|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace IlluminateAgnostic\Str\Support; |
|
4
|
|
|
|
|
5
|
|
|
use ArrayIterator; |
|
6
|
|
|
use Closure; |
|
7
|
|
|
use IlluminateAgnostic\Str\Support\Traits\EnumeratesValues; |
|
8
|
|
|
use IlluminateAgnostic\Str\Support\Traits\Macroable; |
|
9
|
|
|
use IteratorAggregate; |
|
10
|
|
|
use stdClass; |
|
11
|
|
|
|
|
12
|
|
|
class LazyCollection implements Enumerable |
|
13
|
|
|
{ |
|
14
|
|
|
use EnumeratesValues, Macroable; |
|
15
|
|
|
|
|
16
|
|
|
/** |
|
17
|
|
|
* The source from which to generate items. |
|
18
|
|
|
* |
|
19
|
|
|
* @var callable|static |
|
20
|
|
|
*/ |
|
21
|
|
|
public $source; |
|
22
|
|
|
|
|
23
|
|
|
/** |
|
24
|
|
|
* Create a new lazy collection instance. |
|
25
|
|
|
* |
|
26
|
|
|
* @param mixed $source |
|
27
|
|
|
* @return void |
|
|
|
|
|
|
28
|
|
|
*/ |
|
29
|
231 |
|
public function __construct($source = null) |
|
30
|
|
|
{ |
|
31
|
231 |
|
if ($source instanceof Closure || $source instanceof self) { |
|
32
|
160 |
|
$this->source = $source; |
|
33
|
231 |
|
} elseif (is_null($source)) { |
|
34
|
26 |
|
$this->source = static::empty(); |
|
35
|
|
|
} else { |
|
36
|
231 |
|
$this->source = $this->getArrayableItems($source); |
|
37
|
|
|
} |
|
38
|
231 |
|
} |
|
39
|
|
|
|
|
40
|
|
|
/** |
|
41
|
|
|
* Create a new instance with no items. |
|
42
|
|
|
* |
|
43
|
|
|
* @return static |
|
44
|
|
|
*/ |
|
45
|
28 |
|
public static function empty() |
|
46
|
|
|
{ |
|
47
|
28 |
|
return new static([]); |
|
48
|
|
|
} |
|
49
|
|
|
|
|
50
|
|
|
/** |
|
51
|
|
|
* Create a new instance by invoking the callback a given amount of times. |
|
52
|
|
|
* |
|
53
|
|
|
* @param int $number |
|
54
|
|
|
* @param callable $callback |
|
55
|
|
|
* @return static |
|
56
|
|
|
*/ |
|
57
|
1 |
|
public static function times($number, callable $callback = null) |
|
58
|
|
|
{ |
|
59
|
1 |
|
if ($number < 1) { |
|
60
|
1 |
|
return new static; |
|
61
|
|
|
} |
|
62
|
|
|
|
|
63
|
|
|
$instance = new static(function () use ($number) { |
|
64
|
1 |
|
for ($current = 1; $current <= $number; $current++) { |
|
65
|
1 |
|
yield $current; |
|
66
|
|
|
} |
|
67
|
1 |
|
}); |
|
68
|
|
|
|
|
69
|
1 |
|
return is_null($callback) ? $instance : $instance->map($callback); |
|
70
|
|
|
} |
|
71
|
|
|
|
|
72
|
|
|
/** |
|
73
|
|
|
* Create an enumerable with the given range. |
|
74
|
|
|
* |
|
75
|
|
|
* @param int $from |
|
76
|
|
|
* @param int $to |
|
77
|
|
|
* @return static |
|
78
|
|
|
*/ |
|
79
|
|
|
public static function range($from, $to) |
|
80
|
|
|
{ |
|
81
|
|
|
return new static(function () use ($from, $to) { |
|
82
|
|
|
for (; $from <= $to; $from++) { |
|
83
|
|
|
yield $from; |
|
84
|
|
|
} |
|
85
|
|
|
}); |
|
86
|
|
|
} |
|
87
|
|
|
|
|
88
|
|
|
/** |
|
89
|
|
|
* Get all items in the enumerable. |
|
90
|
|
|
* |
|
91
|
|
|
* @return array |
|
92
|
|
|
*/ |
|
93
|
190 |
|
public function all() |
|
94
|
|
|
{ |
|
95
|
190 |
|
if (is_array($this->source)) { |
|
96
|
110 |
|
return $this->source; |
|
97
|
|
|
} |
|
98
|
|
|
|
|
99
|
158 |
|
return iterator_to_array($this->getIterator()); |
|
100
|
|
|
} |
|
101
|
|
|
|
|
102
|
|
|
/** |
|
103
|
|
|
* Get the average value of a given key. |
|
104
|
|
|
* |
|
105
|
|
|
* @param callable|string|null $callback |
|
106
|
|
|
* @return mixed |
|
107
|
|
|
*/ |
|
108
|
1 |
|
public function avg($callback = null) |
|
109
|
|
|
{ |
|
110
|
1 |
|
return $this->collect()->avg($callback); |
|
111
|
|
|
} |
|
112
|
|
|
|
|
113
|
|
|
/** |
|
114
|
|
|
* Get the median of a given key. |
|
115
|
|
|
* |
|
116
|
|
|
* @param string|array|null $key |
|
117
|
|
|
* @return mixed |
|
118
|
|
|
*/ |
|
119
|
6 |
|
public function median($key = null) |
|
120
|
|
|
{ |
|
121
|
6 |
|
return $this->collect()->median($key); |
|
122
|
|
|
} |
|
123
|
|
|
|
|
124
|
|
|
/** |
|
125
|
|
|
* Get the mode of a given key. |
|
126
|
|
|
* |
|
127
|
|
|
* @param string|array|null $key |
|
128
|
|
|
* @return array|null |
|
129
|
|
|
*/ |
|
130
|
4 |
|
public function mode($key = null) |
|
131
|
|
|
{ |
|
132
|
4 |
|
return $this->collect()->mode($key); |
|
133
|
|
|
} |
|
134
|
|
|
|
|
135
|
|
|
/** |
|
136
|
|
|
* Collapse the collection of items into a single array. |
|
137
|
|
|
* |
|
138
|
|
|
* @return static |
|
139
|
|
|
*/ |
|
140
|
3 |
|
public function collapse() |
|
141
|
|
|
{ |
|
142
|
|
|
return new static(function () { |
|
143
|
3 |
|
foreach ($this as $values) { |
|
144
|
3 |
|
if (is_array($values) || $values instanceof Enumerable) { |
|
145
|
3 |
|
foreach ($values as $value) { |
|
146
|
3 |
|
yield $value; |
|
147
|
|
|
} |
|
148
|
|
|
} |
|
149
|
|
|
} |
|
150
|
3 |
|
}); |
|
151
|
|
|
} |
|
152
|
|
|
|
|
153
|
|
|
/** |
|
154
|
|
|
* Determine if an item exists in the enumerable. |
|
155
|
|
|
* |
|
156
|
|
|
* @param mixed $key |
|
157
|
|
|
* @param mixed $operator |
|
158
|
|
|
* @param mixed $value |
|
159
|
|
|
* @return bool |
|
160
|
|
|
*/ |
|
161
|
4 |
|
public function contains($key, $operator = null, $value = null) |
|
162
|
|
|
{ |
|
163
|
4 |
|
if (func_num_args() === 1 && $this->useAsCallable($key)) { |
|
164
|
4 |
|
$placeholder = new stdClass; |
|
165
|
|
|
|
|
166
|
4 |
|
return $this->first($key, $placeholder) !== $placeholder; |
|
167
|
|
|
} |
|
168
|
|
|
|
|
169
|
3 |
|
if (func_num_args() === 1) { |
|
170
|
2 |
|
$needle = $key; |
|
171
|
|
|
|
|
172
|
2 |
|
foreach ($this as $value) { |
|
173
|
2 |
|
if ($value == $needle) { |
|
174
|
2 |
|
return true; |
|
175
|
|
|
} |
|
176
|
|
|
} |
|
177
|
|
|
|
|
178
|
2 |
|
return false; |
|
179
|
|
|
} |
|
180
|
|
|
|
|
181
|
3 |
|
return $this->contains($this->operatorForWhere(...func_get_args())); |
|
182
|
|
|
} |
|
183
|
|
|
|
|
184
|
|
|
/** |
|
185
|
|
|
* Cross join the given iterables, returning all possible permutations. |
|
186
|
|
|
* |
|
187
|
|
|
* @param array ...$arrays |
|
188
|
|
|
* @return static |
|
189
|
|
|
*/ |
|
190
|
1 |
|
public function crossJoin(...$arrays) |
|
191
|
|
|
{ |
|
192
|
1 |
|
return $this->passthru('crossJoin', func_get_args()); |
|
193
|
|
|
} |
|
194
|
|
|
|
|
195
|
|
|
/** |
|
196
|
|
|
* Get the items that are not present in the given items. |
|
197
|
|
|
* |
|
198
|
|
|
* @param mixed $items |
|
199
|
|
|
* @return static |
|
200
|
|
|
*/ |
|
201
|
3 |
|
public function diff($items) |
|
202
|
|
|
{ |
|
203
|
3 |
|
return $this->passthru('diff', func_get_args()); |
|
204
|
|
|
} |
|
205
|
|
|
|
|
206
|
|
|
/** |
|
207
|
|
|
* Get the items that are not present in the given items, using the callback. |
|
208
|
|
|
* |
|
209
|
|
|
* @param mixed $items |
|
210
|
|
|
* @param callable $callback |
|
211
|
|
|
* @return static |
|
212
|
|
|
*/ |
|
213
|
2 |
|
public function diffUsing($items, callable $callback) |
|
214
|
|
|
{ |
|
215
|
2 |
|
return $this->passthru('diffUsing', func_get_args()); |
|
216
|
|
|
} |
|
217
|
|
|
|
|
218
|
|
|
/** |
|
219
|
|
|
* Get the items whose keys and values are not present in the given items. |
|
220
|
|
|
* |
|
221
|
|
|
* @param mixed $items |
|
222
|
|
|
* @return static |
|
223
|
|
|
*/ |
|
224
|
2 |
|
public function diffAssoc($items) |
|
225
|
|
|
{ |
|
226
|
2 |
|
return $this->passthru('diffAssoc', func_get_args()); |
|
227
|
|
|
} |
|
228
|
|
|
|
|
229
|
|
|
/** |
|
230
|
|
|
* Get the items whose keys and values are not present in the given items. |
|
231
|
|
|
* |
|
232
|
|
|
* @param mixed $items |
|
233
|
|
|
* @param callable $callback |
|
234
|
|
|
* @return static |
|
235
|
|
|
*/ |
|
236
|
1 |
|
public function diffAssocUsing($items, callable $callback) |
|
237
|
|
|
{ |
|
238
|
1 |
|
return $this->passthru('diffAssocUsing', func_get_args()); |
|
239
|
|
|
} |
|
240
|
|
|
|
|
241
|
|
|
/** |
|
242
|
|
|
* Get the items whose keys are not present in the given items. |
|
243
|
|
|
* |
|
244
|
|
|
* @param mixed $items |
|
245
|
|
|
* @return static |
|
246
|
|
|
*/ |
|
247
|
2 |
|
public function diffKeys($items) |
|
248
|
|
|
{ |
|
249
|
2 |
|
return $this->passthru('diffKeys', func_get_args()); |
|
250
|
|
|
} |
|
251
|
|
|
|
|
252
|
|
|
/** |
|
253
|
|
|
* Get the items whose keys are not present in the given items. |
|
254
|
|
|
* |
|
255
|
|
|
* @param mixed $items |
|
256
|
|
|
* @param callable $callback |
|
257
|
|
|
* @return static |
|
258
|
|
|
*/ |
|
259
|
1 |
|
public function diffKeysUsing($items, callable $callback) |
|
260
|
|
|
{ |
|
261
|
1 |
|
return $this->passthru('diffKeysUsing', func_get_args()); |
|
262
|
|
|
} |
|
263
|
|
|
|
|
264
|
|
|
/** |
|
265
|
|
|
* Retrieve duplicate items. |
|
266
|
|
|
* |
|
267
|
|
|
* @param callable|null $callback |
|
268
|
|
|
* @param bool $strict |
|
269
|
|
|
* @return static |
|
270
|
|
|
*/ |
|
271
|
3 |
|
public function duplicates($callback = null, $strict = false) |
|
272
|
|
|
{ |
|
273
|
3 |
|
return $this->passthru('duplicates', func_get_args()); |
|
274
|
|
|
} |
|
275
|
|
|
|
|
276
|
|
|
/** |
|
277
|
|
|
* Retrieve duplicate items using strict comparison. |
|
278
|
|
|
* |
|
279
|
|
|
* @param callable|null $callback |
|
280
|
|
|
* @return static |
|
281
|
|
|
*/ |
|
282
|
1 |
|
public function duplicatesStrict($callback = null) |
|
283
|
|
|
{ |
|
284
|
1 |
|
return $this->passthru('duplicatesStrict', func_get_args()); |
|
285
|
|
|
} |
|
286
|
|
|
|
|
287
|
|
|
/** |
|
288
|
|
|
* Get all items except for those with the specified keys. |
|
289
|
|
|
* |
|
290
|
|
|
* @param mixed $keys |
|
291
|
|
|
* @return static |
|
292
|
|
|
*/ |
|
293
|
2 |
|
public function except($keys) |
|
294
|
|
|
{ |
|
295
|
2 |
|
return $this->passthru('except', func_get_args()); |
|
296
|
|
|
} |
|
297
|
|
|
|
|
298
|
|
|
/** |
|
299
|
|
|
* Run a filter over each of the items. |
|
300
|
|
|
* |
|
301
|
|
|
* @param callable|null $callback |
|
302
|
|
|
* @return static |
|
303
|
|
|
*/ |
|
304
|
22 |
|
public function filter(callable $callback = null) |
|
305
|
|
|
{ |
|
306
|
22 |
|
if (is_null($callback)) { |
|
307
|
|
|
$callback = function ($value) { |
|
308
|
1 |
|
return (bool) $value; |
|
309
|
1 |
|
}; |
|
310
|
|
|
} |
|
311
|
|
|
|
|
312
|
|
|
return new static(function () use ($callback) { |
|
313
|
22 |
|
foreach ($this as $key => $value) { |
|
314
|
22 |
|
if ($callback($value, $key)) { |
|
315
|
22 |
|
yield $key => $value; |
|
316
|
|
|
} |
|
317
|
|
|
} |
|
318
|
22 |
|
}); |
|
319
|
|
|
} |
|
320
|
|
|
|
|
321
|
|
|
/** |
|
322
|
|
|
* Get the first item from the enumerable passing the given truth test. |
|
323
|
|
|
* |
|
324
|
|
|
* @param callable|null $callback |
|
325
|
|
|
* @param mixed $default |
|
326
|
|
|
* @return mixed |
|
327
|
|
|
*/ |
|
328
|
10 |
|
public function first(callable $callback = null, $default = null) |
|
329
|
|
|
{ |
|
330
|
10 |
|
$iterator = $this->getIterator(); |
|
331
|
|
|
|
|
332
|
10 |
|
if (is_null($callback)) { |
|
333
|
3 |
|
if (! $iterator->valid()) { |
|
334
|
1 |
|
return value($default); |
|
335
|
|
|
} |
|
336
|
|
|
|
|
337
|
2 |
|
return $iterator->current(); |
|
338
|
|
|
} |
|
339
|
|
|
|
|
340
|
7 |
|
foreach ($iterator as $key => $value) { |
|
341
|
7 |
|
if ($callback($value, $key)) { |
|
342
|
6 |
|
return $value; |
|
343
|
|
|
} |
|
344
|
|
|
} |
|
345
|
|
|
|
|
346
|
6 |
|
return value($default); |
|
347
|
|
|
} |
|
348
|
|
|
|
|
349
|
|
|
/** |
|
350
|
|
|
* Get a flattened list of the items in the collection. |
|
351
|
|
|
* |
|
352
|
|
|
* @param int $depth |
|
353
|
|
|
* @return static |
|
354
|
|
|
*/ |
|
355
|
3 |
|
public function flatten($depth = INF) |
|
356
|
|
|
{ |
|
357
|
|
|
$instance = new static(function () use ($depth) { |
|
358
|
3 |
|
foreach ($this as $item) { |
|
359
|
3 |
|
if (! is_array($item) && ! $item instanceof Enumerable) { |
|
360
|
3 |
|
yield $item; |
|
361
|
3 |
|
} elseif ($depth === 1) { |
|
362
|
2 |
|
yield from $item; |
|
363
|
|
|
} else { |
|
364
|
3 |
|
yield from (new static($item))->flatten($depth - 1); |
|
365
|
|
|
} |
|
366
|
|
|
} |
|
367
|
3 |
|
}); |
|
368
|
|
|
|
|
369
|
3 |
|
return $instance->values(); |
|
370
|
|
|
} |
|
371
|
|
|
|
|
372
|
|
|
/** |
|
373
|
|
|
* Flip the items in the collection. |
|
374
|
|
|
* |
|
375
|
|
|
* @return static |
|
376
|
|
|
*/ |
|
377
|
1 |
|
public function flip() |
|
378
|
|
|
{ |
|
379
|
|
|
return new static(function () { |
|
380
|
1 |
|
foreach ($this as $key => $value) { |
|
381
|
1 |
|
yield $value => $key; |
|
382
|
|
|
} |
|
383
|
1 |
|
}); |
|
384
|
|
|
} |
|
385
|
|
|
|
|
386
|
|
|
/** |
|
387
|
|
|
* Get an item by key. |
|
388
|
|
|
* |
|
389
|
|
|
* @param mixed $key |
|
390
|
|
|
* @param mixed $default |
|
391
|
|
|
* @return mixed |
|
392
|
|
|
*/ |
|
393
|
7 |
|
public function get($key, $default = null) |
|
394
|
|
|
{ |
|
395
|
7 |
|
if (is_null($key)) { |
|
396
|
1 |
|
return; |
|
397
|
|
|
} |
|
398
|
|
|
|
|
399
|
6 |
|
foreach ($this as $outerKey => $outerValue) { |
|
400
|
6 |
|
if ($outerKey == $key) { |
|
401
|
6 |
|
return $outerValue; |
|
402
|
|
|
} |
|
403
|
|
|
} |
|
404
|
|
|
|
|
405
|
|
|
return value($default); |
|
406
|
|
|
} |
|
407
|
|
|
|
|
408
|
|
|
/** |
|
409
|
|
|
* Group an associative array by a field or using a callback. |
|
410
|
|
|
* |
|
411
|
|
|
* @param array|callable|string $groupBy |
|
412
|
|
|
* @param bool $preserveKeys |
|
413
|
|
|
* @return static |
|
414
|
|
|
*/ |
|
415
|
10 |
|
public function groupBy($groupBy, $preserveKeys = false) |
|
416
|
|
|
{ |
|
417
|
10 |
|
return $this->passthru('groupBy', func_get_args()); |
|
418
|
|
|
} |
|
419
|
|
|
|
|
420
|
|
|
/** |
|
421
|
|
|
* Key an associative array by a field or using a callback. |
|
422
|
|
|
* |
|
423
|
|
|
* @param callable|string $keyBy |
|
424
|
|
|
* @return static |
|
425
|
|
|
*/ |
|
426
|
4 |
|
public function keyBy($keyBy) |
|
427
|
|
|
{ |
|
428
|
|
|
return new static(function () use ($keyBy) { |
|
429
|
4 |
|
$keyBy = $this->valueRetriever($keyBy); |
|
|
|
|
|
|
430
|
|
|
|
|
431
|
4 |
|
foreach ($this as $key => $item) { |
|
432
|
4 |
|
$resolvedKey = $keyBy($item, $key); |
|
433
|
|
|
|
|
434
|
4 |
|
if (is_object($resolvedKey)) { |
|
435
|
1 |
|
$resolvedKey = (string) $resolvedKey; |
|
436
|
|
|
} |
|
437
|
|
|
|
|
438
|
4 |
|
yield $resolvedKey => $item; |
|
439
|
|
|
} |
|
440
|
4 |
|
}); |
|
441
|
|
|
} |
|
442
|
|
|
|
|
443
|
|
|
/** |
|
444
|
|
|
* Determine if an item exists in the collection by key. |
|
445
|
|
|
* |
|
446
|
|
|
* @param mixed $key |
|
447
|
|
|
* @return bool |
|
448
|
|
|
*/ |
|
449
|
2 |
|
public function has($key) |
|
450
|
|
|
{ |
|
451
|
2 |
|
$keys = array_flip(is_array($key) ? $key : func_get_args()); |
|
452
|
2 |
|
$count = count($keys); |
|
453
|
|
|
|
|
454
|
2 |
|
foreach ($this as $key => $value) { |
|
455
|
2 |
|
if (array_key_exists($key, $keys) && --$count == 0) { |
|
456
|
2 |
|
return true; |
|
457
|
|
|
} |
|
458
|
|
|
} |
|
459
|
|
|
|
|
460
|
2 |
|
return false; |
|
461
|
|
|
} |
|
462
|
|
|
|
|
463
|
|
|
/** |
|
464
|
|
|
* Concatenate values of a given key as a string. |
|
465
|
|
|
* |
|
466
|
|
|
* @param string $value |
|
467
|
|
|
* @param string $glue |
|
468
|
|
|
* @return string |
|
469
|
|
|
*/ |
|
470
|
1 |
|
public function implode($value, $glue = null) |
|
471
|
|
|
{ |
|
472
|
1 |
|
return $this->collect()->implode(...func_get_args()); |
|
473
|
|
|
} |
|
474
|
|
|
|
|
475
|
|
|
/** |
|
476
|
|
|
* Intersect the collection with the given items. |
|
477
|
|
|
* |
|
478
|
|
|
* @param mixed $items |
|
479
|
|
|
* @return static |
|
480
|
|
|
*/ |
|
481
|
2 |
|
public function intersect($items) |
|
482
|
|
|
{ |
|
483
|
2 |
|
return $this->passthru('intersect', func_get_args()); |
|
484
|
|
|
} |
|
485
|
|
|
|
|
486
|
|
|
/** |
|
487
|
|
|
* Intersect the collection with the given items by key. |
|
488
|
|
|
* |
|
489
|
|
|
* @param mixed $items |
|
490
|
|
|
* @return static |
|
491
|
|
|
*/ |
|
492
|
2 |
|
public function intersectByKeys($items) |
|
493
|
|
|
{ |
|
494
|
2 |
|
return $this->passthru('intersectByKeys', func_get_args()); |
|
495
|
|
|
} |
|
496
|
|
|
|
|
497
|
|
|
/** |
|
498
|
|
|
* Determine if the items is empty or not. |
|
499
|
|
|
* |
|
500
|
|
|
* @return bool |
|
501
|
|
|
*/ |
|
502
|
12 |
|
public function isEmpty() |
|
503
|
|
|
{ |
|
504
|
12 |
|
return ! $this->getIterator()->valid(); |
|
|
|
|
|
|
505
|
|
|
} |
|
506
|
|
|
|
|
507
|
|
|
/** |
|
508
|
|
|
* Join all items from the collection using a string. The final items can use a separate glue string. |
|
509
|
|
|
* |
|
510
|
|
|
* @param string $glue |
|
511
|
|
|
* @param string $finalGlue |
|
512
|
|
|
* @return string |
|
513
|
|
|
*/ |
|
514
|
1 |
|
public function join($glue, $finalGlue = '') |
|
515
|
|
|
{ |
|
516
|
1 |
|
return $this->collect()->join(...func_get_args()); |
|
517
|
|
|
} |
|
518
|
|
|
|
|
519
|
|
|
/** |
|
520
|
|
|
* Get the keys of the collection items. |
|
521
|
|
|
* |
|
522
|
|
|
* @return static |
|
523
|
|
|
*/ |
|
524
|
3 |
|
public function keys() |
|
525
|
|
|
{ |
|
526
|
|
|
return new static(function () { |
|
527
|
3 |
|
foreach ($this as $key => $value) { |
|
528
|
3 |
|
yield $key; |
|
529
|
|
|
} |
|
530
|
3 |
|
}); |
|
531
|
|
|
} |
|
532
|
|
|
|
|
533
|
|
|
/** |
|
534
|
|
|
* Get the last item from the collection. |
|
535
|
|
|
* |
|
536
|
|
|
* @param callable|null $callback |
|
537
|
|
|
* @param mixed $default |
|
538
|
|
|
* @return mixed |
|
539
|
|
|
*/ |
|
540
|
4 |
|
public function last(callable $callback = null, $default = null) |
|
541
|
|
|
{ |
|
542
|
4 |
|
$needle = $placeholder = new stdClass; |
|
543
|
|
|
|
|
544
|
4 |
|
foreach ($this as $key => $value) { |
|
545
|
3 |
|
if (is_null($callback) || $callback($value, $key)) { |
|
546
|
2 |
|
$needle = $value; |
|
547
|
|
|
} |
|
548
|
|
|
} |
|
549
|
|
|
|
|
550
|
4 |
|
return $needle === $placeholder ? value($default) : $needle; |
|
551
|
|
|
} |
|
552
|
|
|
|
|
553
|
|
|
/** |
|
554
|
|
|
* Get the values of a given key. |
|
555
|
|
|
* |
|
556
|
|
|
* @param string|array $value |
|
557
|
|
|
* @param string|null $key |
|
558
|
|
|
* @return static |
|
559
|
|
|
*/ |
|
560
|
4 |
|
public function pluck($value, $key = null) |
|
561
|
|
|
{ |
|
562
|
|
|
return new static(function () use ($value, $key) { |
|
563
|
4 |
|
[$value, $key] = $this->explodePluckParameters($value, $key); |
|
564
|
|
|
|
|
565
|
4 |
|
foreach ($this as $item) { |
|
566
|
4 |
|
$itemValue = data_get($item, $value); |
|
567
|
|
|
|
|
568
|
4 |
|
if (is_null($key)) { |
|
569
|
4 |
|
yield $itemValue; |
|
570
|
|
|
} else { |
|
571
|
2 |
|
$itemKey = data_get($item, $key); |
|
572
|
|
|
|
|
573
|
2 |
|
if (is_object($itemKey) && method_exists($itemKey, '__toString')) { |
|
574
|
|
|
$itemKey = (string) $itemKey; |
|
575
|
|
|
} |
|
576
|
|
|
|
|
577
|
2 |
|
yield $itemKey => $itemValue; |
|
578
|
|
|
} |
|
579
|
|
|
} |
|
580
|
4 |
|
}); |
|
581
|
|
|
} |
|
582
|
|
|
|
|
583
|
|
|
/** |
|
584
|
|
|
* Run a map over each of the items. |
|
585
|
|
|
* |
|
586
|
|
|
* @param callable $callback |
|
587
|
|
|
* @return static |
|
588
|
|
|
*/ |
|
589
|
68 |
|
public function map(callable $callback) |
|
590
|
|
|
{ |
|
591
|
|
|
return new static(function () use ($callback) { |
|
592
|
68 |
|
foreach ($this as $key => $value) { |
|
593
|
65 |
|
yield $key => $callback($value, $key); |
|
594
|
|
|
} |
|
595
|
68 |
|
}); |
|
596
|
|
|
} |
|
597
|
|
|
|
|
598
|
|
|
/** |
|
599
|
|
|
* Run a dictionary map over the items. |
|
600
|
|
|
* |
|
601
|
|
|
* The callback should return an associative array with a single key/value pair. |
|
602
|
|
|
* |
|
603
|
|
|
* @param callable $callback |
|
604
|
|
|
* @return static |
|
605
|
|
|
*/ |
|
606
|
4 |
|
public function mapToDictionary(callable $callback) |
|
607
|
|
|
{ |
|
608
|
4 |
|
return $this->passthru('mapToDictionary', func_get_args()); |
|
609
|
|
|
} |
|
610
|
|
|
|
|
611
|
|
|
/** |
|
612
|
|
|
* Run an associative map over each of the items. |
|
613
|
|
|
* |
|
614
|
|
|
* The callback should return an associative array with a single key/value pair. |
|
615
|
|
|
* |
|
616
|
|
|
* @param callable $callback |
|
617
|
|
|
* @return static |
|
618
|
|
|
*/ |
|
619
|
5 |
|
public function mapWithKeys(callable $callback) |
|
620
|
|
|
{ |
|
621
|
|
|
return new static(function () use ($callback) { |
|
622
|
5 |
|
foreach ($this as $key => $value) { |
|
623
|
5 |
|
yield from $callback($value, $key); |
|
624
|
|
|
} |
|
625
|
5 |
|
}); |
|
626
|
|
|
} |
|
627
|
|
|
|
|
628
|
|
|
/** |
|
629
|
|
|
* Merge the collection with the given items. |
|
630
|
|
|
* |
|
631
|
|
|
* @param mixed $items |
|
632
|
|
|
* @return static |
|
633
|
|
|
*/ |
|
634
|
3 |
|
public function merge($items) |
|
635
|
|
|
{ |
|
636
|
3 |
|
return $this->passthru('merge', func_get_args()); |
|
637
|
|
|
} |
|
638
|
|
|
|
|
639
|
|
|
/** |
|
640
|
|
|
* Recursively merge the collection with the given items. |
|
641
|
|
|
* |
|
642
|
|
|
* @param mixed $items |
|
643
|
|
|
* @return static |
|
644
|
|
|
*/ |
|
645
|
3 |
|
public function mergeRecursive($items) |
|
646
|
|
|
{ |
|
647
|
3 |
|
return $this->passthru('mergeRecursive', func_get_args()); |
|
648
|
|
|
} |
|
649
|
|
|
|
|
650
|
|
|
/** |
|
651
|
|
|
* Create a collection by using this collection for keys and another for its values. |
|
652
|
|
|
* |
|
653
|
|
|
* @param mixed $values |
|
654
|
|
|
* @return static |
|
655
|
|
|
*/ |
|
656
|
2 |
|
public function combine($values) |
|
657
|
|
|
{ |
|
658
|
|
|
return new static(function () use ($values) { |
|
659
|
2 |
|
$values = $this->makeIterator($values); |
|
|
|
|
|
|
660
|
|
|
|
|
661
|
2 |
|
$errorMessage = 'Both parameters should have an equal number of elements'; |
|
662
|
|
|
|
|
663
|
2 |
|
foreach ($this as $key) { |
|
664
|
2 |
|
if (! $values->valid()) { |
|
665
|
|
|
trigger_error($errorMessage, E_USER_WARNING); |
|
666
|
|
|
|
|
667
|
|
|
break; |
|
668
|
|
|
} |
|
669
|
|
|
|
|
670
|
2 |
|
yield $key => $values->current(); |
|
671
|
|
|
|
|
672
|
2 |
|
$values->next(); |
|
673
|
|
|
} |
|
674
|
|
|
|
|
675
|
2 |
|
if ($values->valid()) { |
|
676
|
|
|
trigger_error($errorMessage, E_USER_WARNING); |
|
677
|
|
|
} |
|
678
|
2 |
|
}); |
|
679
|
|
|
} |
|
680
|
|
|
|
|
681
|
|
|
/** |
|
682
|
|
|
* Union the collection with the given items. |
|
683
|
|
|
* |
|
684
|
|
|
* @param mixed $items |
|
685
|
|
|
* @return static |
|
686
|
|
|
*/ |
|
687
|
3 |
|
public function union($items) |
|
688
|
|
|
{ |
|
689
|
3 |
|
return $this->passthru('union', func_get_args()); |
|
690
|
|
|
} |
|
691
|
|
|
|
|
692
|
|
|
/** |
|
693
|
|
|
* Create a new collection consisting of every n-th element. |
|
694
|
|
|
* |
|
695
|
|
|
* @param int $step |
|
696
|
|
|
* @param int $offset |
|
697
|
|
|
* @return static |
|
698
|
|
|
*/ |
|
699
|
1 |
|
public function nth($step, $offset = 0) |
|
700
|
|
|
{ |
|
701
|
|
|
return new static(function () use ($step, $offset) { |
|
702
|
1 |
|
$position = 0; |
|
703
|
|
|
|
|
704
|
1 |
|
foreach ($this as $item) { |
|
705
|
1 |
|
if ($position % $step === $offset) { |
|
706
|
1 |
|
yield $item; |
|
707
|
|
|
} |
|
708
|
|
|
|
|
709
|
1 |
|
$position++; |
|
710
|
|
|
} |
|
711
|
1 |
|
}); |
|
712
|
|
|
} |
|
713
|
|
|
|
|
714
|
|
|
/** |
|
715
|
|
|
* Get the items with the specified keys. |
|
716
|
|
|
* |
|
717
|
|
|
* @param mixed $keys |
|
718
|
|
|
* @return static |
|
719
|
|
|
*/ |
|
720
|
1 |
|
public function only($keys) |
|
721
|
|
|
{ |
|
722
|
1 |
|
if ($keys instanceof Enumerable) { |
|
723
|
1 |
|
$keys = $keys->all(); |
|
724
|
1 |
|
} elseif (! is_null($keys)) { |
|
725
|
1 |
|
$keys = is_array($keys) ? $keys : func_get_args(); |
|
726
|
|
|
} |
|
727
|
|
|
|
|
728
|
|
|
return new static(function () use ($keys) { |
|
729
|
1 |
|
if (is_null($keys)) { |
|
730
|
1 |
|
yield from $this; |
|
731
|
|
|
} else { |
|
732
|
1 |
|
$keys = array_flip($keys); |
|
|
|
|
|
|
733
|
|
|
|
|
734
|
1 |
|
foreach ($this as $key => $value) { |
|
735
|
1 |
|
if (array_key_exists($key, $keys)) { |
|
736
|
1 |
|
yield $key => $value; |
|
737
|
|
|
|
|
738
|
1 |
|
unset($keys[$key]); |
|
739
|
|
|
|
|
740
|
1 |
|
if (empty($keys)) { |
|
741
|
1 |
|
break; |
|
742
|
|
|
} |
|
743
|
|
|
} |
|
744
|
|
|
} |
|
745
|
|
|
} |
|
746
|
1 |
|
}); |
|
747
|
|
|
} |
|
748
|
|
|
|
|
749
|
|
|
/** |
|
750
|
|
|
* Push all of the given items onto the collection. |
|
751
|
|
|
* |
|
752
|
|
|
* @param iterable $source |
|
753
|
|
|
* @return static |
|
754
|
|
|
*/ |
|
755
|
15 |
|
public function concat($source) |
|
756
|
|
|
{ |
|
757
|
|
|
return (new static(function () use ($source) { |
|
758
|
15 |
|
yield from $this; |
|
759
|
15 |
|
yield from $source; |
|
760
|
15 |
|
}))->values(); |
|
761
|
|
|
} |
|
762
|
|
|
|
|
763
|
|
|
/** |
|
764
|
|
|
* Get one or a specified number of items randomly from the collection. |
|
765
|
|
|
* |
|
766
|
|
|
* @param int|null $number |
|
767
|
|
|
* @return static|mixed |
|
768
|
|
|
* |
|
769
|
|
|
* @throws \InvalidArgumentException |
|
770
|
|
|
*/ |
|
771
|
3 |
|
public function random($number = null) |
|
772
|
|
|
{ |
|
773
|
3 |
|
$result = $this->collect()->random(...func_get_args()); |
|
774
|
|
|
|
|
775
|
2 |
|
return is_null($number) ? $result : new static($result); |
|
776
|
|
|
} |
|
777
|
|
|
|
|
778
|
|
|
/** |
|
779
|
|
|
* Reduce the collection to a single value. |
|
780
|
|
|
* |
|
781
|
|
|
* @param callable $callback |
|
782
|
|
|
* @param mixed $initial |
|
783
|
|
|
* @return mixed |
|
784
|
|
|
*/ |
|
785
|
7 |
|
public function reduce(callable $callback, $initial = null) |
|
786
|
|
|
{ |
|
787
|
7 |
|
$result = $initial; |
|
788
|
|
|
|
|
789
|
7 |
|
foreach ($this as $value) { |
|
790
|
6 |
|
$result = $callback($result, $value); |
|
791
|
|
|
} |
|
792
|
|
|
|
|
793
|
7 |
|
return $result; |
|
794
|
|
|
} |
|
795
|
|
|
|
|
796
|
|
|
/** |
|
797
|
|
|
* Replace the collection items with the given items. |
|
798
|
|
|
* |
|
799
|
|
|
* @param mixed $items |
|
800
|
|
|
* @return static |
|
801
|
|
|
*/ |
|
802
|
3 |
|
public function replace($items) |
|
803
|
|
|
{ |
|
804
|
|
|
return new static(function () use ($items) { |
|
805
|
3 |
|
$items = $this->getArrayableItems($items); |
|
|
|
|
|
|
806
|
|
|
|
|
807
|
3 |
|
foreach ($this as $key => $value) { |
|
808
|
3 |
|
if (array_key_exists($key, $items)) { |
|
809
|
2 |
|
yield $key => $items[$key]; |
|
810
|
|
|
|
|
811
|
2 |
|
unset($items[$key]); |
|
812
|
|
|
} else { |
|
813
|
3 |
|
yield $key => $value; |
|
814
|
|
|
} |
|
815
|
|
|
} |
|
816
|
|
|
|
|
817
|
3 |
|
foreach ($items as $key => $value) { |
|
818
|
|
|
yield $key => $value; |
|
819
|
|
|
} |
|
820
|
3 |
|
}); |
|
821
|
|
|
} |
|
822
|
|
|
|
|
823
|
|
|
/** |
|
824
|
|
|
* Recursively replace the collection items with the given items. |
|
825
|
|
|
* |
|
826
|
|
|
* @param mixed $items |
|
827
|
|
|
* @return static |
|
828
|
|
|
*/ |
|
829
|
3 |
|
public function replaceRecursive($items) |
|
830
|
|
|
{ |
|
831
|
3 |
|
return $this->passthru('replaceRecursive', func_get_args()); |
|
832
|
|
|
} |
|
833
|
|
|
|
|
834
|
|
|
/** |
|
835
|
|
|
* Reverse items order. |
|
836
|
|
|
* |
|
837
|
|
|
* @return static |
|
838
|
|
|
*/ |
|
839
|
1 |
|
public function reverse() |
|
840
|
|
|
{ |
|
841
|
1 |
|
return $this->passthru('reverse', func_get_args()); |
|
842
|
|
|
} |
|
843
|
|
|
|
|
844
|
|
|
/** |
|
845
|
|
|
* Search the collection for a given value and return the corresponding key if successful. |
|
846
|
|
|
* |
|
847
|
|
|
* @param mixed $value |
|
848
|
|
|
* @param bool $strict |
|
849
|
|
|
* @return mixed |
|
850
|
|
|
*/ |
|
851
|
3 |
|
public function search($value, $strict = false) |
|
852
|
|
|
{ |
|
853
|
3 |
|
$predicate = $this->useAsCallable($value) |
|
854
|
2 |
|
? $value |
|
855
|
|
|
: function ($item) use ($value, $strict) { |
|
856
|
3 |
|
return $strict ? $item === $value : $item == $value; |
|
857
|
3 |
|
}; |
|
858
|
|
|
|
|
859
|
3 |
|
foreach ($this as $key => $item) { |
|
860
|
3 |
|
if ($predicate($item, $key)) { |
|
861
|
2 |
|
return $key; |
|
862
|
|
|
} |
|
863
|
|
|
} |
|
864
|
|
|
|
|
865
|
2 |
|
return false; |
|
866
|
|
|
} |
|
867
|
|
|
|
|
868
|
|
|
/** |
|
869
|
|
|
* Shuffle the items in the collection. |
|
870
|
|
|
* |
|
871
|
|
|
* @param int $seed |
|
872
|
|
|
* @return static |
|
873
|
|
|
*/ |
|
874
|
1 |
|
public function shuffle($seed = null) |
|
875
|
|
|
{ |
|
876
|
1 |
|
return $this->passthru('shuffle', func_get_args()); |
|
877
|
|
|
} |
|
878
|
|
|
|
|
879
|
|
|
/** |
|
880
|
|
|
* Skip the first {$count} items. |
|
881
|
|
|
* |
|
882
|
|
|
* @param int $count |
|
883
|
|
|
* @return static |
|
884
|
|
|
*/ |
|
885
|
5 |
|
public function skip($count) |
|
886
|
|
|
{ |
|
887
|
|
|
return new static(function () use ($count) { |
|
888
|
5 |
|
$iterator = $this->getIterator(); |
|
889
|
|
|
|
|
890
|
5 |
|
while ($iterator->valid() && $count--) { |
|
891
|
4 |
|
$iterator->next(); |
|
892
|
|
|
} |
|
893
|
|
|
|
|
894
|
5 |
|
while ($iterator->valid()) { |
|
895
|
5 |
|
yield $iterator->key() => $iterator->current(); |
|
896
|
|
|
|
|
897
|
4 |
|
$iterator->next(); |
|
898
|
|
|
} |
|
899
|
5 |
|
}); |
|
900
|
|
|
} |
|
901
|
|
|
|
|
902
|
|
|
/** |
|
903
|
|
|
* Get a slice of items from the enumerable. |
|
904
|
|
|
* |
|
905
|
|
|
* @param int $offset |
|
906
|
|
|
* @param int $length |
|
907
|
|
|
* @return static |
|
908
|
|
|
*/ |
|
909
|
8 |
|
public function slice($offset, $length = null) |
|
910
|
|
|
{ |
|
911
|
8 |
|
if ($offset < 0 || $length < 0) { |
|
912
|
4 |
|
return $this->passthru('slice', func_get_args()); |
|
913
|
|
|
} |
|
914
|
|
|
|
|
915
|
4 |
|
$instance = $this->skip($offset); |
|
916
|
|
|
|
|
917
|
4 |
|
return is_null($length) ? $instance : $instance->take($length); |
|
918
|
|
|
} |
|
919
|
|
|
|
|
920
|
|
|
/** |
|
921
|
|
|
* Split a collection into a certain number of groups. |
|
922
|
|
|
* |
|
923
|
|
|
* @param int $numberOfGroups |
|
924
|
|
|
* @return static |
|
925
|
|
|
*/ |
|
926
|
7 |
|
public function split($numberOfGroups) |
|
927
|
|
|
{ |
|
928
|
7 |
|
return $this->passthru('split', func_get_args()); |
|
929
|
|
|
} |
|
930
|
|
|
|
|
931
|
|
|
/** |
|
932
|
|
|
* Chunk the collection into chunks of the given size. |
|
933
|
|
|
* |
|
934
|
|
|
* @param int $size |
|
935
|
|
|
* @return static |
|
936
|
|
|
*/ |
|
937
|
3 |
|
public function chunk($size) |
|
938
|
|
|
{ |
|
939
|
3 |
|
if ($size <= 0) { |
|
940
|
2 |
|
return static::empty(); |
|
941
|
|
|
} |
|
942
|
|
|
|
|
943
|
|
|
return new static(function () use ($size) { |
|
944
|
1 |
|
$iterator = $this->getIterator(); |
|
945
|
|
|
|
|
946
|
1 |
|
while ($iterator->valid()) { |
|
947
|
1 |
|
$chunk = []; |
|
948
|
|
|
|
|
949
|
1 |
|
while (true) { |
|
950
|
1 |
|
$chunk[$iterator->key()] = $iterator->current(); |
|
951
|
|
|
|
|
952
|
1 |
|
if (count($chunk) < $size) { |
|
953
|
1 |
|
$iterator->next(); |
|
954
|
|
|
|
|
955
|
1 |
|
if (! $iterator->valid()) { |
|
956
|
1 |
|
break; |
|
957
|
|
|
} |
|
958
|
|
|
} else { |
|
959
|
1 |
|
break; |
|
960
|
|
|
} |
|
961
|
|
|
} |
|
962
|
|
|
|
|
963
|
1 |
|
yield new static($chunk); |
|
964
|
|
|
|
|
965
|
1 |
|
$iterator->next(); |
|
966
|
|
|
} |
|
967
|
1 |
|
}); |
|
968
|
|
|
} |
|
969
|
|
|
|
|
970
|
|
|
/** |
|
971
|
|
|
* Sort through each item with a callback. |
|
972
|
|
|
* |
|
973
|
|
|
* @param callable|null $callback |
|
974
|
|
|
* @return static |
|
975
|
|
|
*/ |
|
976
|
2 |
|
public function sort(callable $callback = null) |
|
977
|
|
|
{ |
|
978
|
2 |
|
return $this->passthru('sort', func_get_args()); |
|
979
|
|
|
} |
|
980
|
|
|
|
|
981
|
|
|
/** |
|
982
|
|
|
* Sort the collection using the given callback. |
|
983
|
|
|
* |
|
984
|
|
|
* @param callable|string $callback |
|
985
|
|
|
* @param int $options |
|
986
|
|
|
* @param bool $descending |
|
987
|
|
|
* @return static |
|
988
|
|
|
*/ |
|
989
|
4 |
|
public function sortBy($callback, $options = SORT_REGULAR, $descending = false) |
|
990
|
|
|
{ |
|
991
|
4 |
|
return $this->passthru('sortBy', func_get_args()); |
|
992
|
|
|
} |
|
993
|
|
|
|
|
994
|
|
|
/** |
|
995
|
|
|
* Sort the collection in descending order using the given callback. |
|
996
|
|
|
* |
|
997
|
|
|
* @param callable|string $callback |
|
998
|
|
|
* @param int $options |
|
999
|
|
|
* @return static |
|
1000
|
|
|
*/ |
|
1001
|
1 |
|
public function sortByDesc($callback, $options = SORT_REGULAR) |
|
1002
|
|
|
{ |
|
1003
|
1 |
|
return $this->passthru('sortByDesc', func_get_args()); |
|
1004
|
|
|
} |
|
1005
|
|
|
|
|
1006
|
|
|
/** |
|
1007
|
|
|
* Sort the collection keys. |
|
1008
|
|
|
* |
|
1009
|
|
|
* @param int $options |
|
1010
|
|
|
* @param bool $descending |
|
1011
|
|
|
* @return static |
|
1012
|
|
|
*/ |
|
1013
|
1 |
|
public function sortKeys($options = SORT_REGULAR, $descending = false) |
|
1014
|
|
|
{ |
|
1015
|
1 |
|
return $this->passthru('sortKeys', func_get_args()); |
|
1016
|
|
|
} |
|
1017
|
|
|
|
|
1018
|
|
|
/** |
|
1019
|
|
|
* Sort the collection keys in descending order. |
|
1020
|
|
|
* |
|
1021
|
|
|
* @param int $options |
|
1022
|
|
|
* @return static |
|
1023
|
|
|
*/ |
|
1024
|
1 |
|
public function sortKeysDesc($options = SORT_REGULAR) |
|
1025
|
|
|
{ |
|
1026
|
1 |
|
return $this->passthru('sortKeysDesc', func_get_args()); |
|
1027
|
|
|
} |
|
1028
|
|
|
|
|
1029
|
|
|
/** |
|
1030
|
|
|
* Take the first or last {$limit} items. |
|
1031
|
|
|
* |
|
1032
|
|
|
* @param int $limit |
|
1033
|
|
|
* @return static |
|
1034
|
|
|
*/ |
|
1035
|
5 |
|
public function take($limit) |
|
1036
|
|
|
{ |
|
1037
|
5 |
|
if ($limit < 0) { |
|
1038
|
1 |
|
return $this->passthru('take', func_get_args()); |
|
1039
|
|
|
} |
|
1040
|
|
|
|
|
1041
|
|
|
return new static(function () use ($limit) { |
|
1042
|
4 |
|
$iterator = $this->getIterator(); |
|
1043
|
|
|
|
|
1044
|
4 |
|
while ($limit--) { |
|
1045
|
4 |
|
if (! $iterator->valid()) { |
|
1046
|
1 |
|
break; |
|
1047
|
|
|
} |
|
1048
|
|
|
|
|
1049
|
4 |
|
yield $iterator->key() => $iterator->current(); |
|
1050
|
|
|
|
|
1051
|
4 |
|
if ($limit) { |
|
1052
|
3 |
|
$iterator->next(); |
|
1053
|
|
|
} |
|
1054
|
|
|
} |
|
1055
|
4 |
|
}); |
|
1056
|
|
|
} |
|
1057
|
|
|
|
|
1058
|
|
|
/** |
|
1059
|
|
|
* Pass each item in the collection to the given callback, lazily. |
|
1060
|
|
|
* |
|
1061
|
|
|
* @param callable $callback |
|
1062
|
|
|
* @return static |
|
1063
|
|
|
*/ |
|
1064
|
|
|
public function tapEach(callable $callback) |
|
1065
|
|
|
{ |
|
1066
|
|
|
return new static(function () use ($callback) { |
|
1067
|
|
|
foreach ($this as $key => $value) { |
|
1068
|
|
|
$callback($value, $key); |
|
1069
|
|
|
|
|
1070
|
|
|
yield $key => $value; |
|
1071
|
|
|
} |
|
1072
|
|
|
}); |
|
1073
|
|
|
} |
|
1074
|
|
|
|
|
1075
|
|
|
/** |
|
1076
|
|
|
* Reset the keys on the underlying array. |
|
1077
|
|
|
* |
|
1078
|
|
|
* @return static |
|
1079
|
|
|
*/ |
|
1080
|
46 |
|
public function values() |
|
1081
|
|
|
{ |
|
1082
|
|
|
return new static(function () { |
|
1083
|
46 |
|
foreach ($this as $item) { |
|
1084
|
46 |
|
yield $item; |
|
1085
|
|
|
} |
|
1086
|
46 |
|
}); |
|
1087
|
|
|
} |
|
1088
|
|
|
|
|
1089
|
|
|
/** |
|
1090
|
|
|
* Zip the collection together with one or more arrays. |
|
1091
|
|
|
* |
|
1092
|
|
|
* e.g. new LazyCollection([1, 2, 3])->zip([4, 5, 6]); |
|
1093
|
|
|
* => [[1, 4], [2, 5], [3, 6]] |
|
1094
|
|
|
* |
|
1095
|
|
|
* @param mixed ...$items |
|
1096
|
|
|
* @return static |
|
1097
|
|
|
*/ |
|
1098
|
1 |
|
public function zip($items) |
|
1099
|
|
|
{ |
|
1100
|
1 |
|
$iterables = func_get_args(); |
|
1101
|
|
|
|
|
1102
|
|
|
return new static(function () use ($iterables) { |
|
1103
|
|
|
$iterators = Collection::make($iterables)->map(function ($iterable) { |
|
1104
|
1 |
|
return $this->makeIterator($iterable); |
|
1105
|
1 |
|
})->prepend($this->getIterator()); |
|
1106
|
|
|
|
|
1107
|
1 |
|
while ($iterators->contains->valid()) { |
|
1108
|
1 |
|
yield new static($iterators->map->current()); |
|
1109
|
|
|
|
|
1110
|
1 |
|
$iterators->each->next(); |
|
1111
|
|
|
} |
|
1112
|
1 |
|
}); |
|
1113
|
|
|
} |
|
1114
|
|
|
|
|
1115
|
|
|
/** |
|
1116
|
|
|
* Pad collection to the specified length with a value. |
|
1117
|
|
|
* |
|
1118
|
|
|
* @param int $size |
|
1119
|
|
|
* @param mixed $value |
|
1120
|
|
|
* @return static |
|
1121
|
|
|
*/ |
|
1122
|
1 |
|
public function pad($size, $value) |
|
1123
|
|
|
{ |
|
1124
|
1 |
|
if ($size < 0) { |
|
1125
|
1 |
|
return $this->passthru('pad', func_get_args()); |
|
1126
|
|
|
} |
|
1127
|
|
|
|
|
1128
|
|
|
return new static(function () use ($size, $value) { |
|
1129
|
1 |
|
$yielded = 0; |
|
1130
|
|
|
|
|
1131
|
1 |
|
foreach ($this as $index => $item) { |
|
1132
|
1 |
|
yield $index => $item; |
|
1133
|
|
|
|
|
1134
|
1 |
|
$yielded++; |
|
1135
|
|
|
} |
|
1136
|
|
|
|
|
1137
|
1 |
|
while ($yielded++ < $size) { |
|
1138
|
1 |
|
yield $value; |
|
1139
|
|
|
} |
|
1140
|
1 |
|
}); |
|
1141
|
|
|
} |
|
1142
|
|
|
|
|
1143
|
|
|
/** |
|
1144
|
|
|
* Get the values iterator. |
|
1145
|
|
|
* |
|
1146
|
|
|
* @return \Traversable |
|
1147
|
|
|
*/ |
|
1148
|
195 |
|
public function getIterator() |
|
1149
|
|
|
{ |
|
1150
|
195 |
|
return $this->makeIterator($this->source); |
|
1151
|
|
|
} |
|
1152
|
|
|
|
|
1153
|
|
|
/** |
|
1154
|
|
|
* Count the number of items in the collection. |
|
1155
|
|
|
* |
|
1156
|
|
|
* @return int |
|
1157
|
|
|
*/ |
|
1158
|
9 |
|
public function count() |
|
1159
|
|
|
{ |
|
1160
|
9 |
|
if (is_array($this->source)) { |
|
1161
|
4 |
|
return count($this->source); |
|
1162
|
|
|
} |
|
1163
|
|
|
|
|
1164
|
5 |
|
return iterator_count($this->getIterator()); |
|
1165
|
|
|
} |
|
1166
|
|
|
|
|
1167
|
|
|
/** |
|
1168
|
|
|
* Make an iterator from the given source. |
|
1169
|
|
|
* |
|
1170
|
|
|
* @param mixed $source |
|
1171
|
|
|
* @return \Traversable |
|
1172
|
|
|
*/ |
|
1173
|
195 |
|
protected function makeIterator($source) |
|
1174
|
|
|
{ |
|
1175
|
195 |
|
if ($source instanceof IteratorAggregate) { |
|
1176
|
28 |
|
return $source->getIterator(); |
|
1177
|
|
|
} |
|
1178
|
|
|
|
|
1179
|
195 |
|
if (is_array($source)) { |
|
1180
|
133 |
|
return new ArrayIterator($source); |
|
1181
|
|
|
} |
|
1182
|
|
|
|
|
1183
|
156 |
|
return $source(); |
|
1184
|
|
|
} |
|
1185
|
|
|
|
|
1186
|
|
|
/** |
|
1187
|
|
|
* Explode the "value" and "key" arguments passed to "pluck". |
|
1188
|
|
|
* |
|
1189
|
|
|
* @param string|array $value |
|
1190
|
|
|
* @param string|array|null $key |
|
1191
|
|
|
* @return array |
|
1192
|
|
|
*/ |
|
1193
|
4 |
|
protected function explodePluckParameters($value, $key) |
|
1194
|
|
|
{ |
|
1195
|
4 |
|
$value = is_string($value) ? explode('.', $value) : $value; |
|
1196
|
|
|
|
|
1197
|
4 |
|
$key = is_null($key) || is_array($key) ? $key : explode('.', $key); |
|
1198
|
|
|
|
|
1199
|
4 |
|
return [$value, $key]; |
|
1200
|
|
|
} |
|
1201
|
|
|
|
|
1202
|
|
|
/** |
|
1203
|
|
|
* Pass this lazy collection through a method on the collection class. |
|
1204
|
|
|
* |
|
1205
|
|
|
* @param string $method |
|
1206
|
|
|
* @param array $params |
|
1207
|
|
|
* @return static |
|
1208
|
|
|
*/ |
|
1209
|
68 |
|
protected function passthru($method, array $params) |
|
1210
|
|
|
{ |
|
1211
|
|
|
return new static(function () use ($method, $params) { |
|
1212
|
67 |
|
yield from $this->collect()->$method(...$params); |
|
1213
|
68 |
|
}); |
|
1214
|
|
|
} |
|
1215
|
|
|
} |
|
1216
|
|
|
|
Adding a
@returnannotation to a constructor is not recommended, since a constructor does not have a meaningful return value.Please refer to the PHP core documentation on constructors.