本篇文章主要介绍php数组转换为苹果plist xml或文本格式的功能，感兴趣的朋友参考下，希望对大家有所帮助。
本文实例讲述了php生成plist数据的方法。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://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 .= '<' . $v->hexencodeddata() . '>';elseif (is_a($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);}}?>
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以上就是php数组转换为苹果plist xml或文本格式的功能的详细内容。