In PHP, it is easy to pass back JSON objects by using the json_encode() function.
是否有相应的XML?
JSON能够以本地方式表达其阵列、愤怒、扼杀等。 XML没有这种概念——只是要素、属性和案文。 如果您想逐字转交反对,请使用JSON。 如果你想要实施复杂的亚特兰大,则使用XML,例如: phpDOM界面。
You can define your own xml_encode() function such as this the one from http://darklaunch.com/2009/05/23/php-xml-encode-using-domdocument-convert-array-to-xml-json-encode
function xml_encode($mixed, $domElement=null, $DOMDocument=null) {
if (is_null($DOMDocument)) {
$DOMDocument =new DOMDocument;
$DOMDocument->formatOutput = true;
xml_encode($mixed, $DOMDocument, $DOMDocument);
echo $DOMDocument->saveXML();
}
else {
// To cope with embedded objects
if (is_object($mixed)) {
$mixed = get_object_vars($mixed);
}
if (is_array($mixed)) {
foreach ($mixed as $index => $mixedElement) {
if (is_int($index)) {
if ($index === 0) {
$node = $domElement;
}
else {
$node = $DOMDocument->createElement($domElement->tagName);
$domElement->parentNode->appendChild($node);
}
}
else {
$plural = $DOMDocument->createElement($index);
$domElement->appendChild($plural);
$node = $plural;
if (!(rtrim($index, s ) === $index)) {
$singular = $DOMDocument->createElement(rtrim($index, s ));
$plural->appendChild($singular);
$node = $singular;
}
}
xml_encode($mixedElement, $node, $DOMDocument);
}
}
else {
$mixed = is_bool($mixed) ? ($mixed ? true : false ) : $mixed;
$domElement->appendChild($DOMDocument->createTextNode($mixed));
}
}
}
You could use xmlrpc_encode.
xmlrpc_encode ($your_array);
Be careful because this function is EXPERIMENTAL.
Reference: http://php.net/manual/en/function.xmlrpc-encode.php
here is one for php7.0+ , i bet it is far from optimal , the code is non-trivial, and it has NOT been tested much, but at least it works for my data (unlike Seph s code)...
example:
$test = array (
normal1 => foo ,
normal2 => bar ,
foo_assoc => [
foo ,
bar ,
baz ,
[
derp ,
derpmore
]
],
foo_nonassoc => [
derppp => yes ,
daarpp => no ,
lel ,
far => away
],
normal3 => lala ,
deep => [
deeper => [
deeper2 => [
deepest => [
quite ,
deep ,
indeed
],
checkmate
]
]
],
special => encoding<special>characters&test ,
me_n_you => true
);
echo (hhb_xml_encode ( $test ));
产出:
<normal1>foo</normal1>
<normal2>bar</normal2>
<foo_assoc>foo</foo_assoc>
<foo_assoc>bar</foo_assoc>
<foo_assoc>baz</foo_assoc>
<foo_assoc>derp</foo_assoc>
<foo_assoc>derpmore</foo_assoc>
<foo_nonassoc>
<derppp>yes</derppp>
<daarpp>no</daarpp>
<foo_nonassoc>lel</foo_nonassoc>
<far>away</far>
</foo_nonassoc>
<normal3>lala</normal3>
<deep>
<deeper>
<deeper2>
<deepest>quite</deepest>
<deepest>deep</deepest>
<deepest>indeed</deepest>
<deeper2>checkmate</deeper2>
</deeper2>
</deeper>
</deep>
<special>encoding<special>characters&test</special>
<me_n_you>true</me_n_you>
职能:
function hhb_xml_encode(array $arr, string $name_for_numeric_keys = val ): string {
if (empty ( $arr )) {
// avoid having a special case for <root/> and <root></root> i guess
return ;
}
$is_iterable_compat = function ($v): bool {
// php 7.0 compat for php7.1+ s is_itrable
return is_array ( $v ) || ($v instanceof Traversable);
};
$isAssoc = function (array $arr): bool {
// thanks to Mark Amery for this
if (array () === $arr)
return false;
return array_keys ( $arr ) !== range ( 0, count ( $arr ) - 1 );
};
$endsWith = function (string $haystack, string $needle): bool {
// thanks to MrHus
$length = strlen ( $needle );
if ($length == 0) {
return true;
}
return (substr ( $haystack, - $length ) === $needle);
};
$formatXML = function (string $xml) use ($endsWith): string {
// there seems to be a bug with formatOutput on DOMDocuments that have used importNode with $deep=true
// on PHP 7.0.15...
$domd = new DOMDocument ( 1.0 , UTF-8 );
$domd->preserveWhiteSpace = false;
$domd->formatOutput = true;
$domd->loadXML ( <root> . $xml . </root> );
$ret = trim ( $domd->saveXML ( $domd->getElementsByTagName ( "root" )->item ( 0 ) ) );
assert ( 0 === strpos ( $ret, <root> ) );
assert ( $endsWith ( $ret, </root> ) );
$full = trim ( substr ( $ret, strlen ( <root> ), - strlen ( </root> ) ) );
$ret = ;
// ... seems each line except the first line starts with 2 ugly spaces,
// presumably its the <root> element that starts with no spaces at all.
foreach ( explode ( "
", $full ) as $line ) {
if (substr ( $line, 0, 2 ) === ) {
$ret .= substr ( $line, 2 ) . "
";
} else {
$ret .= $line . "
";
}
}
$ret = trim ( $ret );
return $ret;
};
// $arr = new RecursiveArrayIterator ( $arr );
// $iterator = new RecursiveIteratorIterator ( $arr, RecursiveIteratorIterator::SELF_FIRST );
$iterator = $arr;
$domd = new DOMDocument ();
$root = $domd->createElement ( root );
foreach ( $iterator as $key => $val ) {
// var_dump ( $key, $val );
$ele = $domd->createElement ( is_int ( $key ) ? $name_for_numeric_keys : $key );
if (! empty ( $val ) || $val === 0 ) {
if ($is_iterable_compat ( $val )) {
$asoc = $isAssoc ( $val );
$tmp = hhb_xml_encode ( $val, is_int ( $key ) ? $name_for_numeric_keys : $key );
// var_dump ( $tmp );
// die ();
$tmpDom = new DOMDocument();
@$tmpDom->loadXML ( <root> . $tmp . </root> );
foreach ( $tmpDom->getElementsByTagName ( "root" )->item ( 0 )->childNodes ?? [ ] as $tmp2 ) {
$tmp3 = $domd->importNode ( $tmp2, true );
if ($asoc) {
$ele->appendChild ( $tmp3 );
} else {
$root->appendChild ( $tmp3 );
}
}
unset ( $tmp, $tmp2, $tmp3, $tmpDom );
if (! $asoc) {
// echo REMOVING ;die();
// $ele->parentNode->removeChild($ele);
continue;
}
} else {
$ele->textContent = $val;
}
}
$root->appendChild ( $ele );
}
$domd->preserveWhiteSpace = false;
$domd->formatOutput = true;
$ret = trim ( $domd->saveXML ( $root ) );
assert ( 0 === strpos ( $ret, <root> ) );
assert ( $endsWith ( $ret, </root> ) );
$ret = trim ( substr ( $ret, strlen ( <root> ), - strlen ( </root> ) ) );
// seems to be a bug with formatOutput on DOMDocuments that have used importNode with $deep=true..
$ret = $formatXML ( $ret );
return $ret;
}
我反对:
function xml_encode(mixed $value=null, string $key="root", SimpleXMLElement $parent=null){
if(is_object($value)) $value = (array) $value;
if(!is_array($value)){
if($parent === null){
if(is_numeric($key)) $key = item ;
if($value===null) $node = new SimpleXMLElement("<$key />");
else $node = new SimpleXMLElement("<$key>$value</$key>");
}
else{
$parent->addChild($key, $value);
$node = $parent;
}
}
else{
$array_numeric = false;
if($parent === null){
if(empty($value)) $node = new SimpleXMLElement("<$key />");
else $node = new SimpleXMLElement("<$key></$key>");
}
else{
if(!isset($value[0])) $node = $parent->addChild($key);
else{
$array_numeric = true;
$node = $parent;
}
}
foreach( $value as $k => $v ) {
if($array_numeric) xml_encode($v, $key, $node);
else xml_encode($v, $k, $node);
}
}
return $node;
}
简单例子:
$a = "hello";
$xml_element = xml_encode($a, a );
echo $xml_element->asXML();
Null Example:
$xml_element = xml_encode(null, example );
echo $xml_element->asXML();
Complex Example:
$w = new stdClass();
$w->special = true;
$w->name = Birthday Susan ;
$v = new stdClass();
$v->name = John ;
$v->surname = Smith ;
$v->hobbies = array( soccer , cinema );
$v->job = policeman ;
$v->events = new stdClass();
$v->events->tomorrow = false;
$v->events->yesterday = true;
$v->events->list = array($v->hobbies, $w);
$xml_element = xml_encode($v, oembed );
echo $xml_element->asXML();
This works for me in most cases:
$str = htmlentities($str , ENT_XML1);
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