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<?php |
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namespace Palmtree\Csv; |
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/** |
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* Writes an array to a CSV file. |
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*/ |
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class Writer extends AbstractCsvDocument |
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{ |
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/** @var array */ |
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private $headers = []; |
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public static function write(string $filePath, array $data): void |
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{ |
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$writer = new self($filePath); |
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$writer->setData($data); |
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$writer->closeDocument(); |
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} |
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/** |
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* Sets headers and all rows on the CSV file and |
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* then closes the file handle. |
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* |
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* Uses the first row's keys as headers. |
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*/ |
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public function setData(array $data): self |
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{ |
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if ($this->hasHeaders) { |
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$this->setHeaders(array_keys(reset($data))); |
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} |
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$this->addRows($data); |
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return $this; |
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} |
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public function setHeaders(array $headers): self |
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{ |
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$this->headers = $headers; |
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$this->addRow($this->headers); |
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return $this; |
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} |
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public function addHeader(string $header): self |
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{ |
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$headers = $this->headers; |
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$headers[] = $header; |
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$this->setHeaders($headers); |
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return $this; |
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} |
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/** |
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* Adds multiple rows of data to the CSV file. |
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*/ |
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public function addRows(array $rows): void |
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{ |
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foreach ($rows as $row) { |
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$this->addRow($row); |
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} |
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} |
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/** |
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* Adds a row of data to the CSV file. |
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* |
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* @param array $row Row of data to add to the file. |
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* |
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* @return bool Whether the row was written to the file. |
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*/ |
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public function addRow(array $row): bool |
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{ |
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if ($this->hasHeaders && empty($this->headers)) { |
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$this->setHeaders(array_keys($row)); |
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} |
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$result = $this->getDocument()->fwriteCsv($row); |
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if ($result === 0) { |
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// @todo: handle error |
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return false; |
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} |
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return true; |
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} |
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public function getContents(): string |
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{ |
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$this->getDocument()->trimFinalLineEnding(); |
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if (($size = $this->getDocument()->getSize()) === 0) { |
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return ''; |
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} |
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$this->getDocument()->fseek(0); |
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if (($data = $this->getDocument()->fread($size)) === false) { |
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return ''; |
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} |
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return $data; |
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} |
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protected function getOpenMode(): string |
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{ |
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return 'w+'; |
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} |
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} |
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palmtreephp /
csv
