首先，来看array->xml。
<?php
function array2xml($array, $tag) {
function ia2xml($array) {
$xml="";
foreach ($array as $key=>$value) {
if (is_array($value)) {
$xml.="<$key>".ia2xml($value)."</$key>";
} else {
$xml.="<$key>".$value."</$key>";
}
}
return $xml;
}
return simplexml_load_string("<$tag>".ia2xml($array)."</$tag>");
}
$test['type']='lunch';
$test['time']='12:30';
$test['menu']=array('entree'=>'salad', 'maincourse'=>'steak');
echo array2xml($test,"meal")->asXML();
?>
其次，xml->array。
方法一:
function xml2phpArray($xml,$arr){
$iter = 0;
foreach($xml->children() as $b){
$a = $b->getName();
if(!$b->children()){
$arr[$a] = trim($b[0]);
}else{
$arr[$a][$iter] = array();
$arr[$a][$iter] = xml2phpArray($b,$arr[$a][$iter]);
$iter++;
}
}
return $arr;
}
$xml = <<<XML
<?xml version="1.0" encoding="ISO-8859-1"?>
<note>
<to>George</to>
<from>John</from>
<heading>Reminder</heading>
<body>Don't forget the meeting!</body>
<a><c>ccc</c><e>eee</e></a>
</note>
XML;
print_r(xml2phpArray(simplexml_load_string ( $xml ),array()));
方法二:
function XML2Array ( $xml , $recursive = false )
{
if ( ! $recursive )
{
$array = simplexml_load_string ( $xml ) ;
}
else
{
$array = $xml ;
}
$newArray = array () ;
$array = ( array ) $array ;
foreach ( $array as $key => $value )
{
$value = ( array ) $value ;
if ( isset ( $value [ 0 ] ) )
{
$newArray [ $key ] = trim ( $value [ 0 ] ) ;
}
else
{
$newArray [ $key ] = XML2Array ( $value , true ) ;
}
}
return $newArray ;
}
$xml = <<<XML
<?xml version="1.0" encoding="ISO-8859-1"?>
<note>
<to>George</to>
<from>John</from>
<heading>Reminder</heading>
<body>Don't forget the meeting!</body>
<a><b><c>ccc</c></b><e>eee</e></a>
</note>
XML;
print_r(XML2Array($xml));
来看json->array。
json_decode($json,true);//第二个参数为true时 即为array
$json = '{"a":1,"b":2,"c":3,"d":4,"e":5}';
var_dump(json_decode($json));
var_dump(json_decode($json, true));
最后，来看array->json
json_encode 数组->json
$arr = array ('a'=>1,'b'=>2,'c'=>3,'d'=>4,'e'=>5);
echo json_encode($arr);