Php export CSV abstract class

PHP exports a CSV abstract class. The total number of records and the number of records per batch are calculated and exported cyclically. Avoid insufficient memory. Php exports a CSV abstract class. The total number of records and the number of records per batch are calculated and exported cyclically. Avoid insufficient memory.

ExportCSV. class. php

 0) {$ this-> pagesize = $ pagesize;}/** set the exported file name * @ param String $ filename */public function setExportName ($ filename) {if ($ filename! = '') {$ This-> exportName = $ filename;}/** set the separator * @ param String $ separator */public function setSeparator ($ separator) {if ($ separator! = '') {$ This-> separator = $ separator;}/** set the delimiter * @ param String $ delimiter */public function setDelimiter ($ delimiter) {if ($ delimiter! = '') {$ This-> delimiter = $ delimiter;}/** export csv */public function export () {// obtain the total number of records $ this-> total = $ this-> getExportTotal (); // if (! $ This-> total) {return false;} // calculate the total number of exported batches $ pagecount = $ this-> getPageCount (); // Get the exported column name $ fields = $ this-> getExportFields (); // Set the exported file header $ this-> setHeader (); // cyclically export for ($ I = 0; $ I <$ pagecount; $ I ++) {$ exportData = ''; if ($ I = 0) {// export the column name $ exportData before the first record. = $ this-> formatCSV ($ fields);} // sets the offset value $ offset = $ I * $ this-> pagesize; // Get the data per page $ data = $ this-> getExportData ($ offset, $ this-> pagesize); // Set the data per page Convert data to csv format if ($ data) {foreach ($ data as $ row) {$ exportData. = $ this-> formatCSV ($ row) ;}// export data echo $ exportData ;}/ ** calculate total batches */private function getPageCount () {$ pagecount = (int) ($ this-> total-1)/$ this-> pagesize) + 1; return $ pagecount ;} /** set the exported file header */private function setHeader () {header ('content-type: application/x-msexcel '); $ ua = $ _ SERVER ['http _ USER_AGENT ']; if (preg_match ("/MSIE/", $ ua)) {Header ('content-disposition: attachment; filename = "'. rawurlencode ($ this-> exportName ). '"');} elseif (preg_match ("/Firefox/", $ ua) {header (" content-disposition: attachment; filename * = \ "utf8 ''". $ this-> exportName. '"');} else {header ('content-disposition: attachment; filename = "'. $ this-> exportName. '"');} ob_end_flush (); ob_implicit_flush (true);}/** format data in csv format * @ param Array $ data to be converted to an Array in csv format */pri Vate function formatCSV ($ data = array () {// escape each element of the array $ data = array_map (array ($ this, 'Escape '), $ data ); return $ this-> delimiter. implode ($ this-> delimiter. $ this-> separator. $ this-> delimiter, $ data ). $ this-> delimiter. "\ r \ n";}/** escape String * @ param String $ str * @ return String */private function escape ($ str) {return str_replace ($ this-> delimiter, $ this-> delimiter. $ this-> delimiter, $ str) ;}// class end?>

Demo

 Data);}/** return the exported column name * @ return Array */protected function getExportFields () {$ title = array ('id', 'name ', 'gender'); return $ title ;} /* return records of each batch * @ param int $ offset * @ param int $ number of records obtained by limit * @ return Array */protected function getExportData ($ offset, $ limit) {return array_slice ($ this-> data, $ offset, $ limit) ;}// export $ obj = new myexport (); $ obj-> setPageSize (1 ); $ obj-> setExportName('myexport.csv '); $ Obj-> setSeparator (', '); $ obj-> setDelimiter (' "'); $ obj-> export ();?>

The above is the content of the CSV abstract class exported by php. For more information, see PHP Chinese website (www.php1.cn )!