xml_parser_create

(PHP 4, PHP 5, PHP 7, PHP 8)

xml_parser_create创建 XML 解析器

说明

xml_parser_create(?string $encoding = null): XMLParser

xml_parser_create() 新建 XML 解析器并返回可被其它 XML 函数使用的 XMLParser 实例。

参数

encoding

自动检测输入编码,因此 encoding 参数仅指定输出编码。默认输出字符集是 UTF-8。如果传递的是空字符串,解析器会尝试通过查看头的的 3 或 4 个字节来识别文档的编码方式。支持的编码有 ISO-8859-1UTF-8US-ASCII

返回值

返回新 XMLParser 实例。

更新日志

版本 说明
8.0.0 此函数现在返回 XMLParser 实例;之前返回 resource, 或者在失败时返回 false
8.0.0 encoding 现在可以为 null。

参见

添加备注

用户贡献的备注 5 notes

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13
marek995 at seznam dot cz
14 years ago
I created a function, which combines xml_paresr_create and all functions around.<?phpfunction html_parse($file)     {      $array = str_split($file, 1);      $count = false;      $text = "";      $end = false;      foreach($array as $temp)       {        switch($temp)         {          case "<":           between($text);           $text = "";           $count = true;           $end = false;           break;          case ">":           if($end == true) {end_tag($text);}           else {start_tag($text);}           $text = "";           break;          case "/":           if($count == true) {$end = true;}           else {$text = $text . "/";}           break;          default:           $count = false;           $text = $text . $temp;         }       }     }?>The input value is a string.It calls functions start_tag() , between() and end_tag() just like the original xml parser.But it has a few differences:  - It does NOT check the code. Just resends values to that three functions, no matter, if they are right  - It works with parameters. For example: from tag <sth b="42"> sends sth b="42"  - It works wit diacritics. The original parser sometimes wrapped the text before the first diacritics appearance.  - Works with all encoding. If the input is UTF-8, the output will be UTF-8 too  - It works with strings. Not with file pointers.  - No "Reserved XML name" error  - No doctype needed  - It does not work with commentaries, notes, programming instructions etc. Just the tagsdefinition of the handling functions is:<?phpfunction between($stuff) {}?>No other attributes
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2
jcalvert at gmx dot net
21 years ago
To maintain compatibility between PHP4 and PHP5 you should always pass a string argument to this function. PHP4 autodetects the format of the input if you leave it out whereas PHP5 will assume the format to be ISO-8859-1 (and choke on the byte order marker of UTF-8 files).Calling the function as <?php $res = xml_parser_create('') ?> will cause both versions of PHP to autodetect the format.
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0
Tobbe
20 years ago
The above "XML to array" code does not work properly if you have several tags on the same level and with the same name, example:<currenterrors><error><description>This is a real error...</description></error><error><description>This is a second error...</description></error><error><description>Lots of errors today...</description></error><error><description>This is the last error...</description></error></currenterrors>It will then only display the first <error>-tag.In this case you will need to number the tags automatically or maybe have several arrays for each new element.
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-1
php at stock-consulting dot com
20 years ago
Even though I passed "UTF-8" as encoding type PHP (Version 4.3.3) did *not* treat the input file as UTF-8. The input file was missing the BOM header bytes (which may indeed be omitted, according to RFC3629...but things are a bit unclear there. The RFC seems to make mere recommendations concering the BOM header). If you want to sure that PHP treats an UTF-8 encoded file correctly, make sure that it begins with the corresponding 3 byte BOM header (0xEF 0xBB 0xBF)
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bishop at php dot net
6 years ago
Internals has proposed[1] changing this extension from resource-based to object-based. When this change is made, xml_parser_create will return an object, not a resource. Application developers are encouraged to replace any checks for explicit success, like:<?php$res = xml_parser_create(/*...*/);if (! is_resource($res)) {    // ...}?>With a check for explicit failure:<?php$res = xml_parser_create(/*...*/);if (false === $res) {    // ...}[1]: https://marc.info/?l=php-internals&m=154998365013373&w=2
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