expat version/presence
chris at wildcharacters dot com
16 years ago
The two 'skip' tags are not available to windows users using PHP 4.0.4.  The following:

$skipWhite = xml_parser_get_option ($xmlParser,XML_OPTION_SKIP_WHITE);
$skipTagStart = xml_parser_get_option ($xmlParser,XML_OPTION_SKIP_TAGSTART);

generates the following errors:
Warning: xml_parser_get_option: unknown option in c:/program files/abria merlin/apache/htdocs/xml/sax_test.php on line 230
anony at mous dot com
18 years ago
Disable case folding or your code will be violating the XML 1.0 specification.
11 years ago
A little mod to a function posted here...

function xml_to_array( $file )
    $parser = xml_parser_create();
    xml_parser_set_option( $parser, XML_OPTION_CASE_FOLDING, 0 );
    xml_parser_set_option( $parser, XML_OPTION_SKIP_WHITE, 1 );
    xml_parse_into_struct( $parser, file_get_contents($file), $tags );
    xml_parser_free( $parser );
    $elements = array();
    $stack = array();
    foreach ( $tags as $tag )
        $index = count( $elements );
        if ( $tag['type'] == "complete" || $tag['type'] == "open" )
            $elements[$index] = array();
            $elements[$index]['name'] = $tag['tag'];
            $elements[$index]['attributes'] = $tag['attributes'];
            $elements[$index]['content'] = $tag['value'];
            if ( $tag['type'] == "open" )
            {    # push
                $elements[$index]['children'] = array();
                $stack[count($stack)] = &$elements;
                $elements = &$elements[$index]['children'];
        if ( $tag['type'] == "close" )
        {    # pop
            $elements = &$stack[count($stack) - 1];
            unset($stack[count($stack) - 1]);
    return $elements[0];
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