QRinput::convertData() - Code Metrics - majiameng/QrCode-php - Measure and Improve Code Quality continuously with Scrutinizer

QRinput::convertData() A
last analyzed 2024-12-12 08:51 UTC

↳ Parent: QRinput

Complexity

Conditions	6
Paths	10

Size

Total Lines	25
Code Lines	16

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	6
eloc	16
nc	10
nop	0
dl	0
loc	25
rs	9.1111
c	0
b	0
f	0

<?php
/*
* PHP QR Code encoder
*
* Input encoding class
*
* Based on libqrencode C library distributed under LGPL 2.1
* Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <[email protected]>
*
* PHP QR Code is distributed under LGPL 3
* Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
namespace tinymeng\code\Gateways\qrcode;

define('STRUCTURE_HEADER_BITS',  20);
define('MAX_STRUCTURED_SYMBOLS', 16);

class QRinput {

    public $items;
    
    private $version;
    private $level;
    
    //----------------------------------------------------------------------
    public function __construct($version = 0, $level = QR_ECLEVEL_L)
    {
        if ($version < 0 || $version > QRSPEC_VERSION_MAX || $level > QR_ECLEVEL_H) {
            throw new Exception('Invalid version no');

            return NULL;
function fx() {
    try {
        doSomething();
        return true;
    }
    catch (\Exception $e) {
        return false;
    }

    return false;
}
        }
        
        $this->version = $version;
        $this->level = $level;
    }
    
    //----------------------------------------------------------------------
    public function getVersion()
    {
        return $this->version;
    }
    
    //----------------------------------------------------------------------
    public function setVersion($version)
    {
        if($version < 0 || $version > QRSPEC_VERSION_MAX) {
            throw new Exception('Invalid version no');
            return -1;
function fx() {
    try {
        doSomething();
        return true;
    }
    catch (\Exception $e) {
        return false;
    }

    return false;
}
        }

        $this->version = $version;

        return 0;
    }
    
    //----------------------------------------------------------------------
    public function getErrorCorrectionLevel()
    {
        return $this->level;
    }

    //----------------------------------------------------------------------
    public function setErrorCorrectionLevel($level)
    {
        if($level > QR_ECLEVEL_H) {
            throw new Exception('Invalid ECLEVEL');
            return -1;
function fx() {
    try {
        doSomething();
        return true;
    }
    catch (\Exception $e) {
        return false;
    }

    return false;
}
        }

        $this->level = $level;

        return 0;
    }
    
    //----------------------------------------------------------------------
    public function appendEntry(QRinputItem $entry)
    {
        $this->items[] = $entry;
    }
    
    //----------------------------------------------------------------------
    public function append($mode, $size, $data)
    {
        try {
            $entry = new QRinputItem($mode, $size, $data);
            $this->items[] = $entry;
            return 0;
        } catch (Exception $e) {
            return -1;
        }
    }
    
    //----------------------------------------------------------------------
    
    public function insertStructuredAppendHeader($size, $index, $parity)
    {
        if( $size > MAX_STRUCTURED_SYMBOLS ) {
            throw new Exception('insertStructuredAppendHeader wrong size');
        }
        
        if( $index <= 0 || $index > MAX_STRUCTURED_SYMBOLS ) {
            throw new Exception('insertStructuredAppendHeader wrong index');
        }

        $buf = array($size, $index, $parity);

        
        try {
            $entry = new QRinputItem(QR_MODE_STRUCTURE, 3, buf);

            array_unshift($this->items, $entry);
            return 0;
        } catch (Exception $e) {
            return -1;
        }
    }

    //----------------------------------------------------------------------
    public function calcParity()
    {
        $parity = 0;
        
        foreach($this->items as $item) {
            if($item->mode != QR_MODE_STRUCTURE) {
                for($i=$item->size-1; $i>=0; $i--) {
                    $parity ^= $item->data[$i];
                }
            }
        }

        return $parity;
    }
    
    //----------------------------------------------------------------------
    public static function checkModeNum($size, $data)
    {
        for($i=0; $i<$size; $i++) {
            if((ord($data[$i]) < ord('0')) || (ord($data[$i]) > ord('9'))){
                return false;
            }
        }

        return true;
    }

    //----------------------------------------------------------------------
    public static function estimateBitsModeNum($size)
    {
        $w = (int)$size / 3;
        $bits = $w * 10;
        
        switch($size - $w * 3) {
            case 1:
                $bits += 4;
                break;
            case 2:
                $bits += 7;
                break;
            default:
                break;
        }

        return $bits;
    }
    
    //----------------------------------------------------------------------
    public static $anTable = array(
        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
        36, -1, -1, -1, 37, 38, -1, -1, -1, -1, 39, 40, -1, 41, 42, 43,
         0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 44, -1, -1, -1, -1, -1,
        -1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
        25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1,
        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
        -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
    );
    
    //----------------------------------------------------------------------
    public static function lookAnTable($c)
    {
        return (($c > 127)?-1:self::$anTable[$c]);
    }
    
    //----------------------------------------------------------------------
    public static function checkModeAn($size, $data)
    {
        for($i=0; $i<$size; $i++) {
            if (self::lookAnTable(ord($data[$i])) == -1) {
                return false;
            }
        }

        return true;
    }
    
    //----------------------------------------------------------------------
    public static function estimateBitsModeAn($size)
    {
        $w = (int)($size / 2);
        $bits = $w * 11;
        
        if($size & 1) {
            $bits += 6;
        }

        return $bits;
    }

    //----------------------------------------------------------------------
    public static function estimateBitsMode8($size)
    {
        return $size * 8;
    }
    
    //----------------------------------------------------------------------
    public function estimateBitsModeKanji($size)
    {
        return (int)(($size / 2) * 13);
    }
    
    //----------------------------------------------------------------------
    public static function checkModeKanji($size, $data)
    {
        if($size & 1)
            return false;

        for($i=0; $i<$size; $i+=2) {
            $val = (ord($data[$i]) << 8) | ord($data[$i+1]);
            if( $val < 0x8140 
            || ($val > 0x9ffc && $val < 0xe040) 
            || $val > 0xebbf) {
                return false;
            }
        }

        return true;
    }

    /***********************************************************************
     * Validation
     **********************************************************************/

    public static function check($mode, $size, $data)
    {
        if($size <= 0) 
            return false;

        switch($mode) {
            case QR_MODE_NUM:       return self::checkModeNum($size, $data);   break;
switch ($x) {
    case 1:
        return 'foo';
        break; // This break is not necessary and can be left off.
}
            case QR_MODE_AN:        return self::checkModeAn($size, $data);    break;
            case QR_MODE_KANJI:     return self::checkModeKanji($size, $data); break;
            case QR_MODE_8:         return true; break;
            case QR_MODE_STRUCTURE: return true; break;
            
            default:
                break;
        }

        return false;
    }
    
    
    //----------------------------------------------------------------------
    public function estimateBitStreamSize($version)
    {
        $bits = 0;

        foreach($this->items as $item) {
            $bits += $item->estimateBitStreamSizeOfEntry($version);
        }

        return $bits;
    }
    
    //----------------------------------------------------------------------
    public function estimateVersion()
    {
        $version = 0;
        $prev = 0;

        do {
            $prev = $version;
            $bits = $this->estimateBitStreamSize($prev);
            $version = QRspec::getMinimumVersion((int)(($bits + 7) / 8), $this->level);
            if ($version < 0) {
                return -1;
            }
        } while ($version > $prev);

        return $version;
    }
    
    //----------------------------------------------------------------------
    public static function lengthOfCode($mode, $version, $bits)
    {
        $payload = $bits - 4 - QRspec::lengthIndicator($mode, $version);
        switch($mode) {
            case QR_MODE_NUM:
                $chunks = (int)($payload / 10);
                $remain = $payload - $chunks * 10;
                $size = $chunks * 3;
                if($remain >= 7) {
                    $size += 2;
                } else if($remain >= 4) {
                    $size += 1;
                }
                break;
            case QR_MODE_AN:
                $chunks = (int)($payload / 11);
                $remain = $payload - $chunks * 11;
                $size = $chunks * 2;
                if($remain >= 6) 
                    $size++;
                break;
            case QR_MODE_8:
                $size = (int)($payload / 8);
                break;
            case QR_MODE_KANJI:
                $size = (int)(($payload / 13) * 2);
                break;
            case QR_MODE_STRUCTURE:
                $size = (int)($payload / 8);
                break;
            default:
                $size = 0;
                break;
        }
        
        $maxsize = QRspec::maximumWords($mode, $version);
        if($size < 0) $size = 0;
        if($size > $maxsize) $size = $maxsize;

        return $size;
    }
    
    //----------------------------------------------------------------------
    public function createBitStream()
    {
        $total = 0;

        foreach($this->items as $item) {
            $bits = $item->encodeBitStream($this->version);
            
            if($bits < 0) 
                return -1;
                
            $total += $bits;
        }

        return $total;
    }
    
    //----------------------------------------------------------------------
    public function convertData()
    {
        $ver = $this->estimateVersion();
        if($ver > $this->getVersion()) {
            $this->setVersion($ver);
        }

        for(;;) {
            $bits = $this->createBitStream();
            
            if($bits < 0) 
                return -1;
                
            $ver = QRspec::getMinimumVersion((int)(($bits + 7) / 8), $this->level);
            if($ver < 0) {
                throw new Exception('WRONG VERSION');
                return -1;
function fx() {
    try {
        doSomething();
        return true;
    }
    catch (\Exception $e) {
        return false;
    }

    return false;
}
            } else if($ver > $this->getVersion()) {
                $this->setVersion($ver);
            } else {
                break;
            }
        }

        return 0;
    }
    
    //----------------------------------------------------------------------
    public function appendPaddingBit(&$bstream)
    {
        $bits = $bstream->size();
        $maxwords = QRspec::getDataLength($this->version, $this->level);
        $maxbits = $maxwords * 8;

        if ($maxbits == $bits) {
            return 0;
        }

        if ($maxbits - $bits < 5) {
            return $bstream->appendNum($maxbits - $bits, 0);
        }

        $bits += 4;
        $words = (int)(($bits + 7) / 8);

        $padding = new QRbitstream();
        $ret = $padding->appendNum($words * 8 - $bits + 4, 0);
        
        if($ret < 0) 
            return $ret;

        $padlen = $maxwords - $words;
        
        if($padlen > 0) {
            
            $padbuf = array();
            for($i=0; $i<$padlen; $i++) {
                $padbuf[$i] = ($i&1)?0x11:0xec;
            }
            
            $ret = $padding->appendBytes($padlen, $padbuf);
            
            if($ret < 0)
                return $ret;
            
        }

        $ret = $bstream->append($padding);
        
        return $ret;
    }

    //----------------------------------------------------------------------
    public function mergeBitStream()
    {
        if($this->convertData() < 0) {
            return null;
        }

        $bstream = new QRbitstream();
        
        foreach($this->items as $item) {
            $ret = $bstream->append($item->bstream);
            if($ret < 0) {
                return null;
            }
        }

        return $bstream;
    }

    //----------------------------------------------------------------------
    public function getBitStream()
    {

        $bstream = $this->mergeBitStream();
        
        if($bstream == null) {
            return null;
        }
        
        $ret = $this->appendPaddingBit($bstream);
        if($ret < 0) {
            return null;
        }

        return $bstream;
    }
    
    //----------------------------------------------------------------------
    public function getByteStream()
    {
        $bstream = $this->getBitStream();
class A
{
    function getObject()
    {
        return null;
    }

}

$a = new A();
$object = $a->getObject();
        if($bstream == null) {

            return null;
        }
        
        return $bstream->toByte();
    }
}
    
    


1			<?php
2			/*
3			* PHP QR Code encoder
4			*
5			* Input encoding class
6			*
7			* Based on libqrencode C library distributed under LGPL 2.1
8			* Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <[email protected]>
9			*
10			* PHP QR Code is distributed under LGPL 3
11			* Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>
12			*
13			* This library is free software; you can redistribute it and/or
14			* modify it under the terms of the GNU Lesser General Public
15			* License as published by the Free Software Foundation; either
16			* version 3 of the License, or any later version.
17			*
18			* This library is distributed in the hope that it will be useful,
19			* but WITHOUT ANY WARRANTY; without even the implied warranty of
20			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
21			* Lesser General Public License for more details.
22			*
23			* You should have received a copy of the GNU Lesser General Public
24			* License along with this library; if not, write to the Free Software
25			* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
26			*/
27			namespace tinymeng\code\Gateways\qrcode;
28
29			define('STRUCTURE_HEADER_BITS', 20);
30			define('MAX_STRUCTURED_SYMBOLS', 16);
31
32			class QRinput {
33
34			public $items;
35
36			private $version;
37			private $level;
38
39			//----------------------------------------------------------------------
40			public function __construct($version = 0, $level = QR_ECLEVEL_L)
41			{
42			if ($version < 0 \|\| $version > QRSPEC_VERSION_MAX \|\| $level > QR_ECLEVEL_H) {
43			throw new Exception('Invalid version no');
			0 ignored issues – show Bug introduced 2024-12-12 08:42 UTC by Report Bug Copy Issue Report The type `tinymeng\code\Gateways\qrcode\Exception` was not found. Did you mean `Exception`? If so, make sure to prefix the type with `\`. Loading history...
44			return NULL;
			0 ignored issues – show Unused Code introduced 2024-12-12 08:42 UTC by Report Bug Copy Issue Report `return NULL` is not reachable. This check looks for unreachable code. It uses sophisticated control flow analysis techniques to find statements which will never be executed. Unreachable code is most often the result of `return`, `die` or `exit` statements that have been added for debug purposes. function fx() { try { doSomething(); return true; } catch (\Exception $e) { return false; } return false; } In the above example, the last `return false` will never be executed, because a return statement has already been met in every possible execution path. Loading history...
45			}
46
47			$this->version = $version;
48			$this->level = $level;
49			}
50
51			//----------------------------------------------------------------------
52			public function getVersion()
53			{
54			return $this->version;
55			}
56
57			//----------------------------------------------------------------------
58			public function setVersion($version)
59			{
60			if($version < 0 \|\| $version > QRSPEC_VERSION_MAX) {
61			throw new Exception('Invalid version no');
62			return -1;
			0 ignored issues – show Unused Code introduced 2024-12-12 08:42 UTC by Report Bug Copy Issue Report `return -1` is not reachable. This check looks for unreachable code. It uses sophisticated control flow analysis techniques to find statements which will never be executed. Unreachable code is most often the result of `return`, `die` or `exit` statements that have been added for debug purposes. function fx() { try { doSomething(); return true; } catch (\Exception $e) { return false; } return false; } In the above example, the last `return false` will never be executed, because a return statement has already been met in every possible execution path. Loading history...
63			}
64
65			$this->version = $version;
66
67			return 0;
68			}
69
70			//----------------------------------------------------------------------
71			public function getErrorCorrectionLevel()
72			{
73			return $this->level;
74			}
75
76			//----------------------------------------------------------------------
77			public function setErrorCorrectionLevel($level)
78			{
79			if($level > QR_ECLEVEL_H) {
80			throw new Exception('Invalid ECLEVEL');
81			return -1;
			0 ignored issues – show Unused Code introduced 2024-12-12 08:42 UTC by Report Bug Copy Issue Report `return -1` is not reachable. This check looks for unreachable code. It uses sophisticated control flow analysis techniques to find statements which will never be executed. Unreachable code is most often the result of `return`, `die` or `exit` statements that have been added for debug purposes. function fx() { try { doSomething(); return true; } catch (\Exception $e) { return false; } return false; } In the above example, the last `return false` will never be executed, because a return statement has already been met in every possible execution path. Loading history...
82			}
83
84			$this->level = $level;
85
86			return 0;
87			}
88
89			//----------------------------------------------------------------------
90			public function appendEntry(QRinputItem $entry)
91			{
92			$this->items[] = $entry;
93			}
94
95			//----------------------------------------------------------------------
96			public function append($mode, $size, $data)
97			{
98			try {
99			$entry = new QRinputItem($mode, $size, $data);
100			$this->items[] = $entry;
101			return 0;
102			} catch (Exception $e) {
103			return -1;
104			}
105			}
106
107			//----------------------------------------------------------------------
108
109			public function insertStructuredAppendHeader($size, $index, $parity)
110			{
111			if( $size > MAX_STRUCTURED_SYMBOLS ) {
112			throw new Exception('insertStructuredAppendHeader wrong size');
113			}
114
115			if( $index <= 0 \|\| $index > MAX_STRUCTURED_SYMBOLS ) {
116			throw new Exception('insertStructuredAppendHeader wrong index');
117			}
118
119			$buf = array($size, $index, $parity);
			0 ignored issues – show Unused Code introduced 2024-12-12 08:42 UTC by Report Bug Copy Issue Report The assignment to `$buf` is dead and can be removed. Loading history...
120
121			try {
122			$entry = new QRinputItem(QR_MODE_STRUCTURE, 3, buf);
			0 ignored issues – show Bug introduced 2024-12-12 08:42 UTC by Report Bug Copy Issue Report The constant `tinymeng\code\Gateways\qrcode\buf` was not found. Maybe you did not declare it correctly or list all dependencies? Loading history...
123			array_unshift($this->items, $entry);
124			return 0;
125			} catch (Exception $e) {
126			return -1;
127			}
128			}
129
130			//----------------------------------------------------------------------
131			public function calcParity()
132			{
133			$parity = 0;
134
135			foreach($this->items as $item) {
136			if($item->mode != QR_MODE_STRUCTURE) {
137			for($i=$item->size-1; $i>=0; $i--) {
138			$parity ^= $item->data[$i];
139			}
140			}
141			}
142
143			return $parity;
144			}
145
146			//----------------------------------------------------------------------
147			public static function checkModeNum($size, $data)
148			{
149			for($i=0; $i<$size; $i++) {
150			if((ord($data[$i]) < ord('0')) \|\| (ord($data[$i]) > ord('9'))){
151			return false;
152			}
153			}
154
155			return true;
156			}
157
158			//----------------------------------------------------------------------
159			public static function estimateBitsModeNum($size)
160			{
161			$w = (int)$size / 3;
162			$bits = $w * 10;
163
164			switch($size - $w * 3) {
165			case 1:
166			$bits += 4;
167			break;
168			case 2:
169			$bits += 7;
170			break;
171			default:
172			break;
173			}
174
175			return $bits;
176			}
177
178			//----------------------------------------------------------------------
179			public static $anTable = array(
180			-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
181			-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
182			36, -1, -1, -1, 37, 38, -1, -1, -1, -1, 39, 40, -1, 41, 42, 43,
183			0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 44, -1, -1, -1, -1, -1,
184			-1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
185			25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1,
186			-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
187			-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
188			);
189
190			//----------------------------------------------------------------------
191			public static function lookAnTable($c)
192			{
193			return (($c > 127)?-1:self::$anTable[$c]);
194			}
195
196			//----------------------------------------------------------------------
197			public static function checkModeAn($size, $data)
198			{
199			for($i=0; $i<$size; $i++) {
200			if (self::lookAnTable(ord($data[$i])) == -1) {
201			return false;
202			}
203			}
204
205			return true;
206			}
207
208			//----------------------------------------------------------------------
209			public static function estimateBitsModeAn($size)
210			{
211			$w = (int)($size / 2);
212			$bits = $w * 11;
213
214			if($size & 1) {
215			$bits += 6;
216			}
217
218			return $bits;
219			}
220
221			//----------------------------------------------------------------------
222			public static function estimateBitsMode8($size)
223			{
224			return $size * 8;
225			}
226
227			//----------------------------------------------------------------------
228			public function estimateBitsModeKanji($size)
229			{
230			return (int)(($size / 2) * 13);
231			}
232
233			//----------------------------------------------------------------------
234			public static function checkModeKanji($size, $data)
235			{
236			if($size & 1)
237			return false;
238
239			for($i=0; $i<$size; $i+=2) {
240			$val = (ord($data[$i]) << 8) \| ord($data[$i+1]);
241			if( $val < 0x8140
242			\|\| ($val > 0x9ffc && $val < 0xe040)
243			\|\| $val > 0xebbf) {
244			return false;
245			}
246			}
247
248			return true;
249			}
250
251			/***********************************************************************
252			* Validation
253			**********************************************************************/
254
255			public static function check($mode, $size, $data)
256			{
257			if($size <= 0)
258			return false;
259
260			switch($mode) {
261			case QR_MODE_NUM: return self::checkModeNum($size, $data); break;
			0 ignored issues – show Unused Code introduced 2024-12-12 08:42 UTC by Report Bug Copy Issue Report `break` is not strictly necessary here and could be removed. The `break` statement is not necessary if it is preceded for example by a `return` statement: switch ($x) { case 1: return 'foo'; break; // This break is not necessary and can be left off. } If you would like to keep this construct to be consistent with other `case` statements, you can safely mark this issue as a false-positive. Loading history...
262			case QR_MODE_AN: return self::checkModeAn($size, $data); break;
263			case QR_MODE_KANJI: return self::checkModeKanji($size, $data); break;
264			case QR_MODE_8: return true; break;
265			case QR_MODE_STRUCTURE: return true; break;
266
267			default:
268			break;
269			}
270
271			return false;
272			}
273
274
275			//----------------------------------------------------------------------
276			public function estimateBitStreamSize($version)
277			{
278			$bits = 0;
279
280			foreach($this->items as $item) {
281			$bits += $item->estimateBitStreamSizeOfEntry($version);
282			}
283
284			return $bits;
285			}
286
287			//----------------------------------------------------------------------
288			public function estimateVersion()
289			{
290			$version = 0;
291			$prev = 0;
			0 ignored issues – show Unused Code introduced 2024-12-12 08:42 UTC by Report Bug Copy Issue Report The assignment to `$prev` is dead and can be removed. Loading history...
292			do {
293			$prev = $version;
294			$bits = $this->estimateBitStreamSize($prev);
295			$version = QRspec::getMinimumVersion((int)(($bits + 7) / 8), $this->level);
296			if ($version < 0) {
297			return -1;
298			}
299			} while ($version > $prev);
300
301			return $version;
302			}
303
304			//----------------------------------------------------------------------
305			public static function lengthOfCode($mode, $version, $bits)
306			{
307			$payload = $bits - 4 - QRspec::lengthIndicator($mode, $version);
308			switch($mode) {
309			case QR_MODE_NUM:
310			$chunks = (int)($payload / 10);
311			$remain = $payload - $chunks * 10;
312			$size = $chunks * 3;
313			if($remain >= 7) {
314			$size += 2;
315			} else if($remain >= 4) {
316			$size += 1;
317			}
318			break;
319			case QR_MODE_AN:
320			$chunks = (int)($payload / 11);
321			$remain = $payload - $chunks * 11;
322			$size = $chunks * 2;
323			if($remain >= 6)
324			$size++;
325			break;
326			case QR_MODE_8:
327			$size = (int)($payload / 8);
328			break;
329			case QR_MODE_KANJI:
330			$size = (int)(($payload / 13) * 2);
331			break;
332			case QR_MODE_STRUCTURE:
333			$size = (int)($payload / 8);
334			break;
335			default:
336			$size = 0;
337			break;
338			}
339
340			$maxsize = QRspec::maximumWords($mode, $version);
341			if($size < 0) $size = 0;
342			if($size > $maxsize) $size = $maxsize;
343
344			return $size;
345			}
346
347			//----------------------------------------------------------------------
348			public function createBitStream()
349			{
350			$total = 0;
351
352			foreach($this->items as $item) {
353			$bits = $item->encodeBitStream($this->version);
354
355			if($bits < 0)
356			return -1;
357
358			$total += $bits;
359			}
360
361			return $total;
362			}
363
364			//----------------------------------------------------------------------
365			public function convertData()
366			{
367			$ver = $this->estimateVersion();
368			if($ver > $this->getVersion()) {
369			$this->setVersion($ver);
370			}
371
372			for(;;) {
373			$bits = $this->createBitStream();
374
375			if($bits < 0)
376			return -1;
377
378			$ver = QRspec::getMinimumVersion((int)(($bits + 7) / 8), $this->level);
379			if($ver < 0) {
380			throw new Exception('WRONG VERSION');
381			return -1;
			0 ignored issues – show Unused Code introduced 2024-12-12 08:42 UTC by Report Bug Copy Issue Report `return -1` is not reachable. This check looks for unreachable code. It uses sophisticated control flow analysis techniques to find statements which will never be executed. Unreachable code is most often the result of `return`, `die` or `exit` statements that have been added for debug purposes. function fx() { try { doSomething(); return true; } catch (\Exception $e) { return false; } return false; } In the above example, the last `return false` will never be executed, because a return statement has already been met in every possible execution path. Loading history...
382			} else if($ver > $this->getVersion()) {
383			$this->setVersion($ver);
384			} else {
385			break;
386			}
387			}
388
389			return 0;
390			}
391
392			//----------------------------------------------------------------------
393			public function appendPaddingBit(&$bstream)
394			{
395			$bits = $bstream->size();
396			$maxwords = QRspec::getDataLength($this->version, $this->level);
397			$maxbits = $maxwords * 8;
398
399			if ($maxbits == $bits) {
400			return 0;
401			}
402
403			if ($maxbits - $bits < 5) {
404			return $bstream->appendNum($maxbits - $bits, 0);
405			}
406
407			$bits += 4;
408			$words = (int)(($bits + 7) / 8);
409
410			$padding = new QRbitstream();
411			$ret = $padding->appendNum($words * 8 - $bits + 4, 0);
412
413			if($ret < 0)
414			return $ret;
415
416			$padlen = $maxwords - $words;
417
418			if($padlen > 0) {
419
420			$padbuf = array();
421			for($i=0; $i<$padlen; $i++) {
422			$padbuf[$i] = ($i&1)?0x11:0xec;
423			}
424
425			$ret = $padding->appendBytes($padlen, $padbuf);
426
427			if($ret < 0)
428			return $ret;
429
430			}
431
432			$ret = $bstream->append($padding);
433
434			return $ret;
435			}
436
437			//----------------------------------------------------------------------
438			public function mergeBitStream()
439			{
440			if($this->convertData() < 0) {
441			return null;
442			}
443
444			$bstream = new QRbitstream();
445
446			foreach($this->items as $item) {
447			$ret = $bstream->append($item->bstream);
448			if($ret < 0) {
449			return null;
450			}
451			}
452
453			return $bstream;
454			}
455
456			//----------------------------------------------------------------------
457			public function getBitStream()
458			{
459
460			$bstream = $this->mergeBitStream();
461
462			if($bstream == null) {
463			return null;
464			}
465
466			$ret = $this->appendPaddingBit($bstream);
467			if($ret < 0) {
468			return null;
469			}
470
471			return $bstream;
472			}
473
474			//----------------------------------------------------------------------
475			public function getByteStream()
476			{
477			$bstream = $this->getBitStream();
			0 ignored issues – show Bug introduced 2024-12-12 08:42 UTC by Report Bug Copy Issue Report Are you sure the assignment to `$bstream` is correct as `$this->getBitStream()` targeting `tinymeng\code\Gateways\q...QRinput::getBitStream()` seems to always return null. This check looks for function or method calls that always return null and whose return value is assigned to a variable. class A { function getObject() { return null; } } $a = new A(); $object = $a->getObject(); The method `getObject()` can return nothing but null, so it makes no sense to assign that value to a variable. The reason is most likely that a function or method is imcomplete or has been reduced for debug purposes. Loading history...
478			if($bstream == null) {
			0 ignored issues – show introduced 2024-12-12 08:42 UTC by Report Bug Copy Issue Report The condition `$bstream == null` is always `true`. Loading history...
479			return null;
480			}
481
482			return $bstream->toByte();
483			}
484			}
485
486
487

majiameng / QrCode-php

QRinput::convertData() A last analyzed 2024-12-12 08:51 UTC

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QRinput::convertData() A
last analyzed 2024-12-12 08:51 UTC