PHP implementation of CSV file import and Export class _php tutorial

PHP implementation of CSV file import and Export classes

This article mainly introduces the PHP implementation of CSV file import and export classes, examples of PHP for CSV file operation skills, very practical value, the need for friends can refer to the following

This article describes the import and export classes of the PHP implementation csv file. Share to everyone for your reference. Specific 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 '); Assembly data foreach ($param _arr as $k = + $v) { foreach ($v as $k 1=> $v 1) { $export _str. = Implode (', ', $v 1). " n "; } } Export the $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 = ' not processed '; $filesize = 1; 1MB $maxsize = $filesize * 1024 * 1024; $max _column = 1000; Detects if a file exists if ($flag = = = Flase) { if (!file_exists ($path)) { $msg = ' file does not exist '; $flag = true; } } Detecting file formats if ($flag = = = Flase) { $ext = Preg_replace ("/.*." ( [^.] +)/"," $ ", $path); if ($ext! = ' csv ') { $msg = ' Import only csv format file '; $flag = true; } } Detecting File size if ($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 = ' file does not conform to specifications true to have: '. $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 Settings\administrator\temp\txxx.csv '; $import _arr = $csv->import ($path, 3); Var_dump ($import _arr); ?>

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