我在导入超过 1,00,000 行的 CSV 文件时遇到问题。我fgetcsv
用于从 CSV 文件中获取数据。
我的要求是首先截断表,从 CSV 文件中获取数据并将其存储在数据库中。但每次它只获取 40000 到 50000 行。谁能建议我这是什么问题?我的代码如下,
$destination = realpath('../../admin/webroot/');
$originalPath = $destination."/".$this->request->data['Importmodel']['importfile'];
# Get Table Fields
$tableFields = ClassRegistry::init('Systemoption')->getTableDetails($this->request->data['Importmodel']['modeloptions']);
ClassRegistry::init($this->request->data['Importmodel']['modeloptions'])->query("TRUNCATE TABLE " . $this->request->data['Importmodel']['modeloptions']);
$row = 1;
if(($handle = fopen($originalPath, "r")) !== false) {
try {
while (($data = fgetcsv($handle, 0, "|")) !== false) {
$num = count($data);
if($num != (count($tableFields) - 1)) {
unlink($originalPath);
$this->Session->setFlash("Table \"".$this->request->data['Importmodel']['modeloptions']."\" fields and \"".$fileName."\" fields does not match", 'default', array('class'=>'flash_bad'));
$this->redirect(array('action' => 'index'));
exit;
}
$queryData = array();
for ($c=0; $c < $num; $c++) {
$queryData[$this->request->data['Importmodel']['modeloptions']][$tableFields[$c+1]] = $data[$c];
}
ClassRegistry::init($this->request->data['Importmodel']['modeloptions'])->create();
ClassRegistry::init($this->request->data['Importmodel']['modeloptions'])->save($queryData);
$row++;
}
$result = 1;
} catch (Exception $e) {
$result = 0;
}
}
if($result == 1) {
unlink($originalPath);
$this->Session->setFlash("Table \"" . $this->request->data['Importmodel']['modeloptions'] . "\" data populated successfully", 'default', array('class'=>'flash_good'));
$this->redirect(array('action' => 'index'));
exit;
} else {
$this->Session->setFlash("Error : Table \"" . $this->request->data['Importmodel']['modeloptions'] . "\" data not fully populated", 'default', array('class'=>'flash_bad'));
$this->redirect(array('action' => 'index'));
exit;
}