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

<?PHP/** * PropertyList class * Implements writing Apple Property List (.plist) XML and text files from an array. * * @author Jesus A. Alvarez <zydeco@namedfork.net> */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:///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 .= '<' . $v->hexEncodedData() . '>';elseif (is_a($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 < $len) {$ch = ord(substr($str, $i, 1));if ($ch == 0x22 || $ch == 0x5C) {// escape double quote, backslash$newstr .= '\\' . chr($ch);$i++;} else if ($ch >= 0x07 && $ch <= 0x0D ){// control characters with escape sequences$newstr .= '\\' . substr('abtnvfr', $ch - 7, 1);$i++;} else if ($ch < 32) {// other non-printable characters escaped as unicode$newstr .= sprintf('\U%04x', $ch);$i++;} else if ($ch < 128) {// ascii printable$newstr .= chr($ch);$i++;} else if ($ch == 192 || $ch == 193) {// invalid encoding of ASCII characters$i++;} else if (($ch & 0xC0) == 0x80){// part of a lost multibyte sequence, skip$i++;} else if (($ch & 0xE0) == 0xC0) {// U+0080 - U+07FF (2 bytes)$u = (($ch & 0x1F) << 6) | (ord(substr($str, $i+1, 1)) & 0x3F);$newstr .= sprintf('\U%04x', $u);$i += 2;} else if (($ch & 0xF0) == 0xE0) {// U+0800 - U+FFFF (3 bytes)$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;} else if (($ch & 0xF8) == 0xF0) {// U+10000 - U+3FFFF (4 bytes)$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 {// 5 and 6 byte sequences are not valid UTF-8$i++;}}return $newstr;}private function textWriteDict(&$text, &$dict, $indentLevel) {if (count($dict) == 0) {$text .= '{}';return;}$text .= "{\n";$indent = '';$indentLevel++;while(strlen($indent) < $indentLevel) $indent .= "\t";foreach($dict as $k => &$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) < $indentLevel) $indent .= "\t";foreach($arr as &$v) {$text .= $indent;$this->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 < $len; $i += 4)$hexstr .= bin2hex(substr($this->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。