PHP生成plist数据的方法_php技巧

本文实例讲述了PHP生成plist数据的方法。分享给大家供大家参考。具体如下：

这段代码实现PHP数组转换为苹果plist XML或文本格式

 */
function plist_encode_text ($obj) {
$plist = new PropertyList($obj);
return $plist->text();
}
function plist_encode_xml ($obj) {
$plist = new PropertyList($obj);
return $plist->xml();
}
class PropertyList
{
private $obj, $xml, $text;
public function __construct ($obj) {
$this->obj = $obj;
}
private static function is_assoc ($array) {
return (is_array($array) && 0 !== count(array_diff_key($array, array_keys(array_keys($array)))));
}
public function xml () {
if (isset($this->xml)) return $this->xml;
$x = new XMLWriter();
$x->openMemory();
$x->setIndent(TRUE);
$x->startDocument('1.0', 'UTF-8');
$x->writeDTD('plist', '-//Apple//DTD PLIST 1.0//EN', 'http://www.apple.com/DTDs/PropertyList-1.0.dtd');
$x->startElement('plist');
$x->writeAttribute('version', '1.0');
$this->xmlWriteValue($x, $this->obj);
$x->endElement(); // plist
$x->endDocument();
$this->xml = $x->outputMemory();
return $this->xml;
}
public function text() {
if (isset($this->text)) return $this->text;
$text = '';
$this->textWriteValue($text, $this->obj);
$this->text = $text;
return $this->text;
}
private function xmlWriteDict(XMLWriter $x, &$dict) {
$x->startElement('dict');
foreach($dict as $k => &$v) {
$x->writeElement('key', $k);
$this->xmlWriteValue($x, $v);
}
$x->endElement(); // dict
}
private function xmlWriteArray(XMLWriter $x, &$arr) {
$x->startElement('array');
foreach($arr as &$v)
$this->xmlWriteValue($x, $v);
$x->endElement(); // array
}
private function xmlWriteValue(XMLWriter $x, &$v) {
if (is_int($v) || is_long($v))
$x->writeElement('integer', $v);
elseif (is_float($v) || is_real($v) || is_double($v))
$x->writeElement('real', $v);
elseif (is_string($v))
$x->writeElement('string', $v);
elseif (is_bool($v))
$x->writeElement($v?'true':'false');
elseif (PropertyList::is_assoc($v))
$this->xmlWriteDict($x, $v);
elseif (is_array($v))
$this->xmlWriteArray($x, $v);
elseif (is_a($v, 'PlistData'))
$x->writeElement('data', $v->base64EncodedData());
elseif (is_a($v, 'PlistDate'))
$x->writeElement('date', $v->encodedDate());
else {
trigger_error("Unsupported data type in plist ($v)", E_USER_WARNING);
$x->writeElement('string', $v);
}
}
private function textWriteValue(&$text, &$v, $indentLevel = 0) {
if (is_int($v) || is_long($v))
$text .= sprintf("%d", $v);
elseif (is_float($v) || is_real($v) || is_double($v))
$text .= sprintf("%g", $v);
elseif (is_string($v))
$this->textWriteString($text, $v);
elseif (is_bool($v))
$text .= $v?'YES':'NO';
elseif (PropertyList::is_assoc($v))
$this->textWriteDict($text, $v, $indentLevel);
elseif (is_array($v))
$this->textWriteArray($text, $v, $indentLevel);
elseif (is_a($v, 'PlistData'))
$text .= 'hexEncodedData() . '>';
elseif (is_a($v, 'PlistDate'))
$text .= '"' . $v->ISO8601Date() . '"';
else {
trigger_error("Unsupported data type in plist ($v)", E_USER_WARNING);
$this->textWriteString($text, $v);
}
}
private function textWriteString(&$text, &$str) {
$oldlocale = setlocale(LC_CTYPE, "0");
if (ctype_alnum($str)) $text .= $str;
else $text .= '"' . $this->textEncodeString($str) . '"';
setlocale(LC_CTYPE, $oldlocale);
}
private function textEncodeString(&$str) {
$newstr = '';
$i = 0;
$len = strlen($str);
while($i = 0x07 && $ch  &$v) {
$text .= $indent;
$this->textWriteValue($text, $k);
$text .= ' = ';
$this->textWriteValue($text, $v, $indentLevel);
$text .= ";\n";
}
$text .= substr($indent, 0, -1) . '}';
}
private function textWriteArray(&$text, &$arr, $indentLevel) {
if (count($arr) == 0) {
$text .= '()';
return;
}
$text .= "(\n";
$indent = '';
$indentLevel++;
while(strlen($indent) textWriteValue($text, $v, $indentLevel);
$text .= ",\n";
}
$text .= substr($indent, 0, -1) . ')';
}
}
class PlistData
{
private $data;
public function __construct($str) {
$this->data = $str;
}
public function base64EncodedData () {
return base64_encode($this->data);
}
public function hexEncodedData () {
$len = strlen($this->data);
$hexstr = '';
for($i = 0; $i data, $i, 4)) . ' ';
return substr($hexstr, 0, -1);
}
}
class PlistDate
{
private $dateval;
public function __construct($init = NULL) {
if (is_int($init))
$this->dateval = $init;
elseif (is_string($init))
$this->dateval = strtotime($init);
elseif ($init == NULL)
$this->dateval = time();
}
public function ISO8601Date() {
return gmdate('Y-m-d\TH:i:s\Z', $this->dateval);
}
}
?>

希望本文所述对大家的php程序设计有所帮助。