最近做一個(gè)項(xiàng)目，需要和其他的程序進(jìn)行對(duì)接，xml是交互數(shù)據(jù)的首選，所以，我需要一個(gè)函數(shù)能把php的數(shù)組轉(zhuǎn)換成xml字符串，又同時(shí)可以把字符串再還原回php數(shù)組，其實(shí)是很簡(jiǎn)單的遞歸調(diào)用，發(fā)出來(lái)備用
函數(shù)定義：
01./* 將數(shù)組格式化為XML字符串 */02.function array2xml($array,$level = 0){ 03. $return = ''; 04. if($level == 0){ 05. $return = '<?xml version="1.0" encoding="utf-8" ?><root>'; 06. } 07. foreach($array as $key => $item){ 08. if(!is_array($item)){ 09. $return .= "<item key='{$key}'>{$item}</item>"; 10. }else{ 11. $return .= "<item key='{$key}'>"; 12. $return .= array2xml($item,$level + 1); 13. $return .= "</item>"; 14. } 15. } 16. if($level == 0){ 17. $return .= '</root>'; 18. } 19. return $return; 20.} 21. 22./* 輔助函數(shù)用來(lái)獲取DOM跟節(jié)點(diǎn) */23.function getXmlRoot($xml){ 24. $doc = new DOMDocument(); 25. $doc->loadXML($xml); 26. $root = $doc->documentElement; 27. return $root; 28.} 29. 30./* 將被array2xml格式化的XML還原 */31.function xml2array($xml){ 32. $return_array = array(); 33. foreach($xml->childNodes as $node){ 34. $length = $node->childNodes->length; 35. $key = $node->getAttribute('key'); 36. if($length == 1 and $node->firstChild->nodeType == XML_TEXT_NODE){ 37. $return_array[$key] = $node->nodeValue; 38. }else{ 39. $return_array[$key] = xml2array($node); 40. } 41. } 42. return $return_array; 43.}使用方法：
1. array轉(zhuǎn)換為xml
01.$array = array( 02. 'aaa' => array( 03. 'title' => 'random test', 04. 'value' => md5(microtime()) 05. ), 06. 'bbb' => array( 07. 'title' => 'fixed test', 08. 'value' => '2010-01-01'09. ), 10. 'ccc' => 'this is c', 11. 'ddd' => array( 12. array( 13. time() 14. ), 15. array( 16. time() 17. ), 18. array( 19. time() 20. ), 21. array( 22. time() 23. ) 24. ) 25.); 26. 27.$xml = array2xml($array); 28.echo $xml;運(yùn)行結(jié)果為：
01. <?xml version="1.0" encoding="utf-8" ?> 02.- <root> 03.- <item key="aaa"> 04. <item key="title">random test</item> 05. <item key="value">2880f538686cf239481a70366047a619</item> 06. </item> 07.- <item key="bbb"> 08. <item key="title">fixed test</item> 09. <item key="value">2010-01-01</item> 10. </item> 11. <item key="ccc">this is c</item> 12.- <item key="ddd"> 13.- <item key="0"> 14. <item key="0">1268222560</item> 15. </item> 16.- <item key="1"> 17. <item key="0">1268222560</item> 18. </item> 19.- <item key="2"> 20. <item key="0">1268222560</item> 21. </item> 22.- <item key="3"> 23. <item key="0">1268222560</item> 24. </item> 25. </item> 26. </root>2. xml轉(zhuǎn)換為array
01.<?php 02.$array = array( 03. 'aaa' => array( 04. 'title' => 'random test', 05. 'value' => md5(microtime()) 06. ), 07. 'bbb' => array( 08. 'title' => 'fixed test', 09. 'value' => '2010-01-01'10. ), 11. 'ccc' => 'this is c', 12. 'ddd' => array( 13. array( 14. time() 15. ), 16. array( 17. time() 18. ), 19. array( 20. time() 21. ), 22. array( 23. time() 24. ) 25. ) 26.); 27. 28./* 使用方法 */29.$xml = array2xml($array); 30.$array2 = xml2array(getXmlRoot($xml)); 31.print_r($array); 32.echo '<br><br>'; 33.print_r($array2); 34.exit(); 35.?>運(yùn)行結(jié)果為：
1.Array ( [aaa] => Array ( [title] => random test [value] => fb5519e565162c6ac69700bb4c4a13c2 ) [bbb] => Array ( [title] => fixed test [value] => 2010-01-01 ) [ccc] => this is c [ddd] => Array ( [0] => Array ( [0] => 1268235843 ) [1] => Array ( [0] => 1268235843 ) [2] => Array ( [0] => 1268235843 ) [3] => Array ( [0] => 1268235843 ) ) ) 2. 3.Array ( [aaa] => Array ( [title] => random test [value] => fb5519e565162c6ac69700bb4c4a13c2 ) [bbb] => Array ( [title] => fixed test [value] => 2010-01-01 ) [ccc] => this is c [ddd] => Array ( [0] => Array ( [0] => 1268235843 ) [1] => Array ( [0] => 1268235843 ) [2] => Array ( [0] => 1268235843 ) [3] => Array ( [0] => 1268235843 ) ) )
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