PHP生成plist数据的方法
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plistXML或文本格式
<?PHP
/**
*PropertyListclass
*ImplementswritingApplePropertyList(.plist)XMLandtextfilesfromanarray.
*
*@authorJesusA.Alvarez<zydeco@namedfork.net>
*/
functionplist_encode_text($obj){
$plist=newPropertyList($obj);
return$plist->text();
}
functionplist_encode_xml($obj){
$plist=newPropertyList($obj);
return$plist->xml();
}
classPropertyList
{
private$obj,$xml,$text;
publicfunction__construct($obj){
$this->obj=$obj;
}
privatestaticfunctionis_assoc($array){
return(is_array($array)&&0!==count(array_diff_key($array,array_keys(array_keys($array)))));
}
publicfunctionxml(){
if(isset($this->xml))return$this->xml;
$x=newXMLWriter();
$x->openMemory();
$x->setIndent(TRUE);
$x->startDocument('1.0','UTF-8');
$x->writeDTD('plist','-//Apple//DTDPLIST1.0//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$this->xml;
}
publicfunctiontext(){
if(isset($this->text))return$this->text;
$text='';
$this->textWriteValue($text,$this->obj);
$this->text=$text;
return$this->text;
}
privatefunctionxmlWriteDict(XMLWriter$x,&$dict){
$x->startElement('dict');
foreach($dictas$k=>&$v){
$x->writeElement('key',$k);
$this->xmlWriteValue($x,$v);
}
$x->endElement();//dict
}
privatefunctionxmlWriteArray(XMLWriter$x,&$arr){
$x->startElement('array');
foreach($arras&$v)
$this->xmlWriteValue($x,$v);
$x->endElement();//array
}
privatefunctionxmlWriteValue(XMLWriter$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("Unsupporteddatatypeinplist($v)",E_USER_WARNING);
$x->writeElement('string',$v);
}
}
privatefunctiontextWriteValue(&$text,&$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'))
$text.='<'.$v->hexEncodedData().'>';
elseif(is_a($v,'PlistDate'))
$text.='"'.$v->ISO8601Date().'"';
else{
trigger_error("Unsupporteddatatypeinplist($v)",E_USER_WARNING);
$this->textWriteString($text,$v);
}
}
privatefunctiontextWriteString(&$text,&$str){
$oldlocale=setlocale(LC_CTYPE,"0");
if(ctype_alnum($str))$text.=$str;
else$text.='"'.$this->textEncodeString($str).'"';
setlocale(LC_CTYPE,$oldlocale);
}
privatefunctiontextEncodeString(&$str){
$newstr='';
$i=0;
$len=strlen($str);
while($i<$len){
$ch=ord(substr($str,$i,1));
if($ch==0x22||$ch==0x5C){
//escapedoublequote,backslash
$newstr.='\\'.chr($ch);
$i++;
}elseif($ch>=0x07&&$ch<=0x0D){
//controlcharacterswithescapesequences
$newstr.='\\'.substr('abtnvfr',$ch-7,1);
$i++;
}elseif($ch<32){
//othernon-printablecharactersescapedasunicode
$newstr.=sprintf('\U%04x',$ch);
$i++;
}elseif($ch<128){
//asciiprintable
$newstr.=chr($ch);
$i++;
}elseif($ch==192||$ch==193){
//invalidencodingofASCIIcharacters
$i++;
}elseif(($ch&0xC0)==0x80){
//partofalostmultibytesequence,skip
$i++;
}elseif(($ch&0xE0)==0xC0){
//U+0080-U+07FF(2bytes)
$u=(($ch&0x1F)<<6)|(ord(substr($str,$i+1,1))&0x3F);
$newstr.=sprintf('\U%04x',$u);
$i+=2;
}elseif(($ch&0xF0)==0xE0){
//U+0800-U+FFFF(3bytes)
$u=(($ch&0x0F)<<12)|((ord(substr($str,$i+1,1))&0x3F)<<6)|(ord(substr($str,$i+2,1))&0x3F);
$newstr.=sprintf('\U%04x',$u);
$i+=3;
}elseif(($ch&0xF8)==0xF0){
//U+10000-U+3FFFF(4bytes)
$u=(($ch&0x07)<<18)|((ord(substr($str,$i+1,1))&0x3F)<<12)|((ord(substr($str,$i+2,1))&0x3F)<<6)|(ord(substr($str,$i+3,1))&0x3F);
$newstr.=sprintf('\U%04x',$u);
$i+=4;
}else{
//5and6bytesequencesarenotvalidUTF-8
$i++;
}
}
return$newstr;
}
privatefunctiontextWriteDict(&$text,&$dict,$indentLevel){
if(count($dict)==0){
$text.='{}';
return;
}
$text.="{\n";
$indent='';
$indentLevel++;
while(strlen($indent)<$indentLevel)$indent.="\t";
foreach($dictas$k=>&$v){
$text.=$indent;
$this->textWriteValue($text,$k);
$text.='=';
$this->textWriteValue($text,$v,$indentLevel);
$text.=";\n";
}
$text.=substr($indent,0,-1).'}';
}
privatefunctiontextWriteArray(&$text,&$arr,$indentLevel){
if(count($arr)==0){
$text.='()';
return;
}
$text.="(\n";
$indent='';
$indentLevel++;
while(strlen($indent)<$indentLevel)$indent.="\t";
foreach($arras&$v){
$text.=$indent;
$this->textWriteValue($text,$v,$indentLevel);
$text.=",\n";
}
$text.=substr($indent,0,-1).')';
}
}
classPlistData
{
private$data;
publicfunction__construct($str){
$this->data=$str;
}
publicfunctionbase64EncodedData(){
returnbase64_encode($this->data);
}
publicfunctionhexEncodedData(){
$len=strlen($this->data);
$hexstr='';
for($i=0;$i<$len;$i+=4)
$hexstr.=bin2hex(substr($this->data,$i,4)).'';
returnsubstr($hexstr,0,-1);
}
}
classPlistDate
{
private$dateval;
publicfunction__construct($init=NULL){
if(is_int($init))
$this->dateval=$init;
elseif(is_string($init))
$this->dateval=strtotime($init);
elseif($init==NULL)
$this->dateval=time();
}
publicfunctionISO8601Date(){
returngmdate('Y-m-d\TH:i:s\Z',$this->dateval);
}
}
?>
希望本文所述对大家的php程序设计有所帮助。