80 lines
1.9 KiB
PHP
80 lines
1.9 KiB
PHP
<?php
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class testDataFileIterator implements Iterator
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{
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protected $file;
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protected $key = 0;
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protected $current;
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public function __construct($file)
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{
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$this->file = fopen($file, 'r');
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}
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public function __destruct()
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{
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fclose($this->file);
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}
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public function rewind()
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{
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rewind($this->file);
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$this->current = $this->_parseNextDataset();
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$this->key = 0;
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}
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public function valid()
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{
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return !feof($this->file);
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}
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public function key()
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{
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return $this->key;
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}
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public function current()
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{
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return $this->current;
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}
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public function next()
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{
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$this->current = $this->_parseNextDataset();
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$this->key++;
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}
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private function _parseNextDataset()
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{
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$dataSet = explode(',',trim(fgets($this->file)));
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foreach($dataSet as &$dataValue) {
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if (!is_numeric($dataValue)) {
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if($dataValue == '') {
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$dataValue = NULL;
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} elseif($dataValue == '""') {
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$dataValue = '';
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} elseif(($dataValue[0] == '"') && ($dataValue[strlen($dataValue)-1] == '"')) {
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$dataValue = substr($dataValue,1,-1);
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} else {
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switch (strtoupper($dataValue)) {
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case 'NULL' : $dataValue = NULL; break;
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case 'TRUE' : $dataValue = TRUE; break;
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case 'FALSE' : $dataValue = FALSE; break;
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}
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}
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} else {
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if (is_float($dataValue)) {
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$dataValue = (float) $dataValue;
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} else {
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$dataValue = (int) $dataValue;
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}
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}
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}
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unset($dataValue);
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return $dataSet;
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}
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}
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