@@ -65,8 +65,7 @@ public function __construct(
6565 int $ dtype = null ,
6666 array $ shape = null ,
6767 int $ offset = null ,
68- )
69- {
68+ ) {
7069 if ($ array === null && $ dtype === null && $ shape === null && $ offset === null ) {
7170 // Empty definition for Unserialize
7271 return ;
@@ -174,7 +173,7 @@ protected function isBuffer(mixed $buffer): bool
174173 return $ buffer instanceof Buffer;
175174 }
176175
177- protected function isComplex (int $ dtype = null ): bool
176+ protected function isComplex (? int $ dtype = null ): bool
178177 {
179178 $ dtype = $ dtype ?? $ this ->dtype ;
180179 return $ this ->cistype ($ dtype );
@@ -193,11 +192,13 @@ protected function assertShape(array $shape): void
193192 foreach ($ shape as $ num ) {
194193 if (!is_int ($ num )) {
195194 throw new InvalidArgumentException (
196- "Invalid shape numbers. It gives " .gettype ($ num ));
195+ "Invalid shape numbers. It gives " . gettype ($ num )
196+ );
197197 }
198198 if ($ num < 0 ) {
199199 throw new InvalidArgumentException (
200- "Invalid shape numbers. It gives " .$ num );
200+ "Invalid shape numbers. It gives " . $ num
201+ );
201202 }
202203 }
203204 }
@@ -282,7 +283,7 @@ public static function service(): Service
282283 {
283284 if (!isset (self ::$ service )) {
284285 self ::$ service = new TensorService ();
285- // self::$service = new MatlibPhp();
286+ // self::$service = new MatlibPhp();
286287 }
287288
288289 return self ::$ service ;
@@ -361,8 +362,8 @@ public function reshape(array $shape): static
361362 $ this ->assertShape ($ shape );
362363
363364 if ($ this ->size () != array_product ($ shape )) {
364- throw new InvalidArgumentException ("Unmatched size to reshape: " .
365- "[ " . implode (', ' , $ this ->shape ()). "]=>[ " . implode (', ' , $ shape ). "] " );
365+ throw new InvalidArgumentException ("Unmatched size to reshape: " .
366+ "[ " . implode (', ' , $ this ->shape ()) . "]=>[ " . implode (', ' , $ shape ) . "] " );
366367 }
367368
368369 return new self ($ this ->buffer (), $ this ->dtype (), $ shape , $ this ->offset ());
@@ -422,7 +423,7 @@ public function toString(): string
422423 */
423424 public function toBufferArray (): array
424425 {
425- $ fmt = self ::$ pack [$ this ->dtype ]. '* ' ;
426+ $ fmt = self ::$ pack [$ this ->dtype ] . '* ' ;
426427
427428 return array_values (unpack ($ fmt , $ this ->buffer ->dump ()));
428429 }
@@ -565,8 +566,9 @@ public static function concat(array $tensors, int $axis = 0): Tensor
565566 public static function safeIndex (int $ index , int $ size , ?int $ axis = null ): int
566567 {
567568 if ($ index < -$ size || $ index >= $ size ) {
568- throw new InvalidArgumentException ("IndexError: index $ index is out of bounds for axis "
569- .($ axis === null ? '' : ' ' .$ axis )." with size $ size "
569+ throw new InvalidArgumentException (
570+ "IndexError: index $ index is out of bounds for axis "
571+ . ($ axis === null ? '' : ' ' . $ axis ) . " with size $ size "
570572 );
571573 }
572574
@@ -643,7 +645,7 @@ public function sigmoid(): self
643645 {
644646 $ mo = self ::mo ();
645647
646- $ ndArray = $ mo ->f (fn ($ x ) => 1 / (1 + exp (-$ x )), $ this );
648+ $ ndArray = $ mo ->f (fn ($ x ) => 1 / (1 + exp (-$ x )), $ this );
647649
648650 return new static ($ ndArray ->buffer (), $ ndArray ->dtype (), $ ndArray ->shape (), $ ndArray ->offset ());
649651 }
@@ -856,7 +858,7 @@ public function norm(int $ord = 2, ?int $axis = null, bool $keepShape = false):
856858 $ mo = self ::mo ();
857859
858860 if ($ axis === null ) {
859- $ val = pow (array_reduce ($ this ->toBufferArray (), fn ($ carry , $ item ) => $ carry + pow ($ item , $ ord ), 0 ), 1 / $ ord );
861+ $ val = pow (array_reduce ($ this ->toBufferArray (), fn ($ carry , $ item ) => $ carry + pow ($ item , $ ord ), 0 ), 1 / $ ord );
860862
861863 return new Tensor ([$ val ], $ this ->dtype (), []);
862864 }
@@ -918,7 +920,7 @@ public function clamp(float|int $min, float|int $max): static
918920 {
919921 $ mo = self ::mo ();
920922
921- $ result = $ mo ->f (fn ($ x ) => max ($ min , min ($ max , $ x )), $ this );
923+ $ result = $ mo ->f (fn ($ x ) => max ($ min , min ($ max , $ x )), $ this );
922924
923925 return new static ($ result ->buffer (), $ result ->dtype (), $ result ->shape (), $ result ->offset ());
924926 }
@@ -932,7 +934,7 @@ public function round(int $precision = 0): static
932934 {
933935 $ mo = self ::mo ();
934936
935- $ result = $ mo ->f (fn ($ x ) => round ($ x , $ precision ), $ this );
937+ $ result = $ mo ->f (fn ($ x ) => round ($ x , $ precision ), $ this );
936938
937939 return new static ($ result ->buffer (), $ result ->dtype (), $ result ->shape (), $ result ->offset ());
938940 }
@@ -1004,7 +1006,11 @@ public function stdMean(?int $axis = null, int $correction = 1, bool $keepShape
10041006 $ std = sqrt (
10051007 $ mo ->sum (
10061008 $ mo ->la ()->pow (
1007- $ mo ->la ()->increment ($ this , -$ mean ), 2 )) / ($ this ->size () - $ correction ));
1009+ $ mo ->la ()->increment ($ this , -$ mean ),
1010+ 2
1011+ )
1012+ ) / ($ this ->size () - $ correction )
1013+ );
10081014
10091015 return [$ std , $ mean ];
10101016 }
@@ -1127,14 +1133,12 @@ public function slice(...$slices): Tensor
11271133 // null or undefined means take the whole dimension
11281134 $ start [] = 0 ;
11291135 $ size [] = $ this ->shape ()[$ sliceIndex ];
1130-
11311136 } elseif (is_int ($ slice )) {
11321137 // An integer means take a single element
11331138 $ slice = $ this ->safeIndex ($ slice , $ this ->shape ()[$ sliceIndex ], $ sliceIndex );
11341139
11351140 $ start [] = $ slice ;
11361141 $ size [] = 1 ;
1137-
11381142 } elseif (is_array ($ slice ) && count ($ slice ) === 2 ) {
11391143 [$ first , $ second ] = $ slice ;
11401144
@@ -1146,14 +1150,13 @@ public function slice(...$slices): Tensor
11461150
11471151 // An array of length 2 means take a range of elements
11481152 if ($ first > $ second ) {
1149- throw new InvalidArgumentException ("Invalid slice: " . json_encode ($ slice ));
1153+ throw new InvalidArgumentException ("Invalid slice: " . json_encode ($ slice ));
11501154 }
11511155
11521156 $ start [] = $ first ;
11531157 $ size [] = $ second - $ first ;
1154-
11551158 } else {
1156- throw new InvalidArgumentException ("Invalid slice: " . json_encode ($ slice ));
1159+ throw new InvalidArgumentException ("Invalid slice: " . json_encode ($ slice ));
11571160 }
11581161 }
11591162
@@ -1330,7 +1333,7 @@ public function topk(int $k = -1, bool $sorted = true): array
13301333
13311334 if ($ sorted ) {
13321335 // Sort the heap to get the top k elements in descending order
1333- usort ($ heap , fn ($ a , $ b ) => $ b ['value ' ] <=> $ a ['value ' ]);
1336+ usort ($ heap , fn ($ a , $ b ) => $ b ['value ' ] <=> $ a ['value ' ]);
13341337 }
13351338
13361339 // Extract top K values and indices from the heap
@@ -1430,13 +1433,15 @@ public function offsetExists($offset): bool
14301433 return false ;
14311434
14321435 if (is_array ($ offset )) {
1433- if (count ($ offset ) != 2 ||
1436+ if (
1437+ count ($ offset ) != 2 ||
14341438 !array_key_exists (0 , $ offset ) || !array_key_exists (1 , $ offset ) ||
1435- $ offset [0 ] > $ offset [1 ]) {
1439+ $ offset [0 ] > $ offset [1 ]
1440+ ) {
14361441 $ det = '' ;
14371442 if (is_numeric ($ offset [0 ]) && is_numeric ($ offset [1 ]))
1438- $ det = ':[ ' . implode (', ' , $ offset ). '] ' ;
1439- throw new OutOfRangeException ("Illegal range specification. " . $ det );
1443+ $ det = ':[ ' . implode (', ' , $ offset ) . '] ' ;
1444+ throw new OutOfRangeException ("Illegal range specification. " . $ det );
14401445 }
14411446 $ start = $ offset [0 ];
14421447 $ limit = $ offset [1 ];
@@ -1451,8 +1456,8 @@ public function offsetExists($offset): bool
14511456 $ limit = $ offset ->limit ();
14521457 $ delta = $ offset ->delta ();
14531458 if ($ start >= $ limit || $ delta != 1 ) {
1454- $ det = ":[ $ start, $ limit " . (($ delta != 1 ) ? ", $ delta " : "" ). '] ' ;
1455- throw new OutOfRangeException ("Illegal range specification. " . $ det );
1459+ $ det = ":[ $ start, $ limit " . (($ delta != 1 ) ? ", $ delta " : "" ) . '] ' ;
1460+ throw new OutOfRangeException ("Illegal range specification. " . $ det );
14561461 }
14571462 } else {
14581463 throw new OutOfRangeException ("Dimension must be integer " );
@@ -1499,7 +1504,7 @@ public function offsetGet($offset): mixed
14991504 $ start = $ offset ->start ();
15001505 $ limit = $ offset ->limit ();
15011506 if ($ offset ->delta () != 1 ) {
1502- throw new OutOfRangeException ("Illegal range specification.:delta= " . $ offset ->delta ());
1507+ throw new OutOfRangeException ("Illegal range specification.:delta= " . $ offset ->delta ());
15031508 }
15041509 }
15051510
@@ -1516,8 +1521,12 @@ public function offsetGet($offset): mixed
15161521
15171522 array_unshift ($ shape , $ rowsCount );
15181523
1519- return new self ($ this ->buffer , $ this ->dtype ,
1520- $ shape , $ this ->offset + $ start * $ itemSize );
1524+ return new self (
1525+ $ this ->buffer ,
1526+ $ this ->dtype ,
1527+ $ shape ,
1528+ $ this ->offset + $ start * $ itemSize
1529+ );
15211530 }
15221531
15231532
@@ -1594,7 +1603,7 @@ public function setPortableSerializeMode(bool $mode): void
15941603
15951604 public function serialize (): ?string
15961605 {
1597- return static ::SERIALIZE_NDARRAY_KEYWORD . serialize ($ this ->__serialize ());
1606+ return static ::SERIALIZE_NDARRAY_KEYWORD . serialize ($ this ->__serialize ());
15981607 }
15991608
16001609 public function __serialize ()
@@ -1631,8 +1640,10 @@ public function unserialize($data): void
16311640 $ buffer = $ data ->buffer ();
16321641 if (get_class ($ data ->service ()) !== get_class (self ::service ())) {
16331642 $ newBuffer = self ::service ()->buffer ()->Buffer ($ buffer ->count (), $ buffer ->dtype ());
1634- if ($ data ->service ()->serviceLevel () >= Service::LV_ADVANCED &&
1635- self ::service ()->serviceLevel () >= Service::LV_ADVANCED ) {
1643+ if (
1644+ $ data ->service ()->serviceLevel () >= Service::LV_ADVANCED &&
1645+ self ::service ()->serviceLevel () >= Service::LV_ADVANCED
1646+ ) {
16361647 $ newBuffer ->load ($ buffer ->dump ());
16371648 } else {
16381649 $ count = $ buffer ->count ();
@@ -1666,15 +1677,16 @@ public function __unserialize($data)
16661677 $ this ->buffer [$ key ] = $ value ;
16671678 }
16681679 } else {
1669- throw new RuntimeException ('Illegal save mode: ' . $ mode );
1680+ throw new RuntimeException ('Illegal save mode: ' . $ mode );
16701681 }
16711682 }
16721683
16731684 public function __clone ()
16741685 {
16751686 if (self ::service ()->serviceLevel () >= Service::LV_ADVANCED ) {
16761687 $ newBuffer = self ::service ()->buffer ()->Buffer (
1677- count ($ this ->buffer ), $ this ->buffer ->dtype ()
1688+ count ($ this ->buffer ),
1689+ $ this ->buffer ->dtype ()
16781690 );
16791691
16801692 $ newBuffer ->load ($ this ->buffer ->dump ());
@@ -1683,8 +1695,7 @@ public function __clone()
16831695 } elseif (self ::service ()->serviceLevel () >= Service::LV_BASIC ) {
16841696 $ this ->buffer = clone $ this ->buffer ;
16851697 } else {
1686- throw new RuntimeException ('Unknown buffer type is uncloneable: ' . get_class ($ this ->buffer ));
1698+ throw new RuntimeException ('Unknown buffer type is uncloneable: ' . get_class ($ this ->buffer ));
16871699 }
16881700 }
1689-
16901701}
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