php-ds /
polyfill
| @@ 285-296 (lines=12) @@ | ||
| 282 | * |
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| 283 | * @return Map |
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| 284 | */ |
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| 285 | public function filter(callable $callback = null): Map |
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| 286 | { |
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| 287 | $filtered = new self(); |
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| 288 | ||
| 289 | foreach ($this as $key => $value) { |
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| 290 | if ($callback ? $callback($key, $value) : $value) { |
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| 291 | $filtered->put($key, $value); |
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| 292 | } |
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| 293 | } |
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| 294 | ||
| 295 | return $filtered; |
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| 296 | } |
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| 297 | ||
| 298 | /** |
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| 299 | * Returns the value associated with a key, or an optional default if the |
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| @@ 207-230 (lines=24) @@ | ||
| 204 | * |
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| 205 | * @return Set |
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| 206 | */ |
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| 207 | public function filter(callable $callback = null): Set |
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| 208 | { |
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| 209 | $filtered = new Set(); |
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| 210 | ||
| 211 | if ($callback) { |
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| 212 | ||
| 213 | // |
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| 214 | foreach ($this as $value) { |
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| 215 | if ($callback($value)) { |
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| 216 | $filtered->add($value); |
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| 217 | } |
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| 218 | } |
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| 219 | } else { |
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| 220 | ||
| 221 | // |
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| 222 | foreach ($this as $value) { |
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| 223 | if ($value) { |
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| 224 | $filtered->add($value); |
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| 225 | } |
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| 226 | } |
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| 227 | } |
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| 228 | ||
| 229 | return $filtered; |
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| 230 | } |
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| 231 | ||
| 232 | /** |
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| 233 | * Returns the first value in the set. |
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