本文实例讲述了PHP实现XML与数据格式进行转换类。分享给大家供大家参考。具体如下：

<?php/** * xml2array() will convert the given XML text to an array in the XML structure. * Link: http://plete") { // Tags that ends in 1 line '<tag />' // See if the key is already taken. if (!isset($current[$tag])) { // New Key $current[$tag] = $result; $repeated_tag_index[$tag . '_' . $level] = 1; if ($priority == 'tag' and $attributes_data) $current[$tag . '_attr'] = $attributes_data; } else { // If taken, put all things inside a list(array) if (isset($current[$tag][0]) and is_array($current[$tag])) { // If it is already an array... // ...push the new element into that array. $current[$tag][$repeated_tag_index[$tag . '_' . $level]] = $result; if ($priority == 'tag' and $get_attributes and $attributes_data) { $current[$tag][$repeated_tag_index[$tag . '_' . $level] . '_attr'] = $attributes_data; } $repeated_tag_index[$tag . '_' . $level]++; } else { // If it is not an array... $current[$tag] = array($current[$tag], $result); //...Make it an array using using the existing value and the new value $repeated_tag_index[$tag . '_' . $level] = 1; if ($priority == 'tag' and $get_attributes) { if (isset($current[$tag . '_attr'])) { // The attribute of the last(0th) tag must be moved as well $current[$tag]['0_attr'] = $current[$tag . '_attr']; unset($current[$tag . '_attr']); } if ($attributes_data) { $current[$tag][$repeated_tag_index[$tag . '_' . $level] . '_attr'] = $attributes_data; } } $repeated_tag_index[$tag . '_' . $level]++; //0 and 1 index is already taken } } } elseif ($type == 'close') { // End of tag '</tag>' $current = &$parent[$level-1]; } } return($xml_array);} // Array to XMLclass array2xml { public $output = "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"; public $sub_item = array(); public function __construct($array) { $sub_item = array(); $this->output .= $this->xmlmake($array); } public function xmlmake($array, $fk = '') { $xml = ''; global $sub_item; foreach ($array as $key => $value) { if (is_array($value)) { if (is_numeric($key)) { $this->sub_item=array_merge($this->sub_item,array($fk)); $xml .= "<{$fk}>" . $this->xmlmake($value, $key) . "</{$fk}>"; } else { $xml .= "<{$key}>" . $this->xmlmake($value, $key) . "</{$key}>"; } } else { $xml .= "<{$key}>{$value}</{$key}>\n"; } } return $xml; } public function output(){ foreach($this->sub_item as $t){ $this->output = str_replace("<{$t}><{$t}>","<{$t}>",$this->output); $this->output = str_replace("</{$t}></{$t}>","</{$t}>",$this->output); } return $this->output; }}

希望本文所述对大家的php程序设计有所帮助。