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| 1 | <?php |
| 2 | /** |
| 3 | * Pop PHP Framework (http://www.popphp.org/) |
| 4 | * |
| 5 | * @link https://github.com/popphp/popphp-framework |
| 6 | * @author Nick Sagona, III <dev@nolainteractive.com> |
| 7 | * @copyright Copyright (c) 2009-2024 NOLA Interactive, LLC. (http://www.nolainteractive.com) |
| 8 | * @license http://www.popphp.org/license New BSD License |
| 9 | */ |
| 10 | |
| 11 | /** |
| 12 | * @namespace |
| 13 | */ |
| 14 | namespace Pop\Csv; |
| 15 | |
| 16 | /** |
| 17 | * CSV class |
| 18 | * |
| 19 | * @category Pop |
| 20 | * @package Pop\Csv |
| 21 | * @author Nick Sagona, III <dev@nolainteractive.com> |
| 22 | * @copyright Copyright (c) 2009-2024 NOLA Interactive, LLC. (http://www.nolainteractive.com) |
| 23 | * @license http://www.popphp.org/license New BSD License |
| 24 | * @version 4.0.0 |
| 25 | */ |
| 26 | class Csv |
| 27 | { |
| 28 | |
| 29 | /** |
| 30 | * CSV data in PHP |
| 31 | * @var mixed |
| 32 | */ |
| 33 | protected mixed $data = null; |
| 34 | |
| 35 | /** |
| 36 | * CSV string |
| 37 | * @var ?string |
| 38 | */ |
| 39 | protected ?string $string = null; |
| 40 | |
| 41 | /** |
| 42 | * Constructor |
| 43 | * |
| 44 | * Instantiate the Csv object. |
| 45 | * |
| 46 | * @param mixed $data |
| 47 | */ |
| 48 | public function __construct(mixed $data = null) |
| 49 | { |
| 50 | if ($data !== null) { |
| 51 | // If data is a file |
| 52 | if (is_string($data) && (stripos($data, '.csv') !== false) && file_exists($data)) { |
| 53 | $this->string = file_get_contents($data); |
| 54 | // Else, if it's just data |
| 55 | } else if (!is_string($data)) { |
| 56 | $this->data = $data; |
| 57 | // Else if it's a string or stream of data |
| 58 | } else { |
| 59 | $this->string = $data; |
| 60 | } |
| 61 | } |
| 62 | } |
| 63 | |
| 64 | /** |
| 65 | * Load CSV file |
| 66 | * |
| 67 | * @param string $file |
| 68 | * @param array $options |
| 69 | * @return Csv |
| 70 | */ |
| 71 | public static function loadFile(string $file, array $options = []): Csv |
| 72 | { |
| 73 | $csv = new self($file); |
| 74 | $csv->unserialize($options); |
| 75 | return $csv; |
| 76 | } |
| 77 | |
| 78 | /** |
| 79 | * Load CSV string |
| 80 | * |
| 81 | * @param string $string |
| 82 | * @param array $options |
| 83 | * @return Csv |
| 84 | */ |
| 85 | public static function loadString(string $string, array $options = []): Csv |
| 86 | { |
| 87 | $csv = new self($string); |
| 88 | $csv->unserialize($options); |
| 89 | return $csv; |
| 90 | } |
| 91 | |
| 92 | /** |
| 93 | * Load CSV data |
| 94 | * |
| 95 | * @param array $data |
| 96 | * @param array $options |
| 97 | * @return Csv |
| 98 | */ |
| 99 | public static function loadData(array $data, array $options = []): Csv |
| 100 | { |
| 101 | $csv = new self($data); |
| 102 | $csv->serialize($options); |
| 103 | return $csv; |
| 104 | } |
| 105 | |
| 106 | /** |
| 107 | * Load CSV file and get data |
| 108 | * |
| 109 | * @param string $file |
| 110 | * @param array $options |
| 111 | * @return array |
| 112 | */ |
| 113 | public static function getDataFromFile(string $file, array $options = []): array |
| 114 | { |
| 115 | $csv = new self($file); |
| 116 | return $csv->unserialize($options); |
| 117 | } |
| 118 | |
| 119 | /** |
| 120 | * Write data to file |
| 121 | * |
| 122 | * @param array $data |
| 123 | * @param string $to |
| 124 | * @param array $options |
| 125 | * @return void |
| 126 | */ |
| 127 | public static function writeDataToFile(array $data, string $to, array $options = []): void |
| 128 | { |
| 129 | $csv = new self($data); |
| 130 | $csv->serialize($options); |
| 131 | $csv->writeToFile($to); |
| 132 | } |
| 133 | |
| 134 | /** |
| 135 | * Write data to file |
| 136 | * |
| 137 | * @param array $data |
| 138 | * @param string $to |
| 139 | * @param string $delimiter |
| 140 | * @param array $omit |
| 141 | * @throws Exception |
| 142 | * @return void |
| 143 | */ |
| 144 | public static function writeTemplateToFile(array $data, string $to, string $delimiter = ',', array $omit = []): void |
| 145 | { |
| 146 | $csv = new self($data); |
| 147 | $csv->writeBlankFile($to, $delimiter, $omit); |
| 148 | } |
| 149 | |
| 150 | /** |
| 151 | * Write data to file |
| 152 | * |
| 153 | * @param array $data |
| 154 | * @param array $options |
| 155 | * @param string $filename |
| 156 | * @param bool $forceDownload |
| 157 | * @param array $headers |
| 158 | * @return void |
| 159 | */ |
| 160 | public static function outputDataToHttp( |
| 161 | array $data, array $options = [], string $filename = 'pop-data.csv', bool $forceDownload = true, array $headers = [] |
| 162 | ): void |
| 163 | { |
| 164 | $csv = new self($data); |
| 165 | $csv->serialize($options); |
| 166 | $csv->outputToHttp($filename, $forceDownload, $headers); |
| 167 | } |
| 168 | |
| 169 | /** |
| 170 | * Write data to file |
| 171 | * |
| 172 | * @param array $data |
| 173 | * @param string $filename |
| 174 | * @param bool $forceDownload |
| 175 | * @param array $headers |
| 176 | * @param string $delimiter |
| 177 | * @param array $omit |
| 178 | * @throws Exception |
| 179 | * @return void |
| 180 | */ |
| 181 | public static function outputTemplateToHttp( |
| 182 | array $data, string $filename = 'pop-data-template.csv', bool $forceDownload = true, |
| 183 | array $headers = [], string $delimiter = ',', array $omit = [] |
| 184 | ) |
| 185 | { |
| 186 | $csv = new self($data); |
| 187 | $csv->outputBlankFileToHttp($filename, $forceDownload, $headers, $delimiter, $omit); |
| 188 | } |
| 189 | |
| 190 | /** |
| 191 | * Process CSV options |
| 192 | * |
| 193 | * @param array $options |
| 194 | * @return array |
| 195 | */ |
| 196 | public static function processOptions(array $options): array |
| 197 | { |
| 198 | $options['delimiter'] = (isset($options['delimiter'])) ? $options['delimiter'] : ','; |
| 199 | $options['enclosure'] = (isset($options['enclosure'])) ? $options['enclosure'] : '"'; |
| 200 | $options['escape'] = (isset($options['escape'])) ? $options['escape'] : '"'; |
| 201 | $options['fields'] = (isset($options['fields'])) ? (bool)$options['fields'] : true; |
| 202 | $options['newline'] = (isset($options['newline'])) ? (bool)$options['newline'] : true; |
| 203 | $options['limit'] = (isset($options['limit'])) ? (int)$options['limit'] : 0; |
| 204 | |
| 205 | return $options; |
| 206 | } |
| 207 | |
| 208 | /** |
| 209 | * Serialize the data to a CSV string |
| 210 | * |
| 211 | * @param array $options |
| 212 | * @return string |
| 213 | */ |
| 214 | public function serialize(array $options = []): string |
| 215 | { |
| 216 | $this->string = self::serializeData($this->data, $options); |
| 217 | return $this->string; |
| 218 | } |
| 219 | |
| 220 | /** |
| 221 | * Unserialize the string to data |
| 222 | * |
| 223 | * @param array $options |
| 224 | * @return mixed |
| 225 | */ |
| 226 | public function unserialize(array $options = []): mixed |
| 227 | { |
| 228 | $this->data = self::unserializeString($this->string, $options); |
| 229 | return $this->data; |
| 230 | } |
| 231 | |
| 232 | /** |
| 233 | * Set data |
| 234 | * |
| 235 | * @param array $data |
| 236 | * @return Csv |
| 237 | */ |
| 238 | public function setData(array $data): Csv |
| 239 | { |
| 240 | $this->data = $data; |
| 241 | return $this; |
| 242 | } |
| 243 | |
| 244 | /** |
| 245 | * Get data |
| 246 | * |
| 247 | * @return array |
| 248 | */ |
| 249 | public function getData(): array |
| 250 | { |
| 251 | return $this->data; |
| 252 | } |
| 253 | |
| 254 | /** |
| 255 | * Set string |
| 256 | * |
| 257 | * @param string $string |
| 258 | * @return Csv |
| 259 | */ |
| 260 | public function setString(string $string): Csv |
| 261 | { |
| 262 | $this->string = $string; |
| 263 | return $this; |
| 264 | } |
| 265 | |
| 266 | /** |
| 267 | * Get string |
| 268 | * |
| 269 | * @return string |
| 270 | */ |
| 271 | public function getString(): string |
| 272 | { |
| 273 | return $this->string; |
| 274 | } |
| 275 | |
| 276 | /** |
| 277 | * Check if data was serialized |
| 278 | * |
| 279 | * @return bool |
| 280 | */ |
| 281 | public function isSerialized(): bool |
| 282 | { |
| 283 | return ($this->string !== null); |
| 284 | } |
| 285 | |
| 286 | /** |
| 287 | * Check if string was unserialized |
| 288 | * |
| 289 | * @return bool |
| 290 | */ |
| 291 | public function isUnserialized(): bool |
| 292 | { |
| 293 | return ($this->data !== null); |
| 294 | } |
| 295 | |
| 296 | /** |
| 297 | * Output CSV string data to HTTP |
| 298 | * |
| 299 | * @param string $filename |
| 300 | * @param bool $forceDownload |
| 301 | * @param array $headers |
| 302 | * @return void |
| 303 | */ |
| 304 | public function outputToHttp(string $filename = 'pop-data.csv', bool $forceDownload = true, array $headers = []): void |
| 305 | { |
| 306 | // Attempt to serialize data if it hasn't been done yet |
| 307 | if (($this->string === null) && ($this->data !== null)) { |
| 308 | $this->serialize(); |
| 309 | } |
| 310 | |
| 311 | $this->prepareHttp($filename, $forceDownload, $headers); |
| 312 | |
| 313 | echo $this->string; |
| 314 | } |
| 315 | |
| 316 | /** |
| 317 | * Output CSV headers only in a blank file to HTTP |
| 318 | * |
| 319 | * @param string $filename |
| 320 | * @param bool $forceDownload |
| 321 | * @param array $headers |
| 322 | * @param string $delimiter |
| 323 | * @param array $omit |
| 324 | * @throws Exception |
| 325 | * @return void |
| 326 | */ |
| 327 | public function outputBlankFileToHttp( |
| 328 | string $filename = 'pop-data.csv', bool $forceDownload = true, array $headers = [], string $delimiter = ',', array $omit = [] |
| 329 | ): void |
| 330 | { |
| 331 | // Attempt to serialize data if it hasn't been done yet |
| 332 | if (($this->string === null) && ($this->data !== null) && isset($this->data[0])) { |
| 333 | $fieldHeaders = self::getFieldHeaders($this->data[0], $delimiter, $omit); |
| 334 | } else { |
| 335 | throw new Exception('Error: The data has not been set.'); |
| 336 | } |
| 337 | |
| 338 | $this->prepareHttp($filename, $forceDownload, $headers); |
| 339 | echo $fieldHeaders; |
| 340 | } |
| 341 | |
| 342 | /** |
| 343 | * Prepare output to HTTP |
| 344 | * |
| 345 | * @param string $filename |
| 346 | * @param bool $forceDownload |
| 347 | * @param array $headers |
| 348 | * @return void |
| 349 | */ |
| 350 | public function prepareHttp(string $filename = 'pop-data.csv', bool $forceDownload = true, array $headers = []): void |
| 351 | { |
| 352 | if (!isset($headers['Content-Type'])) { |
| 353 | $headers['Content-Type'] = 'text/csv'; |
| 354 | } |
| 355 | if (!isset($headers['Content-Disposition'])) { |
| 356 | $headers['Content-Disposition'] = (($forceDownload) ? 'attachment; ' : null) . 'filename=' . $filename; |
| 357 | } |
| 358 | |
| 359 | // Send the headers and output the file |
| 360 | if (!headers_sent()) { |
| 361 | header('HTTP/1.1 200 OK'); |
| 362 | foreach ($headers as $name => $value) { |
| 363 | header($name . ': ' . $value); |
| 364 | } |
| 365 | } |
| 366 | } |
| 367 | |
| 368 | /** |
| 369 | * Output CSV data to a file |
| 370 | * |
| 371 | * @param string $to |
| 372 | * @return void |
| 373 | */ |
| 374 | public function writeToFile(string $to): void |
| 375 | { |
| 376 | // Attempt to serialize data if it hasn't been done yet |
| 377 | if (($this->string === null) && ($this->data !== null)) { |
| 378 | $this->serialize(); |
| 379 | } |
| 380 | |
| 381 | file_put_contents($to, $this->string); |
| 382 | } |
| 383 | |
| 384 | /** |
| 385 | * Output CSV headers only to a blank file |
| 386 | * |
| 387 | * @param string $to |
| 388 | * @param string $delimiter |
| 389 | * @param array $omit |
| 390 | * @throws Exception |
| 391 | * @return void |
| 392 | */ |
| 393 | public function writeBlankFile(string $to, string $delimiter = ',', array $omit = []): void |
| 394 | { |
| 395 | // Attempt to get field headers and output file |
| 396 | if (($this->string === null) && ($this->data !== null) && isset($this->data[0])) { |
| 397 | file_put_contents($to, self::getFieldHeaders($this->data[0], $delimiter, $omit)); |
| 398 | } else { |
| 399 | throw new Exception('Error: The data has not been set.'); |
| 400 | } |
| 401 | } |
| 402 | |
| 403 | /** |
| 404 | * Append additional CSV data to a pre-existing file |
| 405 | * |
| 406 | * @param string $file |
| 407 | * @param array $data |
| 408 | * @param array $options |
| 409 | * @param bool $validate |
| 410 | * @throws Exception |
| 411 | * @return void |
| 412 | */ |
| 413 | public static function appendDataToFile(string $file, array $data, array $options = [], bool $validate = true): void |
| 414 | { |
| 415 | if (!file_exists($file)) { |
| 416 | throw new Exception("Error: The file '" . $file . "' does not exist."); |
| 417 | } |
| 418 | |
| 419 | foreach ($data as $row) { |
| 420 | self::appendRowToFile($file, $row, $options, $validate); |
| 421 | } |
| 422 | } |
| 423 | |
| 424 | /** |
| 425 | * Append additional CSV row of data to a pre-existing file |
| 426 | * |
| 427 | * @param string $file |
| 428 | * @param array $row |
| 429 | * @param array $options |
| 430 | * @param bool $validate |
| 431 | * @throws Exception |
| 432 | * @return void |
| 433 | */ |
| 434 | public static function appendRowToFile(string $file, array $row, array $options = [], bool $validate = true): void |
| 435 | { |
| 436 | if (!file_exists($file)) { |
| 437 | throw new Exception("Error: The file '" . $file . "' does not exist."); |
| 438 | } |
| 439 | |
| 440 | if ($validate) { |
| 441 | $keys = array_keys($row); |
| 442 | $headers = array_map( |
| 443 | function($value) { return str_replace('"', '', $value); }, explode(',', trim(fgets(fopen($file, 'r')))) |
| 444 | ); |
| 445 | |
| 446 | if ($keys != $headers) { |
| 447 | throw new Exception("Error: The new data's columns do not match the CSV files columns."); |
| 448 | } |
| 449 | } |
| 450 | |
| 451 | $options = self::processOptions($options); |
| 452 | $csvRow = self::serializeRow( |
| 453 | (array)$row, [], $options['delimiter'], $options['enclosure'], |
| 454 | $options['escape'], $options['newline'], $options['limit'] |
| 455 | ); |
| 456 | |
| 457 | file_put_contents($file, $csvRow, FILE_APPEND); |
| 458 | } |
| 459 | |
| 460 | /** |
| 461 | * Convert the data into CSV format. |
| 462 | * |
| 463 | * @param mixed $data |
| 464 | * @param array $options |
| 465 | * @return string |
| 466 | */ |
| 467 | public static function serializeData(mixed $data, array $options = []): string |
| 468 | { |
| 469 | $keys = array_keys($data); |
| 470 | $isAssoc = false; |
| 471 | |
| 472 | foreach ($keys as $key) { |
| 473 | if (!is_numeric($key)) { |
| 474 | $isAssoc = true; |
| 475 | } |
| 476 | } |
| 477 | |
| 478 | if ($isAssoc) { |
| 479 | $newData = []; |
| 480 | foreach ($data as $key => $value) { |
| 481 | $newData = array_merge($newData, $value); |
| 482 | } |
| 483 | $data = $newData; |
| 484 | } |
| 485 | |
| 486 | if (isset($options['omit'])) { |
| 487 | $omit = (!is_array($options['omit'])) ? [$options['omit']] : $options['omit']; |
| 488 | } else { |
| 489 | $omit = []; |
| 490 | } |
| 491 | |
| 492 | $options = self::processOptions($options); |
| 493 | $csv = ''; |
| 494 | $firstKey = array_keys($data)[0]; |
| 495 | |
| 496 | if (is_array($data) && isset($data[$firstKey]) && |
| 497 | (is_array($data[$firstKey]) || ($data[$firstKey] instanceof \ArrayObject)) && ($options['fields'])) { |
| 498 | $csv .= self::getFieldHeaders((array)$data[$firstKey], $options['delimiter'], $omit); |
| 499 | } |
| 500 | |
| 501 | // Initialize and clean the field values. |
| 502 | foreach ($data as $value) { |
| 503 | $csv .= self::serializeRow( |
| 504 | (array)$value, $omit, $options['delimiter'], $options['enclosure'], |
| 505 | $options['escape'], $options['newline'], $options['limit'] |
| 506 | ); |
| 507 | } |
| 508 | |
| 509 | return $csv; |
| 510 | } |
| 511 | |
| 512 | /** |
| 513 | * Parse the CSV string into a PHP array |
| 514 | * |
| 515 | * @param string $string |
| 516 | * @param array $options |
| 517 | * @return array |
| 518 | */ |
| 519 | public static function unserializeString(string $string, array $options = []): array |
| 520 | { |
| 521 | $options = self::processOptions($options); |
| 522 | $lines = preg_split("/((\r?\n)|(\r\n?))/", $string); |
| 523 | $data = []; |
| 524 | $fieldKeys = []; |
| 525 | |
| 526 | $tempFile = sys_get_temp_dir() . DIRECTORY_SEPARATOR . 'pop-csv-tmp-' . time() . '.csv'; |
| 527 | file_put_contents($tempFile, $string); |
| 528 | |
| 529 | if ($options['fields']) { |
| 530 | $fieldNames = str_getcsv($lines[0], $options['delimiter'], $options['enclosure'], $options['escape']); |
| 531 | foreach ($fieldNames as $name) { |
| 532 | $fieldKeys[] = trim($name); |
| 533 | } |
| 534 | } |
| 535 | |
| 536 | if (($handle = fopen($tempFile, 'r')) !== false) { |
| 537 | while (($dataFields = fgetcsv($handle, 1000, $options['delimiter'], $options['enclosure'], $options['escape'])) !== false) { |
| 538 | if (($options['fields']) && (count($dataFields) == count($fieldKeys)) && ($dataFields != $fieldKeys)) { |
| 539 | $d = []; |
| 540 | foreach ($dataFields as $i => $value) { |
| 541 | $d[$fieldKeys[$i]] = $value; |
| 542 | } |
| 543 | $data[] = $d; |
| 544 | } else if ($dataFields != $fieldKeys) { |
| 545 | $data[] = $dataFields; |
| 546 | } |
| 547 | } |
| 548 | fclose($handle); |
| 549 | unlink($tempFile); |
| 550 | } |
| 551 | |
| 552 | return $data; |
| 553 | } |
| 554 | |
| 555 | /** |
| 556 | * Serialize single row of data |
| 557 | * |
| 558 | * @param array $value |
| 559 | * @param array $omit |
| 560 | * @param string $delimiter |
| 561 | * @param string $enclosure |
| 562 | * @param string $escape |
| 563 | * @param bool $newline |
| 564 | * @param int $limit |
| 565 | * @return string |
| 566 | */ |
| 567 | public static function serializeRow( |
| 568 | array $value, array $omit = [], string $delimiter = ',', string $enclosure = '"', |
| 569 | string $escape = '"', bool $newline = true, int $limit = 0 |
| 570 | ): string |
| 571 | { |
| 572 | $rowAry = []; |
| 573 | foreach ($value as $key => $val) { |
| 574 | if (!in_array($key, $omit)) { |
| 575 | if (!$newline) { |
| 576 | $val = str_replace(["\n", "\r"], [" ", " "], $val); |
| 577 | } |
| 578 | if ((int)$limit > 0) { |
| 579 | $val = substr($val, 0, (int)$limit); |
| 580 | } |
| 581 | if (str_contains($val, $enclosure)) { |
| 582 | $val = str_replace($enclosure, $escape . $enclosure, $val); |
| 583 | } |
| 584 | if ((str_contains($val, $delimiter)) || (str_contains($val, "\n")) || |
| 585 | (str_contains($val, $escape . $enclosure))) { |
| 586 | $val = $enclosure . $val . $enclosure; |
| 587 | } |
| 588 | $rowAry[] = $val; |
| 589 | } |
| 590 | } |
| 591 | return implode($delimiter, $rowAry) . "\n"; |
| 592 | } |
| 593 | |
| 594 | /** |
| 595 | * Get field headers |
| 596 | * |
| 597 | * @param mixed $data |
| 598 | * @param string $delimiter |
| 599 | * @param array $omit |
| 600 | * @return string |
| 601 | */ |
| 602 | public static function getFieldHeaders(mixed $data, string $delimiter = ',', array $omit = []): string |
| 603 | { |
| 604 | $headers = array_keys($data); |
| 605 | $headersAry = []; |
| 606 | foreach ($headers as $header) { |
| 607 | if (!in_array($header, $omit)) { |
| 608 | $headersAry[] = $header; |
| 609 | } |
| 610 | } |
| 611 | return implode($delimiter, $headersAry) . PHP_EOL; |
| 612 | } |
| 613 | |
| 614 | /** |
| 615 | * Determine if the string is valid CSV |
| 616 | * |
| 617 | * @param string $string |
| 618 | * @return bool |
| 619 | */ |
| 620 | public static function isValid(string $string): bool |
| 621 | { |
| 622 | $lines = preg_split("/((\r?\n)|(\r\n?))/", $string); |
| 623 | $fields = []; |
| 624 | if (isset($lines[0])) { |
| 625 | $fields = str_getcsv($lines[0]); |
| 626 | } |
| 627 | return (count($fields) > 0); |
| 628 | } |
| 629 | |
| 630 | /** |
| 631 | * Render CSV string data to string |
| 632 | * |
| 633 | * @return string |
| 634 | */ |
| 635 | public function __toString(): string |
| 636 | { |
| 637 | // Attempt to serialize data if it hasn't been done yet |
| 638 | if (($this->string === null) && ($this->data !== null)) { |
| 639 | $this->serialize(); |
| 640 | } |
| 641 | |
| 642 | return $this->string; |
| 643 | } |
| 644 | |
| 645 | } |