Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
Complex classes like Html often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Html, and based on these observations, apply Extract Interface, too.
| 1 | <?php  | 
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| 27 | class Html  | 
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| 28 | { | 
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| 29 | use Macroable;  | 
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| 30 | |||
| 31 | /** @var \Illuminate\Http\Request */  | 
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| 32 | protected $request;  | 
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| 33 | |||
| 34 | /** @var \ArrayAccess|array */  | 
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| 35 | protected $model;  | 
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| 36 | |||
| 37 | public function __construct(Request $request)  | 
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| 41 | |||
| 42 | /**  | 
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| 43 | * @param string|null $href  | 
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| 44 | * @param string|null $text  | 
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| 45 | *  | 
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| 46 | * @return \Spatie\Html\Elements\A  | 
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| 47 | */  | 
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| 48 | public function a($href = null, $contents = null)  | 
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| 54 | |||
| 55 | /**  | 
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| 56 | * @param string|null $href  | 
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| 57 | * @param string|null $text  | 
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| 58 | *  | 
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| 59 | * @return \Spatie\Html\Elements\I  | 
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| 60 | */  | 
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| 61 | public function i($contents = null)  | 
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| 66 | |||
| 67 | /**  | 
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| 68 | * @param string|null $type  | 
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| 69 | * @param string|null $text  | 
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| 70 | *  | 
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| 71 | * @return \Spatie\Html\Elements\Button  | 
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| 72 | */  | 
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| 73 | public function button($contents = null, $type = null)  | 
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| 79 | |||
| 80 | /**  | 
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| 81 | * @param \Illuminate\Support\Collection|iterable|string $classes  | 
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| 82 | *  | 
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| 83 | * @return \Illuminate\Contracts\Support\Htmlable  | 
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| 84 | */  | 
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| 85 | public function class($classes): Htmlable  | 
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| 98 | |||
| 99 | /**  | 
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| 100 | * @param string|null $name  | 
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| 101 | * @param bool $checked  | 
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| 102 | * @param string|null $value  | 
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| 103 | *  | 
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| 104 | * @return \Spatie\Html\Elements\Input  | 
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| 105 | */  | 
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| 106 | public function checkbox($name = null, $checked = false, $value = '1')  | 
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| 115 | |||
| 116 | /**  | 
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| 117 | * @param \Spatie\Html\HtmlElement|string|null $contents  | 
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| 118 | *  | 
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| 119 | * @return \Spatie\Html\Elements\Div  | 
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| 120 | */  | 
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| 121 | public function div($contents = null)  | 
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| 125 | |||
| 126 | /**  | 
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| 127 | * @param string|null $name  | 
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| 128 | * @param string|null $value  | 
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| 129 | *  | 
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| 130 | * @return \Spatie\Html\Elements\Input  | 
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| 131 | */  | 
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| 132 | public function email($name = '', $value = '')  | 
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| 136 | |||
| 137 | /**  | 
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| 138 | * @param string|null $name  | 
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| 139 | * @param string|null $value  | 
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| 140 | *  | 
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| 141 | * @return \Spatie\Html\Elements\Input  | 
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| 142 | */  | 
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| 143 | public function date($name = '', $value = '')  | 
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| 147 | |||
| 148 | /**  | 
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| 149 | * @param string|null $name  | 
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| 150 | * @param string|null $value  | 
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| 151 | *  | 
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| 152 | * @return \Spatie\Html\Elements\Input  | 
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| 153 | */  | 
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| 154 | public function time($name = '', $value = '')  | 
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| 158 | |||
| 159 | /**  | 
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| 160 | * @param string $tag  | 
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| 161 | *  | 
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| 162 | * @return \Spatie\Html\Elements\Element  | 
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| 163 | */  | 
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| 164 | public function element($tag)  | 
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| 168 | |||
| 169 | /**  | 
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| 170 | * @param string|null $type  | 
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| 171 | * @param string|null $name  | 
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| 172 | * @param string|null $value  | 
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| 173 | *  | 
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| 174 | * @return \Spatie\Html\Elements\Input  | 
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| 175 | */  | 
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| 176 | public function input($type = null, $name = null, $value = null)  | 
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| 186 | |||
| 187 | /**  | 
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| 188 | * @param \Spatie\Html\HtmlElement|string|null $legend  | 
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| 189 | *  | 
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| 190 | * @return \Spatie\Html\Elements\Fieldset  | 
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| 191 | */  | 
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| 192 | public function fieldset($legend = null)  | 
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| 198 | |||
| 199 | /**  | 
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| 200 | * @param string $method  | 
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| 201 | * @param string|null $action  | 
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| 202 | *  | 
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| 203 | * @return \Spatie\Html\Elements\Form  | 
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| 204 | */  | 
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| 205 | public function form($method = 'POST', $action = null)  | 
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| 225 | |||
| 226 | /**  | 
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| 227 | * @param string|null $name  | 
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| 228 | * @param string|null $value  | 
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| 229 | *  | 
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| 230 | * @return \Spatie\Html\Elements\Input  | 
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| 231 | */  | 
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| 232 | public function hidden($name = null, $value = null)  | 
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| 236 | |||
| 237 | /**  | 
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| 238 | * @param string|null $src  | 
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| 239 | * @param string|null $alt  | 
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| 240 | *  | 
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| 241 | * @return \Spatie\Html\Elements\Img  | 
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| 242 | */  | 
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| 243 | public function img($src = null, $alt = null)  | 
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| 249 | |||
| 250 | /**  | 
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| 251 | * @param \Spatie\Html\HtmlElement|iterable|string|null $contents  | 
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| 252 | * @param string|null $for  | 
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| 253 | *  | 
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| 254 | * @return \Spatie\Html\Elements\Label  | 
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| 255 | */  | 
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| 256 | public function label($contents = null, $for = null)  | 
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| 262 | |||
| 263 | /**  | 
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| 264 | * @param \Spatie\Html\HtmlElement|string|null $contents  | 
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| 265 | *  | 
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| 266 | * @return \Spatie\Html\Elements\Legend  | 
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| 267 | */  | 
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| 268 | public function legend($contents = null)  | 
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| 272 | |||
| 273 | /**  | 
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| 274 | * @param string $email  | 
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| 275 | * @param string|null $text  | 
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| 276 | *  | 
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| 277 | * @return \Spatie\Html\Elements\A  | 
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| 278 | */  | 
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| 279 | public function mailto($email, $text = null)  | 
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| 283 | |||
| 284 | /**  | 
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| 285 | * @param string|null $name  | 
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| 286 | * @param iterable $options  | 
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| 287 | * @param string|iterable|null $value  | 
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| 288 | *  | 
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| 289 | * @return \Spatie\Html\Elements\Select  | 
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| 290 | */  | 
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| 291 | View Code Duplication | public function multiselect($name = null, $options = [], $value = null)  | 
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| 300 | |||
| 301 | /**  | 
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| 302 | * @param string|null $text  | 
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| 303 | * @param string|null $value  | 
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| 304 | * @param bool $selected  | 
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| 305 | *  | 
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| 306 | * @return \Spatie\Html\Elements\Option  | 
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| 307 | */  | 
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| 308 | public function option($text = null, $value = null, $selected = false)  | 
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| 315 | |||
| 316 | /**  | 
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| 317 | * @param string|null $value  | 
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| 318 | *  | 
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| 319 | * @return \Spatie\Html\Elements\Input  | 
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| 320 | */  | 
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| 321 | public function password($name = null)  | 
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| 325 | |||
| 326 | /**  | 
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| 327 | * @param string|null $name  | 
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| 328 | * @param bool $checked  | 
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| 329 | * @param string|null $value  | 
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| 330 | *  | 
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| 331 | * @return \Spatie\Html\Elements\Input  | 
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| 332 | */  | 
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| 333 | public function radio($name = null, $checked = false, $value = null)  | 
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| 338 | |||
| 339 | /**  | 
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| 340 | * @param string|null $name  | 
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| 341 | * @param iterable $options  | 
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| 342 | * @param string|iterable|null $value  | 
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| 343 | *  | 
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| 344 | * @return \Spatie\Html\Elements\Select  | 
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| 345 | */  | 
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| 346 | View Code Duplication | public function select($name = null, $options = [], $value = null)  | 
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| 354 | |||
| 355 | /**  | 
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| 356 | * @param \Spatie\Html\HtmlElement|string|null $contents  | 
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| 357 | *  | 
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| 358 | * @return \Spatie\Html\Elements\Span  | 
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| 359 | */  | 
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| 360 | public function span($contents = null)  | 
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| 364 | |||
| 365 | /**  | 
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| 366 | * @param string|null $text  | 
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| 367 | *  | 
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| 368 | * @return \Spatie\Html\Elements\Button  | 
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| 369 | */  | 
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| 370 | public function submit($text = null)  | 
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| 374 | |||
| 375 | /**  | 
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| 376 | * @param string|null $text  | 
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| 377 | *  | 
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| 378 | * @return \Spatie\Html\Elements\Button  | 
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| 379 | */  | 
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| 380 | public function reset($text = null)  | 
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| 384 | |||
| 385 | /**  | 
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| 386 | * @param string $number  | 
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| 387 | * @param string|null $text  | 
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| 388 | *  | 
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| 389 | * @return \Spatie\Html\Elements\A  | 
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| 390 | */  | 
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| 391 | public function tel($number, $text = null)  | 
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| 395 | |||
| 396 | /**  | 
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| 397 | * @param string|null $name  | 
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| 398 | * @param string|null $value  | 
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| 399 | *  | 
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| 400 | * @return \Spatie\Html\Elements\Input  | 
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| 401 | */  | 
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| 402 | public function text($name = null, $value = null)  | 
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| 406 | |||
| 407 | /**  | 
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| 408 | * @param string|null $name  | 
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| 409 | *  | 
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| 410 | * @return \Spatie\Html\Elements\File  | 
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| 411 | */  | 
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| 412 | public function file($name = null)  | 
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| 418 | |||
| 419 | /**  | 
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| 420 | * @param string|null $name  | 
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| 421 | * @param string|null $value  | 
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| 422 | *  | 
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| 423 | * @return \Spatie\Html\Elements\Textarea  | 
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| 424 | */  | 
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| 425 | public function textarea($name = null, $value = null)  | 
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| 432 | |||
| 433 | /**  | 
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| 434 | * @return \Spatie\Html\Elements\Input  | 
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| 435 | */  | 
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| 436 | public function token()  | 
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| 443 | |||
| 444 | /**  | 
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| 445 | * @param \ArrayAccess|array $model  | 
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| 446 | *  | 
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| 447 | * @return $this  | 
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| 448 | */  | 
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| 449 | public function model($model)  | 
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| 455 | |||
| 456 | /**  | 
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| 457 | * @param \ArrayAccess|array $model  | 
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| 458 | * @param string|null $method  | 
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| 459 | * @param string|null $action  | 
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| 460 | *  | 
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| 461 | * @return \Spatie\Html\Elements\Form  | 
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| 462 | */  | 
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| 463 | public function modelForm($model, $method = 'POST', $action = null): Form  | 
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| 469 | |||
| 470 | /**  | 
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| 471 | * @return $this  | 
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| 472 | */  | 
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| 473 | public function endModel()  | 
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| 479 | |||
| 480 | /**  | 
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| 481 | * @return \Illuminate\Contracts\Support\Htmlable  | 
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| 482 | */  | 
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| 483 | public function closeModelForm(): Htmlable  | 
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| 489 | |||
| 490 | /**  | 
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| 491 | * @param string $name  | 
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| 492 | * @param mixed $value  | 
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| 493 | *  | 
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| 494 | * @return mixed  | 
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| 495 | */  | 
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| 496 | protected function old($name, $value = null)  | 
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| 513 | |||
| 514 | /**  | 
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| 515 | * Retrieve the value from the current session or assigned model. This is  | 
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| 516 | * a public alias for `old`.  | 
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| 517 | *  | 
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| 518 | * @param string $name  | 
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| 519 | * @param mixed $value  | 
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| 520 | *  | 
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| 521 | * @return mixed  | 
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| 522 | */  | 
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| 523 | public function value($name, $default = null)  | 
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| 527 | |||
| 528 | /**  | 
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| 529 | * @param string $name  | 
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| 530 | *  | 
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| 531 | * @return string  | 
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| 532 | */  | 
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| 533 | protected function fieldName($name)  | 
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| 537 | |||
| 538 | protected function ensureModelIsAvailable()  | 
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| 544 | }  | 
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| 545 |