Example of PHP exporting from a database to a. csv file

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PHP implementation export from database to. csv file method

Implementation code:

Public Function Export () {//Get data from the database, in order to save memory, do not read the data one time to memory, the subordinate handle in a row to read//output Excel file header, you can change the user.csv to the file name header (' Content-type:application/vnd.ms-excel '); Header (' content-disposition:attachment;filename= ' order.csv "'); Header (' cache-control:max-age=0 '); $where =array ("Paid" =>1, "Pay_type" =>array ("NEQ", "Offline"), "status" =>array ("LT", 3),); $stmt = M ("Group_order")->field ("Order_id,order_name,num,price,total_money,contact_name,phone,zipcode,adress, Wx_cheap,balance_pay,payment_money,tuan_type,pay_time,pay_type,third_id,is_mobile_pay,paid,status ")->where (   $where)->order ("order_id DESC")->limit (+)->select (); Open the PHP file handle, php://output indicates the direct output to the browser $fp = fopen (' php://output ', ' a '); Output Excel column name information $head = Array ("Order number", "Order name", "Purchase Quantity", "Unit Price", "Total Price", "Contact name", "Contact phone", "Postal Code", "Detailed address", "preferential amount", "Balance payment amount", "Real payment amount", " Type of sale (2 in kind) "," Payment Time "," Payment type "," third party payment ID "," whether the phone is paid "," whether payment "," Order Status "); foreach ($head as $i = + $v) {//CSV Excel supports GBK encoding, be sure to convert otherwise garbled $head [$i] = iconv (' utf-8 ', ' GBK ', $v);}Writes data through Fputcsv to the file handle Fputcsv ($FP, $head); Counter $cnt = 0; Every $limit line, refresh the output buffer, not too big, not too small $limit = 500; Data is fetched row by line without wasting memory $count = count ($stmt);   for ($t =0; $t < $count; $t + +) {$cnt + +, if ($limit = = $cnt) {//Refresh output buffer to prevent problems caused by too much data ob_flush ();   Flush (); $cnt = 0;  } $row = $stmt [$t];foreach ($row as $i + = $v) {if ($i = = ' Pay_time ') {$v =date ("Y-m-d,h:i:s", $v); } $row [$i] = iconv (' utf-8 ', ' GBK ', $v); } fputcsv ($fp, $row); } fclose ($FP); }