Passed
Push — master ( 9542e6...b5fb3e )
by Richard
09:04
created

Mbstring::mb_strtoupper()   A

Complexity

Conditions 1
Paths 1

Size

Total Lines 3
Code Lines 1

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
eloc 1
dl 0
loc 3
rs 10
c 0
b 0
f 0
cc 1
nc 1
nop 2
1
<?php
2
3
/*
4
 * This file is part of the Symfony package.
5
 *
6
 * (c) Fabien Potencier <[email protected]>
7
 *
8
 * For the full copyright and license information, please view the LICENSE
9
 * file that was distributed with this source code.
10
 */
11
12
namespace Symfony\Polyfill\Mbstring;
13
14
/**
15
 * Partial mbstring implementation in PHP, iconv based, UTF-8 centric.
16
 *
17
 * Implemented:
18
 * - mb_chr                  - Returns a specific character from its Unicode code point
19
 * - mb_convert_encoding     - Convert character encoding
20
 * - mb_convert_variables    - Convert character code in variable(s)
21
 * - mb_decode_mimeheader    - Decode string in MIME header field
22
 * - mb_encode_mimeheader    - Encode string for MIME header XXX NATIVE IMPLEMENTATION IS REALLY BUGGED
23
 * - mb_decode_numericentity - Decode HTML numeric string reference to character
24
 * - mb_encode_numericentity - Encode character to HTML numeric string reference
25
 * - mb_convert_case         - Perform case folding on a string
26
 * - mb_detect_encoding      - Detect character encoding
27
 * - mb_get_info             - Get internal settings of mbstring
28
 * - mb_http_input           - Detect HTTP input character encoding
29
 * - mb_http_output          - Set/Get HTTP output character encoding
30
 * - mb_internal_encoding    - Set/Get internal character encoding
31
 * - mb_list_encodings       - Returns an array of all supported encodings
32
 * - mb_ord                  - Returns the Unicode code point of a character
33
 * - mb_output_handler       - Callback function converts character encoding in output buffer
34
 * - mb_scrub                - Replaces ill-formed byte sequences with substitute characters
35
 * - mb_strlen               - Get string length
36
 * - mb_strpos               - Find position of first occurrence of string in a string
37
 * - mb_strrpos              - Find position of last occurrence of a string in a string
38
 * - mb_strtolower           - Make a string lowercase
39
 * - mb_strtoupper           - Make a string uppercase
40
 * - mb_substitute_character - Set/Get substitution character
41
 * - mb_substr               - Get part of string
42
 * - mb_stripos              - Finds position of first occurrence of a string within another, case insensitive
43
 * - mb_stristr              - Finds first occurrence of a string within another, case insensitive
44
 * - mb_strrchr              - Finds the last occurrence of a character in a string within another
45
 * - mb_strrichr             - Finds the last occurrence of a character in a string within another, case insensitive
46
 * - mb_strripos             - Finds position of last occurrence of a string within another, case insensitive
47
 * - mb_strstr               - Finds first occurrence of a string within another
48
 * - mb_strwidth             - Return width of string
49
 * - mb_substr_count         - Count the number of substring occurrences
50
 *
51
 * Not implemented:
52
 * - mb_convert_kana         - Convert "kana" one from another ("zen-kaku", "han-kaku" and more)
53
 * - mb_ereg_*               - Regular expression with multibyte support
54
 * - mb_parse_str            - Parse GET/POST/COOKIE data and set global variable
55
 * - mb_preferred_mime_name  - Get MIME charset string
56
 * - mb_regex_encoding       - Returns current encoding for multibyte regex as string
57
 * - mb_regex_set_options    - Set/Get the default options for mbregex functions
58
 * - mb_send_mail            - Send encoded mail
59
 * - mb_split                - Split multibyte string using regular expression
60
 * - mb_strcut               - Get part of string
61
 * - mb_strimwidth           - Get truncated string with specified width
62
 *
63
 * @author Nicolas Grekas <[email protected]>
64
 *
65
 * @internal
66
 */
67
final class Mbstring
68
{
69
    const MB_CASE_FOLD = PHP_INT_MAX;
70
71
    private static $encodingList = array('ASCII', 'UTF-8');
72
    private static $language = 'neutral';
73
    private static $internalEncoding = 'UTF-8';
74
    private static $caseFold = array(
75
        array('µ', 'ſ', "\xCD\x85", 'ς', "\xCF\x90", "\xCF\x91", "\xCF\x95", "\xCF\x96", "\xCF\xB0", "\xCF\xB1", "\xCF\xB5", "\xE1\xBA\x9B", "\xE1\xBE\xBE"),
76
        array('μ', 's', 'ι',        'σ', 'β',        'θ',        'φ',        'π',        'κ',        'ρ',        'ε',        "\xE1\xB9\xA1", 'ι'),
77
    );
78
79
    public static function mb_convert_encoding($s, $toEncoding, $fromEncoding = null)
80
    {
81
        if (\is_array($fromEncoding) || false !== strpos($fromEncoding, ',')) {
82
            $fromEncoding = self::mb_detect_encoding($s, $fromEncoding);
83
        } else {
84
            $fromEncoding = self::getEncoding($fromEncoding);
85
        }
86
87
        $toEncoding = self::getEncoding($toEncoding);
88
89
        if ('BASE64' === $fromEncoding) {
90
            $s = base64_decode($s);
91
            $fromEncoding = $toEncoding;
92
        }
93
94
        if ('BASE64' === $toEncoding) {
95
            return base64_encode($s);
96
        }
97
98
        if ('HTML-ENTITIES' === $toEncoding || 'HTML' === $toEncoding) {
99
            if ('HTML-ENTITIES' === $fromEncoding || 'HTML' === $fromEncoding) {
100
                $fromEncoding = 'Windows-1252';
101
            }
102
            if ('UTF-8' !== $fromEncoding) {
103
                $s = iconv($fromEncoding, 'UTF-8//IGNORE', $s);
104
            }
105
106
            return preg_replace_callback('/[\x80-\xFF]+/', array(__CLASS__, 'html_encoding_callback'), $s);
107
        }
108
109
        if ('HTML-ENTITIES' === $fromEncoding) {
110
            $s = html_entity_decode($s, ENT_COMPAT, 'UTF-8');
111
            $fromEncoding = 'UTF-8';
112
        }
113
114
        return iconv($fromEncoding, $toEncoding.'//IGNORE', $s);
115
    }
116
117
    public static function mb_convert_variables($toEncoding, $fromEncoding, &$a = null, &$b = null, &$c = null, &$d = null, &$e = null, &$f = null)
118
    {
119
        $vars = array(&$a, &$b, &$c, &$d, &$e, &$f);
120
121
        $ok = true;
122
        array_walk_recursive($vars, function (&$v) use (&$ok, $toEncoding, $fromEncoding) {
123
            if (false === $v = Mbstring::mb_convert_encoding($v, $toEncoding, $fromEncoding)) {
124
                $ok = false;
125
            }
126
        });
127
128
        return $ok ? $fromEncoding : false;
129
    }
130
131
    public static function mb_decode_mimeheader($s)
132
    {
133
        return iconv_mime_decode($s, 2, self::$internalEncoding);
134
    }
135
136
    public static function mb_encode_mimeheader($s, $charset = null, $transferEncoding = null, $linefeed = null, $indent = null)
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The parameter $s is not used and could be removed. ( Ignorable by Annotation )

If this is a false-positive, you can also ignore this issue in your code via the ignore-unused  annotation

136
    public static function mb_encode_mimeheader(/** @scrutinizer ignore-unused */ $s, $charset = null, $transferEncoding = null, $linefeed = null, $indent = null)

This check looks for parameters that have been defined for a function or method, but which are not used in the method body.

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The parameter $linefeed is not used and could be removed. ( Ignorable by Annotation )

If this is a false-positive, you can also ignore this issue in your code via the ignore-unused  annotation

136
    public static function mb_encode_mimeheader($s, $charset = null, $transferEncoding = null, /** @scrutinizer ignore-unused */ $linefeed = null, $indent = null)

This check looks for parameters that have been defined for a function or method, but which are not used in the method body.

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Unused Code introduced by
The parameter $transferEncoding is not used and could be removed. ( Ignorable by Annotation )

If this is a false-positive, you can also ignore this issue in your code via the ignore-unused  annotation

136
    public static function mb_encode_mimeheader($s, $charset = null, /** @scrutinizer ignore-unused */ $transferEncoding = null, $linefeed = null, $indent = null)

This check looks for parameters that have been defined for a function or method, but which are not used in the method body.

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Unused Code introduced by
The parameter $charset is not used and could be removed. ( Ignorable by Annotation )

If this is a false-positive, you can also ignore this issue in your code via the ignore-unused  annotation

136
    public static function mb_encode_mimeheader($s, /** @scrutinizer ignore-unused */ $charset = null, $transferEncoding = null, $linefeed = null, $indent = null)

This check looks for parameters that have been defined for a function or method, but which are not used in the method body.

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Unused Code introduced by
The parameter $indent is not used and could be removed. ( Ignorable by Annotation )

If this is a false-positive, you can also ignore this issue in your code via the ignore-unused  annotation

136
    public static function mb_encode_mimeheader($s, $charset = null, $transferEncoding = null, $linefeed = null, /** @scrutinizer ignore-unused */ $indent = null)

This check looks for parameters that have been defined for a function or method, but which are not used in the method body.

Loading history...
137
    {
138
        trigger_error('mb_encode_mimeheader() is bugged. Please use iconv_mime_encode() instead', E_USER_WARNING);
139
    }
140
141
    public static function mb_decode_numericentity($s, $convmap, $encoding = null)
142
    {
143
        if (null !== $s && !\is_scalar($s) && !(\is_object($s) && \method_exists($s, '__toString'))) {
144
            trigger_error('mb_decode_numericentity() expects parameter 1 to be string, '.\gettype($s).' given', E_USER_WARNING);
145
146
            return null;
147
        }
148
149
        if (!\is_array($convmap) || !$convmap) {
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Bug Best Practice introduced by
The expression $convmap of type array is implicitly converted to a boolean; are you sure this is intended? If so, consider using empty($expr) instead to make it clear that you intend to check for an array without elements.

This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.

Consider making the comparison explicit by using empty(..) or ! empty(...) instead.

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150
            return false;
151
        }
152
153
        if (null !== $encoding && !\is_scalar($encoding)) {
154
            trigger_error('mb_decode_numericentity() expects parameter 3 to be string, '.\gettype($s).' given', E_USER_WARNING);
155
156
            return '';  // Instead of null (cf. mb_encode_numericentity).
157
        }
158
159
        $s = (string) $s;
160
        if ('' === $s) {
161
            return '';
162
        }
163
164
        $encoding = self::getEncoding($encoding);
165
166
        if ('UTF-8' === $encoding) {
167
            $encoding = null;
168
            if (!preg_match('//u', $s)) {
169
                $s = @iconv('UTF-8', 'UTF-8//IGNORE', $s);
170
            }
171
        } else {
172
            $s = iconv($encoding, 'UTF-8//IGNORE', $s);
173
        }
174
175
        $cnt = floor(\count($convmap) / 4) * 4;
176
177
        for ($i = 0; $i < $cnt; $i += 4) {
178
            // collector_decode_htmlnumericentity ignores $convmap[$i + 3]
179
            $convmap[$i] += $convmap[$i + 2];
180
            $convmap[$i + 1] += $convmap[$i + 2];
181
        }
182
183
        $s = preg_replace_callback('/&#(?:0*([0-9]+)|x0*([0-9a-fA-F]+))(?!&);?/', function (array $m) use ($cnt, $convmap) {
184
            $c = isset($m[2]) ? (int) hexdec($m[2]) : $m[1];
185
            for ($i = 0; $i < $cnt; $i += 4) {
186
                if ($c >= $convmap[$i] && $c <= $convmap[$i + 1]) {
187
                    return Mbstring::mb_chr($c - $convmap[$i + 2]);
188
                }
189
            }
190
191
            return $m[0];
192
        }, $s);
193
194
        if (null === $encoding) {
195
            return $s;
196
        }
197
198
        return iconv('UTF-8', $encoding.'//IGNORE', $s);
199
    }
200
201
    public static function mb_encode_numericentity($s, $convmap, $encoding = null, $is_hex = false)
202
    {
203
        if (null !== $s && !\is_scalar($s) && !(\is_object($s) && \method_exists($s, '__toString'))) {
204
            trigger_error('mb_encode_numericentity() expects parameter 1 to be string, '.\gettype($s).' given', E_USER_WARNING);
205
206
            return null;
207
        }
208
209
        if (!\is_array($convmap) || !$convmap) {
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Bug Best Practice introduced by
The expression $convmap of type array is implicitly converted to a boolean; are you sure this is intended? If so, consider using empty($expr) instead to make it clear that you intend to check for an array without elements.

This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.

Consider making the comparison explicit by using empty(..) or ! empty(...) instead.

Loading history...
210
            return false;
211
        }
212
213
        if (null !== $encoding && !\is_scalar($encoding)) {
214
            trigger_error('mb_encode_numericentity() expects parameter 3 to be string, '.\gettype($s).' given', E_USER_WARNING);
215
216
            return null;  // Instead of '' (cf. mb_decode_numericentity).
217
        }
218
219
        if (null !== $is_hex && !\is_scalar($is_hex)) {
220
            trigger_error('mb_encode_numericentity() expects parameter 4 to be boolean, '.\gettype($s).' given', E_USER_WARNING);
221
222
            return null;
223
        }
224
225
        $s = (string) $s;
226
        if ('' === $s) {
227
            return '';
228
        }
229
230
        $encoding = self::getEncoding($encoding);
231
232
        if ('UTF-8' === $encoding) {
233
            $encoding = null;
234
            if (!preg_match('//u', $s)) {
235
                $s = @iconv('UTF-8', 'UTF-8//IGNORE', $s);
236
            }
237
        } else {
238
            $s = iconv($encoding, 'UTF-8//IGNORE', $s);
239
        }
240
241
        static $ulenMask = array("\xC0" => 2, "\xD0" => 2, "\xE0" => 3, "\xF0" => 4);
242
243
        $cnt = floor(\count($convmap) / 4) * 4;
244
        $i = 0;
245
        $len = \strlen($s);
246
        $result = '';
247
248
        while ($i < $len) {
249
            $ulen = $s[$i] < "\x80" ? 1 : $ulenMask[$s[$i] & "\xF0"];
250
            $uchr = substr($s, $i, $ulen);
251
            $i += $ulen;
252
            $c = self::mb_ord($uchr);
253
254
            for ($j = 0; $j < $cnt; $j += 4) {
255
                if ($c >= $convmap[$j] && $c <= $convmap[$j + 1]) {
256
                    $cOffset = ($c + $convmap[$j + 2]) & $convmap[$j + 3];
257
                    $result .= $is_hex ? sprintf('&#x%X;', $cOffset) : '&#'.$cOffset.';';
258
                    continue 2;
259
                }
260
            }
261
            $result .= $uchr;
262
        }
263
264
        if (null === $encoding) {
265
            return $result;
266
        }
267
268
        return iconv('UTF-8', $encoding.'//IGNORE', $result);
269
    }
270
271
    public static function mb_convert_case($s, $mode, $encoding = null)
272
    {
273
        $s = (string) $s;
274
        if ('' === $s) {
275
            return '';
276
        }
277
278
        $encoding = self::getEncoding($encoding);
279
280
        if ('UTF-8' === $encoding) {
281
            $encoding = null;
282
            if (!preg_match('//u', $s)) {
283
                $s = @iconv('UTF-8', 'UTF-8//IGNORE', $s);
284
            }
285
        } else {
286
            $s = iconv($encoding, 'UTF-8//IGNORE', $s);
287
        }
288
289
        if (MB_CASE_TITLE == $mode) {
290
            static $titleRegexp = null;
291
            if (null === $titleRegexp) {
292
                $titleRegexp = self::getData('titleCaseRegexp');
293
            }
294
            $s = preg_replace_callback($titleRegexp, array(__CLASS__, 'title_case'), $s);
295
        } else {
296
            if (MB_CASE_UPPER == $mode) {
297
                static $upper = null;
298
                if (null === $upper) {
299
                    $upper = self::getData('upperCase');
300
                }
301
                $map = $upper;
302
            } else {
303
                if (self::MB_CASE_FOLD === $mode) {
304
                    $s = str_replace(self::$caseFold[0], self::$caseFold[1], $s);
305
                }
306
307
                static $lower = null;
308
                if (null === $lower) {
309
                    $lower = self::getData('lowerCase');
310
                }
311
                $map = $lower;
312
            }
313
314
            static $ulenMask = array("\xC0" => 2, "\xD0" => 2, "\xE0" => 3, "\xF0" => 4);
315
316
            $i = 0;
317
            $len = \strlen($s);
318
319
            while ($i < $len) {
320
                $ulen = $s[$i] < "\x80" ? 1 : $ulenMask[$s[$i] & "\xF0"];
321
                $uchr = substr($s, $i, $ulen);
322
                $i += $ulen;
323
324
                if (isset($map[$uchr])) {
325
                    $uchr = $map[$uchr];
326
                    $nlen = \strlen($uchr);
327
328
                    if ($nlen == $ulen) {
329
                        $nlen = $i;
330
                        do {
331
                            $s[--$nlen] = $uchr[--$ulen];
332
                        } while ($ulen);
333
                    } else {
334
                        $s = substr_replace($s, $uchr, $i - $ulen, $ulen);
335
                        $len += $nlen - $ulen;
336
                        $i += $nlen - $ulen;
337
                    }
338
                }
339
            }
340
        }
341
342
        if (null === $encoding) {
343
            return $s;
344
        }
345
346
        return iconv('UTF-8', $encoding.'//IGNORE', $s);
347
    }
348
349
    public static function mb_internal_encoding($encoding = null)
350
    {
351
        if (null === $encoding) {
352
            return self::$internalEncoding;
353
        }
354
355
        $encoding = self::getEncoding($encoding);
356
357
        if ('UTF-8' === $encoding || false !== @iconv($encoding, $encoding, ' ')) {
358
            self::$internalEncoding = $encoding;
359
360
            return true;
361
        }
362
363
        return false;
364
    }
365
366
    public static function mb_language($lang = null)
367
    {
368
        if (null === $lang) {
369
            return self::$language;
370
        }
371
372
        switch ($lang = strtolower($lang)) {
373
            case 'uni':
374
            case 'neutral':
375
                self::$language = $lang;
376
377
                return true;
378
        }
379
380
        return false;
381
    }
382
383
    public static function mb_list_encodings()
384
    {
385
        return array('UTF-8');
386
    }
387
388
    public static function mb_encoding_aliases($encoding)
389
    {
390
        switch (strtoupper($encoding)) {
391
            case 'UTF8':
392
            case 'UTF-8':
393
                return array('utf8');
394
        }
395
396
        return false;
397
    }
398
399
    public static function mb_check_encoding($var = null, $encoding = null)
400
    {
401
        if (null === $encoding) {
402
            if (null === $var) {
403
                return false;
404
            }
405
            $encoding = self::$internalEncoding;
406
        }
407
408
        return self::mb_detect_encoding($var, array($encoding)) || false !== @iconv($encoding, $encoding, $var);
409
    }
410
411
    public static function mb_detect_encoding($str, $encodingList = null, $strict = false)
0 ignored issues
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Unused Code introduced by
The parameter $strict is not used and could be removed. ( Ignorable by Annotation )

If this is a false-positive, you can also ignore this issue in your code via the ignore-unused  annotation

411
    public static function mb_detect_encoding($str, $encodingList = null, /** @scrutinizer ignore-unused */ $strict = false)

This check looks for parameters that have been defined for a function or method, but which are not used in the method body.

Loading history...
412
    {
413
        if (null === $encodingList) {
414
            $encodingList = self::$encodingList;
415
        } else {
416
            if (!\is_array($encodingList)) {
417
                $encodingList = array_map('trim', explode(',', $encodingList));
418
            }
419
            $encodingList = array_map('strtoupper', $encodingList);
420
        }
421
422
        foreach ($encodingList as $enc) {
423
            switch ($enc) {
424
                case 'ASCII':
425
                    if (!preg_match('/[\x80-\xFF]/', $str)) {
426
                        return $enc;
427
                    }
428
                    break;
429
430
                case 'UTF8':
431
                case 'UTF-8':
432
                    if (preg_match('//u', $str)) {
433
                        return 'UTF-8';
434
                    }
435
                    break;
436
437
                default:
438
                    if (0 === strncmp($enc, 'ISO-8859-', 9)) {
439
                        return $enc;
440
                    }
441
            }
442
        }
443
444
        return false;
445
    }
446
447
    public static function mb_detect_order($encodingList = null)
448
    {
449
        if (null === $encodingList) {
450
            return self::$encodingList;
451
        }
452
453
        if (!\is_array($encodingList)) {
454
            $encodingList = array_map('trim', explode(',', $encodingList));
455
        }
456
        $encodingList = array_map('strtoupper', $encodingList);
457
458
        foreach ($encodingList as $enc) {
459
            switch ($enc) {
460
                default:
461
                    if (strncmp($enc, 'ISO-8859-', 9)) {
462
                        return false;
463
                    }
464
                    // no break
465
                case 'ASCII':
466
                case 'UTF8':
467
                case 'UTF-8':
468
            }
469
        }
470
471
        self::$encodingList = $encodingList;
472
473
        return true;
474
    }
475
476
    public static function mb_strlen($s, $encoding = null)
477
    {
478
        $encoding = self::getEncoding($encoding);
479
        if ('CP850' === $encoding || 'ASCII' === $encoding) {
480
            return \strlen($s);
481
        }
482
483
        return @iconv_strlen($s, $encoding);
484
    }
485
486
    public static function mb_strpos($haystack, $needle, $offset = 0, $encoding = null)
487
    {
488
        $encoding = self::getEncoding($encoding);
489
        if ('CP850' === $encoding || 'ASCII' === $encoding) {
490
            return strpos($haystack, $needle, $offset);
491
        }
492
493
        $needle = (string) $needle;
494
        if ('' === $needle) {
495
            trigger_error(__METHOD__.': Empty delimiter', E_USER_WARNING);
496
497
            return false;
498
        }
499
500
        return iconv_strpos($haystack, $needle, $offset, $encoding);
501
    }
502
503
    public static function mb_strrpos($haystack, $needle, $offset = 0, $encoding = null)
504
    {
505
        $encoding = self::getEncoding($encoding);
506
        if ('CP850' === $encoding || 'ASCII' === $encoding) {
507
            return strrpos($haystack, $needle, $offset);
508
        }
509
510
        if ($offset != (int) $offset) {
511
            $offset = 0;
512
        } elseif ($offset = (int) $offset) {
513
            if ($offset < 0) {
514
                $haystack = self::mb_substr($haystack, 0, $offset, $encoding);
515
                $offset = 0;
516
            } else {
517
                $haystack = self::mb_substr($haystack, $offset, 2147483647, $encoding);
518
            }
519
        }
520
521
        $pos = iconv_strrpos($haystack, $needle, $encoding);
522
523
        return false !== $pos ? $offset + $pos : false;
524
    }
525
526
    public static function mb_strtolower($s, $encoding = null)
527
    {
528
        return self::mb_convert_case($s, MB_CASE_LOWER, $encoding);
529
    }
530
531
    public static function mb_strtoupper($s, $encoding = null)
532
    {
533
        return self::mb_convert_case($s, MB_CASE_UPPER, $encoding);
534
    }
535
536
    public static function mb_substitute_character($c = null)
537
    {
538
        if (0 === strcasecmp($c, 'none')) {
539
            return true;
540
        }
541
542
        return null !== $c ? false : 'none';
543
    }
544
545
    public static function mb_substr($s, $start, $length = null, $encoding = null)
546
    {
547
        $encoding = self::getEncoding($encoding);
548
        if ('CP850' === $encoding || 'ASCII' === $encoding) {
549
            return substr($s, $start, null === $length ? 2147483647 : $length);
550
        }
551
552
        if ($start < 0) {
553
            $start = iconv_strlen($s, $encoding) + $start;
554
            if ($start < 0) {
555
                $start = 0;
556
            }
557
        }
558
559
        if (null === $length) {
560
            $length = 2147483647;
561
        } elseif ($length < 0) {
562
            $length = iconv_strlen($s, $encoding) + $length - $start;
563
            if ($length < 0) {
564
                return '';
565
            }
566
        }
567
568
        return (string) iconv_substr($s, $start, $length, $encoding);
569
    }
570
571
    public static function mb_stripos($haystack, $needle, $offset = 0, $encoding = null)
572
    {
573
        $haystack = self::mb_convert_case($haystack, self::MB_CASE_FOLD, $encoding);
574
        $needle = self::mb_convert_case($needle, self::MB_CASE_FOLD, $encoding);
575
576
        return self::mb_strpos($haystack, $needle, $offset, $encoding);
577
    }
578
579
    public static function mb_stristr($haystack, $needle, $part = false, $encoding = null)
580
    {
581
        $pos = self::mb_stripos($haystack, $needle, 0, $encoding);
582
583
        return self::getSubpart($pos, $part, $haystack, $encoding);
584
    }
585
586
    public static function mb_strrchr($haystack, $needle, $part = false, $encoding = null)
587
    {
588
        $encoding = self::getEncoding($encoding);
589
        if ('CP850' === $encoding || 'ASCII' === $encoding) {
590
            return strrchr($haystack, $needle, $part);
0 ignored issues
show
Unused Code introduced by
The call to strrchr() has too many arguments starting with $part. ( Ignorable by Annotation )

If this is a false-positive, you can also ignore this issue in your code via the ignore-call  annotation

590
            return /** @scrutinizer ignore-call */ strrchr($haystack, $needle, $part);

This check compares calls to functions or methods with their respective definitions. If the call has more arguments than are defined, it raises an issue.

If a function is defined several times with a different number of parameters, the check may pick up the wrong definition and report false positives. One codebase where this has been known to happen is Wordpress. Please note the @ignore annotation hint above.

Loading history...
591
        }
592
        $needle = self::mb_substr($needle, 0, 1, $encoding);
593
        $pos = iconv_strrpos($haystack, $needle, $encoding);
594
595
        return self::getSubpart($pos, $part, $haystack, $encoding);
596
    }
597
598
    public static function mb_strrichr($haystack, $needle, $part = false, $encoding = null)
599
    {
600
        $needle = self::mb_substr($needle, 0, 1, $encoding);
601
        $pos = self::mb_strripos($haystack, $needle, $encoding);
602
603
        return self::getSubpart($pos, $part, $haystack, $encoding);
604
    }
605
606
    public static function mb_strripos($haystack, $needle, $offset = 0, $encoding = null)
607
    {
608
        $haystack = self::mb_convert_case($haystack, self::MB_CASE_FOLD, $encoding);
609
        $needle = self::mb_convert_case($needle, self::MB_CASE_FOLD, $encoding);
610
611
        return self::mb_strrpos($haystack, $needle, $offset, $encoding);
612
    }
613
614
    public static function mb_strstr($haystack, $needle, $part = false, $encoding = null)
0 ignored issues
show
Unused Code introduced by
The parameter $encoding is not used and could be removed. ( Ignorable by Annotation )

If this is a false-positive, you can also ignore this issue in your code via the ignore-unused  annotation

614
    public static function mb_strstr($haystack, $needle, $part = false, /** @scrutinizer ignore-unused */ $encoding = null)

This check looks for parameters that have been defined for a function or method, but which are not used in the method body.

Loading history...
615
    {
616
        $pos = strpos($haystack, $needle);
617
        if (false === $pos) {
618
            return false;
619
        }
620
        if ($part) {
621
            return substr($haystack, 0, $pos);
622
        }
623
624
        return substr($haystack, $pos);
625
    }
626
627
    public static function mb_get_info($type = 'all')
628
    {
629
        $info = array(
630
            'internal_encoding' => self::$internalEncoding,
631
            'http_output' => 'pass',
632
            'http_output_conv_mimetypes' => '^(text/|application/xhtml\+xml)',
633
            'func_overload' => 0,
634
            'func_overload_list' => 'no overload',
635
            'mail_charset' => 'UTF-8',
636
            'mail_header_encoding' => 'BASE64',
637
            'mail_body_encoding' => 'BASE64',
638
            'illegal_chars' => 0,
639
            'encoding_translation' => 'Off',
640
            'language' => self::$language,
641
            'detect_order' => self::$encodingList,
642
            'substitute_character' => 'none',
643
            'strict_detection' => 'Off',
644
        );
645
646
        if ('all' === $type) {
647
            return $info;
648
        }
649
        if (isset($info[$type])) {
650
            return $info[$type];
651
        }
652
653
        return false;
654
    }
655
656
    public static function mb_http_input($type = '')
0 ignored issues
show
Unused Code introduced by
The parameter $type is not used and could be removed. ( Ignorable by Annotation )

If this is a false-positive, you can also ignore this issue in your code via the ignore-unused  annotation

656
    public static function mb_http_input(/** @scrutinizer ignore-unused */ $type = '')

This check looks for parameters that have been defined for a function or method, but which are not used in the method body.

Loading history...
657
    {
658
        return false;
659
    }
660
661
    public static function mb_http_output($encoding = null)
662
    {
663
        return null !== $encoding ? 'pass' === $encoding : 'pass';
664
    }
665
666
    public static function mb_strwidth($s, $encoding = null)
667
    {
668
        $encoding = self::getEncoding($encoding);
669
670
        if ('UTF-8' !== $encoding) {
671
            $s = iconv($encoding, 'UTF-8//IGNORE', $s);
672
        }
673
674
        $s = preg_replace('/[\x{1100}-\x{115F}\x{2329}\x{232A}\x{2E80}-\x{303E}\x{3040}-\x{A4CF}\x{AC00}-\x{D7A3}\x{F900}-\x{FAFF}\x{FE10}-\x{FE19}\x{FE30}-\x{FE6F}\x{FF00}-\x{FF60}\x{FFE0}-\x{FFE6}\x{20000}-\x{2FFFD}\x{30000}-\x{3FFFD}]/u', '', $s, -1, $wide);
675
676
        return ($wide << 1) + iconv_strlen($s, 'UTF-8');
677
    }
678
679
    public static function mb_substr_count($haystack, $needle, $encoding = null)
0 ignored issues
show
Unused Code introduced by
The parameter $encoding is not used and could be removed. ( Ignorable by Annotation )

If this is a false-positive, you can also ignore this issue in your code via the ignore-unused  annotation

679
    public static function mb_substr_count($haystack, $needle, /** @scrutinizer ignore-unused */ $encoding = null)

This check looks for parameters that have been defined for a function or method, but which are not used in the method body.

Loading history...
680
    {
681
        return substr_count($haystack, $needle);
682
    }
683
684
    public static function mb_output_handler($contents, $status)
0 ignored issues
show
Unused Code introduced by
The parameter $status is not used and could be removed. ( Ignorable by Annotation )

If this is a false-positive, you can also ignore this issue in your code via the ignore-unused  annotation

684
    public static function mb_output_handler($contents, /** @scrutinizer ignore-unused */ $status)

This check looks for parameters that have been defined for a function or method, but which are not used in the method body.

Loading history...
685
    {
686
        return $contents;
687
    }
688
689
    public static function mb_chr($code, $encoding = null)
690
    {
691
        if (0x80 > $code %= 0x200000) {
692
            $s = \chr($code);
693
        } elseif (0x800 > $code) {
694
            $s = \chr(0xC0 | $code >> 6).\chr(0x80 | $code & 0x3F);
695
        } elseif (0x10000 > $code) {
696
            $s = \chr(0xE0 | $code >> 12).\chr(0x80 | $code >> 6 & 0x3F).\chr(0x80 | $code & 0x3F);
697
        } else {
698
            $s = \chr(0xF0 | $code >> 18).\chr(0x80 | $code >> 12 & 0x3F).\chr(0x80 | $code >> 6 & 0x3F).\chr(0x80 | $code & 0x3F);
699
        }
700
701
        if ('UTF-8' !== $encoding = self::getEncoding($encoding)) {
702
            $s = mb_convert_encoding($s, $encoding, 'UTF-8');
703
        }
704
705
        return $s;
706
    }
707
708
    public static function mb_ord($s, $encoding = null)
709
    {
710
        if ('UTF-8' !== $encoding = self::getEncoding($encoding)) {
711
            $s = mb_convert_encoding($s, 'UTF-8', $encoding);
712
        }
713
714
        if (1 === \strlen($s)) {
715
            return \ord($s);
716
        }
717
718
        $code = ($s = unpack('C*', substr($s, 0, 4))) ? $s[1] : 0;
719
        if (0xF0 <= $code) {
720
            return (($code - 0xF0) << 18) + (($s[2] - 0x80) << 12) + (($s[3] - 0x80) << 6) + $s[4] - 0x80;
721
        }
722
        if (0xE0 <= $code) {
723
            return (($code - 0xE0) << 12) + (($s[2] - 0x80) << 6) + $s[3] - 0x80;
724
        }
725
        if (0xC0 <= $code) {
726
            return (($code - 0xC0) << 6) + $s[2] - 0x80;
727
        }
728
729
        return $code;
730
    }
731
732
    private static function getSubpart($pos, $part, $haystack, $encoding)
733
    {
734
        if (false === $pos) {
735
            return false;
736
        }
737
        if ($part) {
738
            return self::mb_substr($haystack, 0, $pos, $encoding);
739
        }
740
741
        return self::mb_substr($haystack, $pos, null, $encoding);
742
    }
743
744
    private static function html_encoding_callback(array $m)
745
    {
746
        $i = 1;
747
        $entities = '';
748
        $m = unpack('C*', htmlentities($m[0], ENT_COMPAT, 'UTF-8'));
749
750
        while (isset($m[$i])) {
751
            if (0x80 > $m[$i]) {
752
                $entities .= \chr($m[$i++]);
753
                continue;
754
            }
755
            if (0xF0 <= $m[$i]) {
756
                $c = (($m[$i++] - 0xF0) << 18) + (($m[$i++] - 0x80) << 12) + (($m[$i++] - 0x80) << 6) + $m[$i++] - 0x80;
757
            } elseif (0xE0 <= $m[$i]) {
758
                $c = (($m[$i++] - 0xE0) << 12) + (($m[$i++] - 0x80) << 6) + $m[$i++] - 0x80;
759
            } else {
760
                $c = (($m[$i++] - 0xC0) << 6) + $m[$i++] - 0x80;
761
            }
762
763
            $entities .= '&#'.$c.';';
764
        }
765
766
        return $entities;
767
    }
768
769
    private static function title_case(array $s)
770
    {
771
        return self::mb_convert_case($s[1], MB_CASE_UPPER, 'UTF-8').self::mb_convert_case($s[2], MB_CASE_LOWER, 'UTF-8');
772
    }
773
774
    private static function getData($file)
775
    {
776
        if (file_exists($file = __DIR__.'/Resources/unidata/'.$file.'.php')) {
777
            return require $file;
778
        }
779
780
        return false;
781
    }
782
783
    private static function getEncoding($encoding)
784
    {
785
        if (null === $encoding) {
786
            return self::$internalEncoding;
787
        }
788
789
        $encoding = strtoupper($encoding);
790
791
        if ('8BIT' === $encoding || 'BINARY' === $encoding) {
792
            return 'CP850';
793
        }
794
        if ('UTF8' === $encoding) {
795
            return 'UTF-8';
796
        }
797
798
        return $encoding;
799
    }
800
}
801