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How to generate plist data with PHP_PHP tutorial

WBOYOriginal: 2016-07-13 09:50:40947browse

How to generate plist data in PHP

This article describes the method of generating plist data in PHP. Share it with everyone for your reference. The details are as follows:

This code implements the conversion of PHP array into Apple plist XML or text format

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/**

* PropertyList class

* Implements writing Apple Property List (.plist) XML and text files from an array.

* @author Jesus A. Alvarez

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('Ux', $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('Ux', $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('Ux', $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('Ux', $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-dTH:i:sZ', $this->dateval);

}

希望本文所述对大家的php程序设计有所帮助。

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