Completed
Push — master ( 693e1e...7ea7b3 )
by smiley
03:06
created

QRMatrix::setQuietZone()   B

Complexity

Conditions 6
Paths 13

Size

Total Lines 26
Code Lines 15

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
cc 6
eloc 15
nc 13
nop 1
dl 0
loc 26
rs 8.439
c 0
b 0
f 0
1
<?php
2
/**
3
 * Class QRMatrix
4
 *
5
 * @filesource   QRMatrix.php
6
 * @created      15.11.2017
7
 * @package      chillerlan\QRCode\Data
8
 * @author       Smiley <[email protected]>
9
 * @copyright    2017 Smiley
10
 * @license      MIT
11
 */
12
13
namespace chillerlan\QRCode\Data;
14
15
use chillerlan\QRCode\QRCode;
16
17
/**
18
 * @link http://www.thonky.com/qr-code-tutorial/format-version-information
19
 */
20
class QRMatrix{
21
22
	const M_NULL       = 0x00;
23
	const M_DARKMODULE = 0x02;
24
	const M_DATA       = 0x04;
25
	const M_FINDER     = 0x06;
26
	const M_SEPARATOR  = 0x08;
27
	const M_ALIGNMENT  = 0x0a;
28
	const M_TIMING     = 0x0c;
29
	const M_FORMAT     = 0x0e;
30
	const M_VERSION    = 0x10;
31
	const M_QUIETZONE  = 0x12;
32
	const M_LOGO       = 0x14; // @todo
33
34
	const M_TEST       = 0xff;
35
36
	/**
37
	 * @link http://www.thonky.com/qr-code-tutorial/alignment-pattern-locations
38
	 */
39
	const alignmentPattern = [ 1 => // start at 1
40
		[],
41
		[6, 18],
42
		[6, 22],
43
		[6, 26],
44
		[6, 30],
45
		[6, 34],
46
		[6, 22, 38],
47
		[6, 24, 42],
48
		[6, 26, 46],
49
		[6, 28, 50],
50
		[6, 30, 54],
51
		[6, 32, 58],
52
		[6, 34, 62],
53
		[6, 26, 46, 66],
54
		[6, 26, 48, 70],
55
		[6, 26, 50, 74],
56
		[6, 30, 54, 78],
57
		[6, 30, 56, 82],
58
		[6, 30, 58, 86],
59
		[6, 34, 62, 90],
60
		[6, 28, 50, 72,  94],
61
		[6, 26, 50, 74,  98],
62
		[6, 30, 54, 78, 102],
63
		[6, 28, 54, 80, 106],
64
		[6, 32, 58, 84, 110],
65
		[6, 30, 58, 86, 114],
66
		[6, 34, 62, 90, 118],
67
		[6, 26, 50, 74,  98, 122],
68
		[6, 30, 54, 78, 102, 126],
69
		[6, 26, 52, 78, 104, 130],
70
		[6, 30, 56, 82, 108, 134],
71
		[6, 34, 60, 86, 112, 138],
72
		[6, 30, 58, 86, 114, 142],
73
		[6, 34, 62, 90, 118, 146],
74
		[6, 30, 54, 78, 102, 126, 150],
75
		[6, 24, 50, 76, 102, 128, 154],
76
		[6, 28, 54, 80, 106, 132, 158],
77
		[6, 32, 58, 84, 110, 136, 162],
78
		[6, 26, 54, 82, 110, 138, 166],
79
		[6, 30, 58, 86, 114, 142, 170],
80
	];
81
82
	/**
83
	 * @link http://www.thonky.com/qr-code-tutorial/format-version-tables
84
	 */
85
	const versionPattern = [ 7  => // no version pattern for QR Codes < 7
86
		0x07c94, 0x085bc, 0x09a99, 0x0a4d3, // 7-10
87
		0x0bbf6, 0x0c762, 0x0d847, 0x0e60d, 0x0f928, 0x10b78, 0x1145d, 0x12a17, 0x13532, 0x149a6,
88
		0x15683, 0x168c9, 0x177ec, 0x18ec4, 0x191e1, 0x1afab, 0x1b08e, 0x1cc1a, 0x1d33f, 0x1ed75,
89
		0x1f250, 0x209d5, 0x216f0, 0x228ba, 0x2379f, 0x24b0b, 0x2542e, 0x26a64, 0x27541, 0x28c69,
90
	];
91
92
	const formatPattern = [
93
		[0x77c4, 0x72f3, 0x7daa, 0x789d, 0x662f, 0x6318, 0x6c41, 0x6976], // L
94
		[0x5412, 0x5125, 0x5e7c, 0x5b4b, 0x45f9, 0x40ce, 0x4f97, 0x4aa0], // M
95
		[0x355f, 0x3068, 0x3f31, 0x3a06, 0x24b4, 0x2183, 0x2eda, 0x2bed], // Q
96
		[0x1689, 0x13be, 0x1ce7, 0x19d0, 0x0762, 0x0255, 0x0d0c, 0x083b], // H
97
	];
98
99
	/**
100
	 * @var int
101
	 */
102
	protected $version;
103
104
	/**
105
	 * @var int
106
	 */
107
	protected $eclevel;
108
109
	/**
110
	 * @var int
111
	 */
112
	protected $maskPattern = -1;
113
114
	/**
115
	 * @var int
116
	 */
117
	protected $moduleCount;
118
119
	/**
120
	 * @var mixed[]
121
	 */
122
	protected $matrix;
123
124
	/**
125
	 * QRMatrix constructor.
126
	 *
127
	 * @param int $version
128
	 * @param int $eclevel
129
	 *
130
	 * @throws \chillerlan\QRCode\Data\QRCodeDataException
131
	 */
132
	public function __construct(int $version, int $eclevel){
133
134
		if(!in_array($version, range(1, 40), true)){
135
			throw new QRCodeDataException('invalid QR Code version');
136
		}
137
138
		if(!array_key_exists($eclevel, QRCode::ECC_MODES)){
139
			throw new QRCodeDataException('invalid ecc level');
140
		}
141
142
		$this->version     = $version;
143
		$this->eclevel     = $eclevel;
144
		$this->moduleCount = $this->version * 4 + 17;
145
		$this->matrix      = array_fill(0, $this->moduleCount, array_fill(0, $this->moduleCount, self::M_NULL));
146
	}
147
148
	/**
149
	 * Returns the data array
150
	 *
151
	 * @return array
152
	 */
153
	public function matrix():array {
154
		return $this->matrix;
155
	}
156
157
	/**
158
	 * @return int
159
	 */
160
	public function version():int {
161
		return $this->version;
162
	}
163
164
	/**
165
	 * @return int
166
	 */
167
	public function eccLevel():int {
168
		return $this->eclevel;
169
	}
170
171
	/**
172
	 * @return int
173
	 */
174
	public function maskPattern():int {
175
		return $this->maskPattern;
176
	}
177
178
	/**
179
	 * Returns the absoulute size of the matrix, including quiet zone (after setting it).
180
	 *
181
	 * size = version * 4 + 17 [ + 2 * quietzone size]
182
	 *
183
	 * @return int
184
	 */
185
	public function size():int{
186
		return $this->moduleCount;
187
	}
188
189
	/**
190
	 * Returns the value of the module at position [$x, $y]
191
	 *
192
	 * @param int $x
193
	 * @param int $y
194
	 *
195
	 * @return int
196
	 */
197
	public function get(int $x, int $y):int{
198
		return $this->matrix[$y][$x];
199
	}
200
201
	/**
202
	 * Sets the $M_TYPE value for the module at position [$x, $y]
203
	 *
204
	 *   true  => $M_TYPE << 8
205
	 *   false => $M_TYPE
206
	 *
207
	 * @param int  $x
208
	 * @param int  $y
209
	 * @param int  $M_TYPE
210
	 * @param bool $value
211
	 *
212
	 * @return \chillerlan\QRCode\Data\QRMatrix
213
	 */
214
	public function set(int $x, int $y, bool $value, int $M_TYPE):QRMatrix{
215
		$this->matrix[$y][$x] = $M_TYPE << ($value ? 8 : 0);
216
217
		return $this;
218
	}
219
220
	/**
221
	 * Checks whether a module is true (dark) or false (light)
222
	 *
223
	 *   true  => $value >> 8 === $M_TYPE
224
	 *            $value >> 8 > 0
225
	 *
226
	 *   false => $value === $M_TYPE
227
	 *            $value >> 8 === 0
228
	 *
229
	 * @param int $x
230
	 * @param int $y
231
	 *
232
	 * @return bool
233
	 */
234
	public function check(int $x, int $y):bool{
235
		return $this->matrix[$y][$x] >> 8 > 0;
236
	}
237
238
239
	/**
240
	 * Sets the "dark module", that is always on the same position 1x1px away from the bottom left finder
241
	 *
242
	 * @return \chillerlan\QRCode\Data\QRMatrix
243
	 */
244
	public function setDarkModule():QRMatrix{
245
		$this->set(8, 4 * $this->version + 9, true, self::M_DARKMODULE);
246
247
		return $this;
248
	}
249
250
	/**
251
	 * Draws the 7x7 finder patterns in the corners top left/right and bottom left
252
	 *
253
	 * @return \chillerlan\QRCode\Data\QRMatrix
254
	 */
255
	public function setFinderPattern():QRMatrix{
256
257
		$pos = [
258
			[0, 0], // top left
259
			[$this->moduleCount - 7, 0], // bottom left
260
			[0, $this->moduleCount - 7], // top right
261
		];
262
263
		foreach($pos as $c){
264
			for($y = 0; $y < 7; $y++){
265
				for($x = 0; $x < 7; $x++){
266
					$this->set(
267
						$c[0] + $y,
268
						$c[1] + $x,
269
						!(($x > 0 && $x < 6 && ($y === 1 || $y === 5)) || ($y > 0 && $y < 6 && ($x === 1 || $x === 5))),
270
						self::M_FINDER
271
					);
272
				}
273
			}
274
		}
275
276
		return $this;
277
	}
278
279
	/**
280
	 * Draws the separator lines around the finder patterns
281
	 *
282
	 * @return \chillerlan\QRCode\Data\QRMatrix
283
	 */
284
	public function setSeparators():QRMatrix{
285
286
		$h = [
287
			[7, 0],
288
			[$this->moduleCount - 8, 0],
289
			[7, $this->moduleCount - 8],
290
		];
291
292
		$v = [
293
			[7, 7],
294
			[$this->moduleCount - 1, 7],
295
			[7, $this->moduleCount - 8],
296
		];
297
298
		$t = self::M_SEPARATOR;
299
300
		for($c = 0; $c < 3; $c++){
301
			for($i = 0; $i < 8; $i++){
302
				$this->set($h[$c][0]     , $h[$c][1] + $i, false, $t);
303
				$this->set($v[$c][0] - $i, $v[$c][1]     , false, $t);
304
			}
305
		}
306
307
		return $this;
308
	}
309
310
311
	/**
312
	 * Draws the 5x5 alignment patterns
313
	 *
314
	 * @return \chillerlan\QRCode\Data\QRMatrix
315
	 */
316
	public function setAlignmentPattern():QRMatrix{
317
		$pattern = self::alignmentPattern[$this->version];
318
319
		foreach($pattern as $y){
320
			foreach($pattern as $x){
321
322
				// skip existing patterns
323
				if($this->matrix[$y][$x] !== self::M_NULL){
324
					continue;
325
				}
326
327
				for($ry = -2; $ry <= 2; $ry++){
328
					for($rx = -2; $rx <= 2; $rx++){
329
						$v = ($ry === 0 && $rx === 0) || $ry === 2 || $ry === -2 || $rx === 2 || $rx === -2;
330
331
						$this->set($x + $rx, $y + $ry, $v, self::M_ALIGNMENT);
332
					}
333
				}
334
335
			}
336
		}
337
338
		return $this;
339
	}
340
341
342
	/**
343
	 * Draws the timing pattern (h/v checkered line between the finder patterns)
344
	 *
345
	 * @return \chillerlan\QRCode\Data\QRMatrix
346
	 */
347
	public function setTimingPattern():QRMatrix{
348
349
		foreach(range(8, $this->moduleCount - 8 - 1) as $i){
350
351
			if($this->matrix[6][$i] !== self::M_NULL || $this->matrix[$i][6] !== self::M_NULL){
352
				continue;
353
			}
354
355
			$v = $i % 2 === 0;
356
			$t = self::M_TIMING;
357
358
			$this->set($i, 6, $v, $t); // h
359
			$this->set(6, $i, $v, $t); // v
360
		}
361
362
		return $this;
363
	}
364
365
	/**
366
	 * Draws the version information, 2x 3x6 pixel
367
	 *
368
	 * @param bool|null  $test
369
	 *
370
	 * @return \chillerlan\QRCode\Data\QRMatrix
371
	 */
372
	public function setVersionNumber(bool $test = null):QRMatrix{
373
		$test = $test !== null ? $test : false;
374
375
		$bits = self::versionPattern[$this->version] ?? false;
376
377
		if($bits !== false){
378
379
			for($i = 0; $i < 18; $i++){
380
				$a = (int)floor($i / 3);
381
				$b = $i % 3 + $this->moduleCount - 8 - 3;
382
				$v = !$test && (($bits >> $i) & 1) === 1;
383
				$t = self::M_VERSION;
384
385
				$this->set($b, $a, $v, $t); // ne
386
				$this->set($a, $b, $v, $t); // sw
387
			}
388
389
		}
390
391
		return $this;
392
	}
393
394
	/**
395
	 * Draws the format info along the finder patterns
396
	 *
397
	 * @param int        $maskPattern
398
	 * @param bool|null  $test
399
	 *
400
	 * @return \chillerlan\QRCode\Data\QRMatrix
401
	 */
402
	public function setFormatInfo(int $maskPattern, bool $test = null):QRMatrix{
403
		$test = $test !== null ? $test : false;
404
		$bits = self::formatPattern[QRCode::ECC_MODES[$this->eclevel]][$maskPattern] ?? 0;
405
		$t    = self::M_FORMAT;
406
407
		for($i = 0; $i < 15; $i++){
408
			$v = !$test && (($bits >> $i) & 1) === 1;
409
410
			if($i < 6){
411
				$this->set(8, $i, $v, $t);
412
			}
413
			elseif($i < 8){
414
				$this->set(8, $i + 1, $v, $t);
415
			}
416
			else{
417
				$this->set(8, $this->moduleCount - 15 + $i, $v, $t);
418
			}
419
420
			if($i < 8){
421
				$this->set($this->moduleCount - $i - 1, 8, $v, $t);
422
			}
423
			elseif($i < 9){
424
				$this->set(15 - $i, 8, $v, $t);
425
			}
426
			else{
427
				$this->set(15 - $i - 1, 8, $v, $t);
428
			}
429
430
		}
431
432
		$this->set(8, $this->moduleCount - 8, !$test, $t);
433
434
		return $this;
435
	}
436
437
	/**
438
	 * Draws the "quiet zone" of $size around the matrix
439
	 *
440
	 * @param int|null $size
441
	 *
442
	 * @return \chillerlan\QRCode\Data\QRMatrix
443
	 */
444
	public function setQuietZone(int $size = null):QRMatrix{
445
446
		if($this->matrix[$this->moduleCount - 1][$this->moduleCount - 1] === self::M_NULL){
447
			throw new QRCodeDataException('use only after writing data');
448
		}
449
450
		$size = $size !== null ? max(0, min($size, floor($this->moduleCount / 2))) : 4;
451
		$t    = self::M_QUIETZONE;
452
453
		for($y = 0; $y < $this->moduleCount; $y++){
454
			for($i = 0; $i < $size; $i++){
455
				array_unshift($this->matrix[$y], $t);
456
				array_push($this->matrix[$y], $t);
457
			}
458
		}
459
460
		$this->moduleCount += ($size * 2);
461
		$r                 = array_fill(0, $this->moduleCount, $t);
462
463
		for($i = 0; $i < $size; $i++){
464
			array_unshift($this->matrix, $r);
465
			array_push($this->matrix, $r);
466
		}
467
468
		return $this;
469
	}
470
471
	/**
472
	 * Maps the binary $data array from QRDataInterface::maskECC() on the matrix, using $maskPattern
473
	 *
474
	 * @see \chillerlan\QRCode\Data\QRDataAbstract::maskECC()
475
	 *
476
	 * @param int[] $data
477
	 * @param int   $maskPattern
478
	 *
479
	 * @return \chillerlan\QRCode\Data\QRMatrix
480
	 */
481
	public function mapData(array $data, int $maskPattern):QRMatrix{
482
		$this->maskPattern = $maskPattern;
483
		$byteCount = count($data);
484
		$size      = $this->moduleCount - 1;
485
486
		for($i = $size, $y = $size, $inc = -1, $byteIndex = 0, $bitIndex  = 7; $i > 0; $i -= 2){
487
488
			if($i === 6){
489
				$i--;
490
			}
491
492
			while(true){
493
				for($c = 0; $c < 2; $c++){
494
					$x = $i - $c;
495
496
					if($this->matrix[$y][$x] === self::M_NULL){
497
						$v = false;
498
499
						if($byteIndex < $byteCount){
500
							$v = (($data[$byteIndex] >> $bitIndex) & 1) === 1;
501
						}
502
503
						if($this->getMask($x, $y, $maskPattern) === 0){
504
							$v = !$v;
505
						}
506
507
						$this->matrix[$y][$x] = self::M_DATA << ($v ? 8 : 0);
508
						$bitIndex--;
509
510
						if($bitIndex === -1){
511
							$byteIndex++;
512
							$bitIndex = 7;
513
						}
514
515
					}
516
				}
517
518
				$y += $inc;
519
520
				if($y < 0 || $this->moduleCount <= $y){
521
					$y   -=  $inc;
522
					$inc  = -$inc;
523
524
					break;
525
				}
526
527
			}
528
		}
529
530
		return $this;
531
	}
532
533
	/**
534
	 * @see \chillerlan\QRCode\QRMatrix::mapData()
535
	 *
536
	 * @internal
537
	 *
538
	 * @param int $x
539
	 * @param int $y
540
	 * @param int $maskPattern
541
	 *
542
	 * @return int
543
	 */
544
	protected function getMask(int $x, int $y, int $maskPattern):int {
545
		$a = $y + $x;
546
		$m = $y * $x;
547
548
		// i hate it so much
549
		switch($maskPattern){
550
			case 0: return $a % 2;
2 ignored issues
show
Coding Style introduced by
The case body in a switch statement must start on the line following the statement.

According to the PSR-2, the body of a case statement must start on the line immediately following the case statement.

switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;

}

To learn more about the PSR-2 coding standard, please refer to the PHP-Fig.

Loading history...
Coding Style introduced by
Terminating statement must be on a line by itself

As per the PSR-2 coding standard, the break (or other terminating) statement must be on a line of its own.

switch ($expr) {
     case "A":
         doSomething();
         break; //wrong
     case "B":
         doSomething();
         break; //right
     case "C:":
         doSomething();
         return true; //right
 }

To learn more about the PSR-2 coding standard, please refer to the PHP-Fig.

Loading history...
551
			case 1: return $y % 2;
2 ignored issues
show
Coding Style introduced by
The case body in a switch statement must start on the line following the statement.

According to the PSR-2, the body of a case statement must start on the line immediately following the case statement.

switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;

}

To learn more about the PSR-2 coding standard, please refer to the PHP-Fig.

Loading history...
Coding Style introduced by
Terminating statement must be on a line by itself

As per the PSR-2 coding standard, the break (or other terminating) statement must be on a line of its own.

switch ($expr) {
     case "A":
         doSomething();
         break; //wrong
     case "B":
         doSomething();
         break; //right
     case "C:":
         doSomething();
         return true; //right
 }

To learn more about the PSR-2 coding standard, please refer to the PHP-Fig.

Loading history...
552
			case 2: return $x % 3;
2 ignored issues
show
Coding Style introduced by
The case body in a switch statement must start on the line following the statement.

According to the PSR-2, the body of a case statement must start on the line immediately following the case statement.

switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;

}

To learn more about the PSR-2 coding standard, please refer to the PHP-Fig.

Loading history...
Coding Style introduced by
Terminating statement must be on a line by itself

As per the PSR-2 coding standard, the break (or other terminating) statement must be on a line of its own.

switch ($expr) {
     case "A":
         doSomething();
         break; //wrong
     case "B":
         doSomething();
         break; //right
     case "C:":
         doSomething();
         return true; //right
 }

To learn more about the PSR-2 coding standard, please refer to the PHP-Fig.

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553
			case 3: return $a % 3;
2 ignored issues
show
Coding Style introduced by
The case body in a switch statement must start on the line following the statement.

According to the PSR-2, the body of a case statement must start on the line immediately following the case statement.

switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;

}

To learn more about the PSR-2 coding standard, please refer to the PHP-Fig.

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Coding Style introduced by
Terminating statement must be on a line by itself

As per the PSR-2 coding standard, the break (or other terminating) statement must be on a line of its own.

switch ($expr) {
     case "A":
         doSomething();
         break; //wrong
     case "B":
         doSomething();
         break; //right
     case "C:":
         doSomething();
         return true; //right
 }

To learn more about the PSR-2 coding standard, please refer to the PHP-Fig.

Loading history...
554
			case 4: return (floor($y / 2) + floor($x / 3)) % 2;
2 ignored issues
show
Coding Style introduced by
The case body in a switch statement must start on the line following the statement.

According to the PSR-2, the body of a case statement must start on the line immediately following the case statement.

switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;

}

To learn more about the PSR-2 coding standard, please refer to the PHP-Fig.

Loading history...
Coding Style introduced by
Terminating statement must be on a line by itself

As per the PSR-2 coding standard, the break (or other terminating) statement must be on a line of its own.

switch ($expr) {
     case "A":
         doSomething();
         break; //wrong
     case "B":
         doSomething();
         break; //right
     case "C:":
         doSomething();
         return true; //right
 }

To learn more about the PSR-2 coding standard, please refer to the PHP-Fig.

Loading history...
555
			case 5: return $m % 2 + $m % 3;
2 ignored issues
show
Coding Style introduced by
The case body in a switch statement must start on the line following the statement.

According to the PSR-2, the body of a case statement must start on the line immediately following the case statement.

switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;

}

To learn more about the PSR-2 coding standard, please refer to the PHP-Fig.

Loading history...
Coding Style introduced by
Terminating statement must be on a line by itself

As per the PSR-2 coding standard, the break (or other terminating) statement must be on a line of its own.

switch ($expr) {
     case "A":
         doSomething();
         break; //wrong
     case "B":
         doSomething();
         break; //right
     case "C:":
         doSomething();
         return true; //right
 }

To learn more about the PSR-2 coding standard, please refer to the PHP-Fig.

Loading history...
556
			case 6: return ($m % 2 + $m % 3) % 2;
2 ignored issues
show
Coding Style introduced by
The case body in a switch statement must start on the line following the statement.

According to the PSR-2, the body of a case statement must start on the line immediately following the case statement.

switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;

}

To learn more about the PSR-2 coding standard, please refer to the PHP-Fig.

Loading history...
Coding Style introduced by
Terminating statement must be on a line by itself

As per the PSR-2 coding standard, the break (or other terminating) statement must be on a line of its own.

switch ($expr) {
     case "A":
         doSomething();
         break; //wrong
     case "B":
         doSomething();
         break; //right
     case "C:":
         doSomething();
         return true; //right
 }

To learn more about the PSR-2 coding standard, please refer to the PHP-Fig.

Loading history...
557
			case 7: return ($m % 3 + $a % 2) % 2;
2 ignored issues
show
Coding Style introduced by
The case body in a switch statement must start on the line following the statement.

According to the PSR-2, the body of a case statement must start on the line immediately following the case statement.

switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;

}

To learn more about the PSR-2 coding standard, please refer to the PHP-Fig.

Loading history...
Coding Style introduced by
Terminating statement must be on a line by itself

As per the PSR-2 coding standard, the break (or other terminating) statement must be on a line of its own.

switch ($expr) {
     case "A":
         doSomething();
         break; //wrong
     case "B":
         doSomething();
         break; //right
     case "C:":
         doSomething();
         return true; //right
 }

To learn more about the PSR-2 coding standard, please refer to the PHP-Fig.

Loading history...
558
		}
559
560
		throw new QRCodeDataException('invalid mask pattern');
561
	}
562
563
}
564