File: FileIterator53.php Lines 6 to 47 |
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6 | * |
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7 | * php-5.5以降であればGeneratorを使った方がパフォーマンスがよい。 |
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8 | * 5.5.11以降であればSplFileObjectもバイナリファイルに対応されている。 |
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9 | * |
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10 | * @uses >= php-5.3 |
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11 | * @version 0.1.0 |
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12 | */ |
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13 | abstract class FileIterator53 implements \Iterator { |
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14 | /** @var resource */ |
| | protected $fp; |
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16 | /** @var scalar */ |
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17 | protected $_key; |
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18 | /** @var mixed */ |
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19 | protected $buf; |
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20 | |
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21 | /** |
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22 | * @param resource $fp |
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23 | */ |
| | public function __construct($fp) { |
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25 | if(!is_resource($fp)) { |
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26 | throw new \InvalidArgumentException(); |
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27 | } |
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28 | $this->fp = $fp; |
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29 | } |
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30 | |
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31 | /** |
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32 | * @param string $fullpath |
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33 | * @param string $mode |
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34 | * @return static |
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35 | */ |
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36 | static public function createByPath($fullpath, $mode='rb') { |
| | $fp = @fopen($fullpath, $mode); |
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38 | if(!is_resource($fp)) { |
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39 | throw new \RuntimeException("cannot open stream: $fullpath"); |
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40 | } |
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41 | return new static($fp); |
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42 | } |
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43 | |
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44 | public function __destruct() { |
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45 | @fclose($this->fp); |
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46 | } |
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47 | |
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