The example in this article describes the import and export classes of CSV files implemented in PHP. Share it with everyone for your reference. The details are as follows:
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/** * CSV file processing class */ class Csv{ public $csv_array; //csv array data public $csv_str; //csv file data public function __construct($param_arr, $column){ $this->csv_array = $param_arr; $this->path = $path; $this->column = $column; } /** * Export **/ public function export(){ if(empty($this->csv_array) || empty($this->column)){ return false; } $param_arr = $this->csv_array; unset($this->csv_array); $export_str = implode(',',$param_arr['nav'])."n"; unset($param_arr['nav']); //Assemble data foreach($param_arr as $k=>$v){ foreach($v as $k1=>$v1){ $export_str .= implode(',',$v1)."n"; } } //Export $export_str header( "Cache-Control: public" ); header( "Pragma: public" ); header("Content-type:application/vnd.ms-excel"); header("Content-Disposition:attachment;filename=txxx.csv"); header('Content-Type:APPLICATION/OCTET-STREAM'); ob_start(); // $file_str= iconv("utf-8",'gbk',$export_str); ob_end_clean(); echo $export_str; } /** * import * */ public function import($path,$column = 3){ $flag = flase; $code = 0; $msg = 'Unprocessed'; $filesize = 1; //1MB $maxsize = $filesize * 1024 * 1024; $max_column = 1000;
//Check whether the file exists if($flag === flase){ if(!file_exists($path)){ $msg = 'File does not exist'; $flag = true; } } //Detect file format if($flag === flase){ $ext = preg_replace("/.*.([^.] )/","$1",$path); if($ext != 'csv'){ $msg = 'Only CSV format files can be imported'; $flag = true; } } //Detect file size if($flag === flase){ if(filesize($path)>$maxsize){ $msg = 'The imported file must not exceed'.$maxsize.'B file'; $flag = true; } } //Read file if($flag == flase){ $row = 0; $handle = fopen($path,'r'); $dataArray = array(); while($data = fgetcsv($handle,$max_column,",")){ $num = count($data); if($num < $column){ $msg = 'The file does not meet the specifications and actually contains: '.$num.' column data'; $flag = true; break; } if($flag === flase){ for($i=0;$i<3;$i ){ if($row == 0){ break; } //Build data $dataArray[$row][$i] = $data[$i]; } } $row ; } } return $dataArray; } } $param_arr = array( 'nav'=>array('username','password','email'), array(0=>array('xiaohai1','123456','xiaohai1@zhongsou.com'), 1=>array('xiaohai2','213456','xiaohai2@zhongsou.com'), 2=>array('xiaohai3','123456','xiaohai3@zhongsou.com') )); $column = 3; $csv = new Csv($param_arr, $column); //$csv->export(); $path = 'C:Documents and SettingsAdministratorTemptxxx.csv'; $import_arr = $csv->import($path,3); var_dump($import_arr); ?> |
I hope this article will be helpful to everyone’s PHP programming design.
