Charset::instance() - Code Metrics - Inspection of "tests" - gggeek/phpxmlrpc - Measure and Improve Code Quality continuously with Scrutinizer

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by Gaetano

created 2020-12-31 14:37 UTC

Charset::instance() A

↳ Parent: Charset

Complexity

Conditions	2
Paths	2

Size

Total Lines	7
Code Lines	3

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	4
CRAP Score	2

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	2
eloc	3
c	1
b	0
f	0
nc	2
nop	0
dl	0
loc	7
rs	10
ccs	4
cts	4
cp	1
crap	2

<?php

namespace PhpXmlRpc\Helper;

use PhpXmlRpc\PhpXmlRpc;

class Charset
{
    // tables used for transcoding different charsets into us-ascii xml
    protected $xml_iso88591_Entities = array("in" => array(), "out" => array());

    /// @todo should we add to the latin-1 table the characters from cp_1252 range, i.e. 128 to 159 ?
    ///       Those will NOT be present in true ISO-8859-1, but will save the unwary windows user from sending junk
    ///       (though no luck when receiving them...)
    ///       Note also that, apparently, while 'ISO/IEC 8859-1' has no characters defined for bytes 128 to 159,
    ///       IANA ISO-8859-1 does have well-defined 'C1' control codes for those - wikipedia's page on latin-1 says:
    ///       "ISO-8859-1 is the IANA preferred name for this standard when supplemented with the C0 and C1 control codes from ISO/IEC 6429."
    ///       Check what mbstring/iconv do by default with those?
    //
    //protected $xml_cp1252_Entities = array('in' => array(), out' => array());

    protected $charset_supersets = array(
        'US-ASCII' => array('ISO-8859-1', 'ISO-8859-2', 'ISO-8859-3', 'ISO-8859-4',
            'ISO-8859-5', 'ISO-8859-6', 'ISO-8859-7', 'ISO-8859-8',
            'ISO-8859-9', 'ISO-8859-10', 'ISO-8859-11', 'ISO-8859-12',
            'ISO-8859-13', 'ISO-8859-14', 'ISO-8859-15', 'UTF-8',
            'EUC-JP', 'EUC-', 'EUC-KR', 'EUC-CN',),
    );

    protected static $instance = null;

    /**
     * This class is singleton for performance reasons.
     * @todo can't we just make $xml_iso88591_Entities a static variable instead ?
     *
     * @return Charset
     */
    public static function instance()
    {
        if (self::$instance === null) {
            self::$instance = new self();
        }

        return self::$instance;
    }

    /**
     * Force usage as singleton
     */
    protected function __construct()
    {
    }

    /**
     * @param string $tableName
     * @throws \Exception for unsupported $tableName
     */
    protected function buildConversionTable($tableName)
    {
        switch($tableName) {
            case 'xml_iso88591_Entities':
                if (count($this->xml_iso88591_Entities['in'])) {
                    return;
                }
                for ($i = 0; $i < 32; $i++) {
                    $this->xml_iso88591_Entities["in"][] = chr($i);
                    $this->xml_iso88591_Entities["out"][] = "&#{$i};";
                }

                for ($i = 160; $i < 256; $i++) {
                    $this->xml_iso88591_Entities["in"][] = chr($i);
                    $this->xml_iso88591_Entities["out"][] = "&#{$i};";
                }
                break;
            /*case 'xml_cp1252_Entities':
                if (count($this->xml_cp1252_Entities['in'])) {
                    return;
                }
                for ($i = 128; $i < 160; $i++)
                {
                    $this->xml_cp1252_Entities['in'][] = chr($i);
                }
                $this->xml_cp1252_Entities['out'] = array(
                    '&#x20AC;', '?',        '&#x201A;', '&#x0192;',
                    '&#x201E;', '&#x2026;', '&#x2020;', '&#x2021;',
                    '&#x02C6;', '&#x2030;', '&#x0160;', '&#x2039;',
                    '&#x0152;', '?',        '&#x017D;', '?',
                    '?',        '&#x2018;', '&#x2019;', '&#x201C;',
                    '&#x201D;', '&#x2022;', '&#x2013;', '&#x2014;',
                    '&#x02DC;', '&#x2122;', '&#x0161;', '&#x203A;',
                    '&#x0153;', '?',        '&#x017E;', '&#x0178;'
                );
                $this->buildConversionTable('xml_iso88591_Entities');
                break;*/
            default:
                throw new \Exception('Unsupported table: ' . $tableName);
        }
    }

    /**
     * Convert a string to the correct XML representation in a target charset.
     *
     * To help correct communication of non-ascii chars inside strings, regardless of the charset used when sending
     * requests, parsing them, sending responses and parsing responses, an option is to convert all non-ascii chars
     * present in the message into their equivalent 'charset entity'. Charset entities enumerated this way are
     * independent of the charset encoding used to transmit them, and all XML parsers are bound to understand them.
     * Note that in the std case we are not sending a charset encoding mime type along with http headers, so we are
     * bound by RFC 3023 to emit strict us-ascii.
     *
     * @todo do a bit of basic benchmarking (strtr vs. str_replace)
     * @todo make usage of iconv() or recode_string() or mb_string() where available
     *
     * @param string $data
     * @param string $srcEncoding
     * @param string $destEncoding
     *
     * @return string
     */
    public function encodeEntities($data, $srcEncoding = '', $destEncoding = '')
    {
        if ($srcEncoding == '') {
            // lame, but we know no better...
            $srcEncoding = PhpXmlRpc::$xmlrpc_internalencoding;
        }

        $conversion = strtoupper($srcEncoding . '_' . $destEncoding);
        switch ($conversion) {
            case 'ISO-8859-1_':
            case 'ISO-8859-1_US-ASCII':
                $this->buildConversionTable('xml_iso88591_Entities');
                $escapedData = str_replace(array('&', '"', "'", '<', '>'), array('&amp;', '&quot;', '&apos;', '&lt;', '&gt;'), $data);
                $escapedData = str_replace($this->xml_iso88591_Entities['in'], $this->xml_iso88591_Entities['out'], $escapedData);
                break;

            case 'ISO-8859-1_UTF-8':
                $escapedData = str_replace(array('&', '"', "'", '<', '>'), array('&amp;', '&quot;', '&apos;', '&lt;', '&gt;'), $data);
                $escapedData = utf8_encode($escapedData);
                break;

            case 'ISO-8859-1_ISO-8859-1':
            case 'US-ASCII_US-ASCII':
            case 'US-ASCII_UTF-8':
            case 'US-ASCII_':
            case 'US-ASCII_ISO-8859-1':
            case 'UTF-8_UTF-8':
            //case 'CP1252_CP1252':
                $escapedData = str_replace(array('&', '"', "'", '<', '>'), array('&amp;', '&quot;', '&apos;', '&lt;', '&gt;'), $data);
                break;

            case 'UTF-8_':
            case 'UTF-8_US-ASCII':
            case 'UTF-8_ISO-8859-1':
                // NB: this will choke on invalid UTF-8, going most likely beyond EOF
                $escapedData = '';
                // be kind to users creating string xmlrpc values out of different php types
                $data = (string)$data;
                $ns = strlen($data);
                for ($nn = 0; $nn < $ns; $nn++) {
                    $ch = $data[$nn];
                    $ii = ord($ch);
                    // 7 bits: 0bbbbbbb (127)
                    if ($ii < 128) {
                        /// @todo shall we replace this with a (supposedly) faster str_replace?
                        switch ($ii) {
                            case 34:
                                $escapedData .= '&quot;';
                                break;
                            case 38:
                                $escapedData .= '&amp;';
                                break;
                            case 39:
                                $escapedData .= '&apos;';
                                break;
                            case 60:
                                $escapedData .= '&lt;';
                                break;
                            case 62:
                                $escapedData .= '&gt;';
                                break;
                            default:
                                $escapedData .= $ch;
                        } // switch
                    } // 11 bits: 110bbbbb 10bbbbbb (2047)
                    elseif ($ii >> 5 == 6) {
                        $b1 = ($ii & 31);
                        $ii = ord($data[$nn + 1]);
                        $b2 = ($ii & 63);
                        $ii = ($b1 * 64) + $b2;
                        $ent = sprintf('&#%d;', $ii);
                        $escapedData .= $ent;
                        $nn += 1;
                    } // 16 bits: 1110bbbb 10bbbbbb 10bbbbbb
                    elseif ($ii >> 4 == 14) {
                        $b1 = ($ii & 15);
                        $ii = ord($data[$nn + 1]);
                        $b2 = ($ii & 63);
                        $ii = ord($data[$nn + 2]);
                        $b3 = ($ii & 63);
                        $ii = ((($b1 * 64) + $b2) * 64) + $b3;
                        $ent = sprintf('&#%d;', $ii);
                        $escapedData .= $ent;
                        $nn += 2;
                    } // 21 bits: 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb
                    elseif ($ii >> 3 == 30) {
                        $b1 = ($ii & 7);
                        $ii = ord($data[$nn + 1]);
                        $b2 = ($ii & 63);
                        $ii = ord($data[$nn + 2]);
                        $b3 = ($ii & 63);
                        $ii = ord($data[$nn + 3]);
                        $b4 = ($ii & 63);
                        $ii = ((((($b1 * 64) + $b2) * 64) + $b3) * 64) + $b4;
                        $ent = sprintf('&#%d;', $ii);
                        $escapedData .= $ent;
                        $nn += 3;
                    }
                }

                // when converting to latin-1, do not be so eager with using entities for characters 160-255
                if ($conversion == 'UTF-8_ISO-8859-1') {
                    $this->buildConversionTable('xml_iso88591_Entities');
                    $escapedData = str_replace(array_slice($this->xml_iso88591_Entities['out'], 32), array_slice($this->xml_iso88591_Entities['in'], 32), $escapedData);
                }
                break;

            /*
            case 'CP1252_':
            case 'CP1252_US-ASCII':
                $this->buildConversionTable('xml_cp1252_Entities');
                $escapedData = str_replace(array('&', '"', "'", '<', '>'), array('&amp;', '&quot;', '&apos;', '&lt;', '&gt;'), $data);
                $escapedData = str_replace($this->xml_iso88591_Entities']['in'], $this->xml_iso88591_Entities['out'], $escapedData);
                $escapedData = str_replace($this->xml_cp1252_Entities['in'], $this->xml_cp1252_Entities['out'], $escapedData);
                break;
            case 'CP1252_UTF-8':
                $this->buildConversionTable('xml_cp1252_Entities');
                $escapedData = str_replace(array('&', '"', "'", '<', '>'), array('&amp;', '&quot;', '&apos;', '&lt;', '&gt;'), $data);
                /// @todo we could use real UTF8 chars here instead of xml entities... (note that utf_8 encode all alone will NOT convert them)
                $escapedData = str_replace($this->xml_cp1252_Entities['in'], $this->xml_cp1252_Entities['out'], $escapedData);
                $escapedData = utf8_encode($escapedData);
                break;
            case 'CP1252_ISO-8859-1':
                $this->buildConversionTable('xml_cp1252_Entities');
                $escapedData = str_replace(array('&', '"', "'", '<', '>'), array('&amp;', '&quot;', '&apos;', '&lt;', '&gt;'), $data);
                // we might as well replace all funky chars with a '?' here, but we are kind and leave it to the receiving application layer to decide what to do with these weird entities...
                $escapedData = str_replace($this->xml_cp1252_Entities['in'], $this->xml_cp1252_Entities['out'], $escapedData);
                break;
            */

            default:
                $escapedData = '';
                Logger::instance()->errorLog('XML-RPC: ' . __METHOD__ . ": Converting from $srcEncoding to $destEncoding: not supported...");
        }

        return $escapedData;
    }

    /**
     * Checks if a given charset encoding is present in a list of encodings or if it is a valid subset of any encoding
     * in the list.
     *
     * @param string $encoding charset to be tested
     * @param string|array $validList comma separated list of valid charsets (or array of charsets)
     *
     * @return bool
     */
    public function isValidCharset($encoding, $validList)
    {
        if (is_string($validList)) {
            $validList = explode(',', $validList);
        }
        if (@in_array(strtoupper($encoding), $validList)) {
            return true;
        } else {
            if (array_key_exists($encoding, $this->charset_supersets)) {
                foreach ($validList as $allowed) {
                    if (in_array($allowed, $this->charset_supersets[$encoding])) {
                        return true;
                    }
                }
            }

            return false;
        }
    }

    /**
     * Used only for backwards compatibility
     * @deprecated
     *
     * @param string $charset
     *
     * @return array
     *
     * @throws \Exception for unknown/unsupported charsets
     */
    public function getEntities($charset)
    {
        //trigger_error('Method ' . __METHOD__ . ' is deprecated', E_USER_DEPRECATED);

        switch ($charset)
        {
            case 'iso88591':
                return $this->xml_iso88591_Entities;
            default:
                throw new \Exception('Unsupported charset: ' . $charset);
        }
    }

}


1		<?php
2
3		namespace PhpXmlRpc\Helper;
4
5		use PhpXmlRpc\PhpXmlRpc;
6
7		class Charset
8		{
9		// tables used for transcoding different charsets into us-ascii xml
10		protected $xml_iso88591_Entities = array("in" => array(), "out" => array());
11
12		/// @todo should we add to the latin-1 table the characters from cp_1252 range, i.e. 128 to 159 ?
13		/// Those will NOT be present in true ISO-8859-1, but will save the unwary windows user from sending junk
14		/// (though no luck when receiving them...)
15		/// Note also that, apparently, while 'ISO/IEC 8859-1' has no characters defined for bytes 128 to 159,
16		/// IANA ISO-8859-1 does have well-defined 'C1' control codes for those - wikipedia's page on latin-1 says:
17		/// "ISO-8859-1 is the IANA preferred name for this standard when supplemented with the C0 and C1 control codes from ISO/IEC 6429."
18		/// Check what mbstring/iconv do by default with those?
19		//
20		//protected $xml_cp1252_Entities = array('in' => array(), out' => array());
21
22		protected $charset_supersets = array(
23		'US-ASCII' => array('ISO-8859-1', 'ISO-8859-2', 'ISO-8859-3', 'ISO-8859-4',
24		'ISO-8859-5', 'ISO-8859-6', 'ISO-8859-7', 'ISO-8859-8',
25		'ISO-8859-9', 'ISO-8859-10', 'ISO-8859-11', 'ISO-8859-12',
26		'ISO-8859-13', 'ISO-8859-14', 'ISO-8859-15', 'UTF-8',
27		'EUC-JP', 'EUC-', 'EUC-KR', 'EUC-CN',),
28		);
29
30		protected static $instance = null;
31
32		/**
33		* This class is singleton for performance reasons.
34		* @todo can't we just make $xml_iso88591_Entities a static variable instead ?
35		*
36		* @return Charset
37		*/
38	604	public static function instance()
39		{
40	604	if (self::$instance === null) {
41	382	self::$instance = new self();
42		}
43
44	604	return self::$instance;
45		}
46
47		/**
48		* Force usage as singleton
49		*/
50	382	protected function __construct()
51		{
52	382	}
53
54		/**
55		* @param string $tableName
56		* @throws \Exception for unsupported $tableName
57		*/
58	494	protected function buildConversionTable($tableName)
59		{
60	494	switch($tableName) {
61	494	case 'xml_iso88591_Entities':
62	494	if (count($this->xml_iso88591_Entities['in'])) {
63	492	return;
64		}
65	19	for ($i = 0; $i < 32; $i++) {
66	19	$this->xml_iso88591_Entities["in"][] = chr($i);
67	19	$this->xml_iso88591_Entities["out"][] = "&#{$i};";
68		}
69
70	19	for ($i = 160; $i < 256; $i++) {
71	19	$this->xml_iso88591_Entities["in"][] = chr($i);
72	19	$this->xml_iso88591_Entities["out"][] = "&#{$i};";
73		}
74	19	break;
75		/*case 'xml_cp1252_Entities':
76		if (count($this->xml_cp1252_Entities['in'])) {
77		return;
78		}
79		for ($i = 128; $i < 160; $i++)
80		{
81		$this->xml_cp1252_Entities['in'][] = chr($i);
82		}
83		$this->xml_cp1252_Entities['out'] = array(
84		'€', '?', '‚', 'ƒ',
85		'„', '…', '†', '‡',
86		'ˆ', '‰', 'Š', '‹',
87		'Œ', '?', 'Ž', '?',
88		'?', '‘', '’', '“',
89		'”', '•', '–', '—',
90		'˜', '™', 'š', '›',
91		'œ', '?', 'ž', 'Ÿ'
92		);
93		$this->buildConversionTable('xml_iso88591_Entities');
94		break;*/
95		default:
96		throw new \Exception('Unsupported table: ' . $tableName);
97		}
98	19	}
99
100		/**
101		* Convert a string to the correct XML representation in a target charset.
102		*
103		* To help correct communication of non-ascii chars inside strings, regardless of the charset used when sending
104		* requests, parsing them, sending responses and parsing responses, an option is to convert all non-ascii chars
105		* present in the message into their equivalent 'charset entity'. Charset entities enumerated this way are
106		* independent of the charset encoding used to transmit them, and all XML parsers are bound to understand them.
107		* Note that in the std case we are not sending a charset encoding mime type along with http headers, so we are
108		* bound by RFC 3023 to emit strict us-ascii.
109		*
110		* @todo do a bit of basic benchmarking (strtr vs. str_replace)
111		* @todo make usage of iconv() or recode_string() or mb_string() where available
112		*
113		* @param string $data
114		* @param string $srcEncoding
115		* @param string $destEncoding
116		*
117		* @return string
118		*/
119	585	public function encodeEntities($data, $srcEncoding = '', $destEncoding = '')
120		{
121	585	if ($srcEncoding == '') {
122		// lame, but we know no better...
123		$srcEncoding = PhpXmlRpc::$xmlrpc_internalencoding;
124		}
125
126	585	$conversion = strtoupper($srcEncoding . '_' . $destEncoding);
127	585	switch ($conversion) {
128	585	case 'ISO-8859-1_':
129	392	case 'ISO-8859-1_US-ASCII':
130	487	$this->buildConversionTable('xml_iso88591_Entities');
131	487	$escapedData = str_replace(array('&', '"', "'", '<', '>'), array('&', '"', ''', '<', '>'), $data);
132	487	$escapedData = str_replace($this->xml_iso88591_Entities['in'], $this->xml_iso88591_Entities['out'], $escapedData);
133	487	break;
134
135	392	case 'ISO-8859-1_UTF-8':
136	28	$escapedData = str_replace(array('&', '"', "'", '<', '>'), array('&', '"', ''', '<', '>'), $data);
137	28	$escapedData = utf8_encode($escapedData);
138	28	break;
139
140	381	case 'ISO-8859-1_ISO-8859-1':
141	370	case 'US-ASCII_US-ASCII':
142	370	case 'US-ASCII_UTF-8':
143	370	case 'US-ASCII_':
144	370	case 'US-ASCII_ISO-8859-1':
145	370	case 'UTF-8_UTF-8':
146		//case 'CP1252_CP1252':
147	46	$escapedData = str_replace(array('&', '"', "'", '<', '>'), array('&', '"', ''', '<', '>'), $data);
148	46	break;
149
150	352	case 'UTF-8_':
151	24	case 'UTF-8_US-ASCII':
152	24	case 'UTF-8_ISO-8859-1':
153		// NB: this will choke on invalid UTF-8, going most likely beyond EOF
154	352	$escapedData = '';
155		// be kind to users creating string xmlrpc values out of different php types
156	352	$data = (string)$data;
157	352	$ns = strlen($data);
158	352	for ($nn = 0; $nn < $ns; $nn++) {
159	352	$ch = $data[$nn];
160	352	$ii = ord($ch);
161		// 7 bits: 0bbbbbbb (127)
162	352	if ($ii < 128) {
163		/// @todo shall we replace this with a (supposedly) faster str_replace?
164	345	switch ($ii) {
165	345	case 34:
166	20	$escapedData .= '"';
167	20	break;
168	345	case 38:
169	20	$escapedData .= '&';
170	20	break;
171	345	case 39:
172	22	$escapedData .= ''';
173	22	break;
174	345	case 60:
175	20	$escapedData .= '<';
176	20	break;
177	345	case 62:
178	20	$escapedData .= '>';
179	20	break;
180		default:
181	345	$escapedData .= $ch;
182		} // switch
183		} // 11 bits: 110bbbbb 10bbbbbb (2047)
184	71	elseif ($ii >> 5 == 6) {
185	67	$b1 = ($ii & 31);
186	67	$ii = ord($data[$nn + 1]);
187	67	$b2 = ($ii & 63);
188	67	$ii = ($b1 * 64) + $b2;
189	67	$ent = sprintf('&#%d;', $ii);
190	67	$escapedData .= $ent;
191	67	$nn += 1;
192		} // 16 bits: 1110bbbb 10bbbbbb 10bbbbbb
193	31	elseif ($ii >> 4 == 14) {
194	31	$b1 = ($ii & 15);
195	31	$ii = ord($data[$nn + 1]);
196	31	$b2 = ($ii & 63);
197	31	$ii = ord($data[$nn + 2]);
198	31	$b3 = ($ii & 63);
199	31	$ii = ((($b1 * 64) + $b2) * 64) + $b3;
200	31	$ent = sprintf('&#%d;', $ii);
201	31	$escapedData .= $ent;
202	31	$nn += 2;
203		} // 21 bits: 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb
204		elseif ($ii >> 3 == 30) {
205		$b1 = ($ii & 7);
206		$ii = ord($data[$nn + 1]);
207		$b2 = ($ii & 63);
208		$ii = ord($data[$nn + 2]);
209		$b3 = ($ii & 63);
210		$ii = ord($data[$nn + 3]);
211		$b4 = ($ii & 63);
212		$ii = ((((($b1 * 64) + $b2) * 64) + $b3) * 64) + $b4;
213		$ent = sprintf('&#%d;', $ii);
214		$escapedData .= $ent;
215		$nn += 3;
216		}
217		}
218
219		// when converting to latin-1, do not be so eager with using entities for characters 160-255
220	352	if ($conversion == 'UTF-8_ISO-8859-1') {
221	24	$this->buildConversionTable('xml_iso88591_Entities');
222	24	$escapedData = str_replace(array_slice($this->xml_iso88591_Entities['out'], 32), array_slice($this->xml_iso88591_Entities['in'], 32), $escapedData);
223		}
224	352	break;
225
226		/*
227		case 'CP1252_':
228		case 'CP1252_US-ASCII':
229		$this->buildConversionTable('xml_cp1252_Entities');
230		$escapedData = str_replace(array('&', '"', "'", '<', '>'), array('&', '"', ''', '<', '>'), $data);
231		$escapedData = str_replace($this->xml_iso88591_Entities']['in'], $this->xml_iso88591_Entities['out'], $escapedData);
232		$escapedData = str_replace($this->xml_cp1252_Entities['in'], $this->xml_cp1252_Entities['out'], $escapedData);
233		break;
234		case 'CP1252_UTF-8':
235		$this->buildConversionTable('xml_cp1252_Entities');
236		$escapedData = str_replace(array('&', '"', "'", '<', '>'), array('&', '"', ''', '<', '>'), $data);
237		/// @todo we could use real UTF8 chars here instead of xml entities... (note that utf_8 encode all alone will NOT convert them)
238		$escapedData = str_replace($this->xml_cp1252_Entities['in'], $this->xml_cp1252_Entities['out'], $escapedData);
239		$escapedData = utf8_encode($escapedData);
240		break;
241		case 'CP1252_ISO-8859-1':
242		$this->buildConversionTable('xml_cp1252_Entities');
243		$escapedData = str_replace(array('&', '"', "'", '<', '>'), array('&', '"', ''', '<', '>'), $data);
244		// we might as well replace all funky chars with a '?' here, but we are kind and leave it to the receiving application layer to decide what to do with these weird entities...
245		$escapedData = str_replace($this->xml_cp1252_Entities['in'], $this->xml_cp1252_Entities['out'], $escapedData);
246		break;
247		*/
248
249		default:
250		$escapedData = '';
251		Logger::instance()->errorLog('XML-RPC: ' . __METHOD__ . ": Converting from $srcEncoding to $destEncoding: not supported...");
252		}
253
254	585	return $escapedData;
255		}
256
257		/**
258		* Checks if a given charset encoding is present in a list of encodings or if it is a valid subset of any encoding
259		* in the list.
260		*
261		* @param string $encoding charset to be tested
262		* @param string\|array $validList comma separated list of valid charsets (or array of charsets)
263		*
264		* @return bool
265		*/
266		public function isValidCharset($encoding, $validList)
267		{
268		if (is_string($validList)) {
269		$validList = explode(',', $validList);
270		}
271		if (@in_array(strtoupper($encoding), $validList)) {
272		return true;
273		} else {
274		if (array_key_exists($encoding, $this->charset_supersets)) {
275		foreach ($validList as $allowed) {
276		if (in_array($allowed, $this->charset_supersets[$encoding])) {
277		return true;
278		}
279		}
280		}
281
282		return false;
283		}
284		}
285
286		/**
287		* Used only for backwards compatibility
288		* @deprecated
289		*
290		* @param string $charset
291		*
292		* @return array
293		*
294		* @throws \Exception for unknown/unsupported charsets
295		*/
296		public function getEntities($charset)
297		{
298		//trigger_error('Method ' . __METHOD__ . ' is deprecated', E_USER_DEPRECATED);
299
300		switch ($charset)
301		{
302		case 'iso88591':
303		return $this->xml_iso88591_Entities;
304		default:
305		throw new \Exception('Unsupported charset: ' . $charset);
306		}
307		}
308
309		}
310

gggeek / phpxmlrpc

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Charset::instance() A

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