Mysql converting multiple insert statements into one - php

Question

I have a script to upoad an excel file and insert data from the xlsx file to a mysql table . It is like this
<?php
require_once('Connections/met.php');
$file = './uploads/windrose_data.xlsx';
if (move_uploaded_file($_FILES['uploadfile']['tmp_name'], $file)) {
$msg="File upload successful";
$db=mysql_select_db($database_met,$met);
set_include_path(get_include_path() . PATH_SEPARATOR . 'Classes/');
include 'PHPExcel/IOFactory.php';
// This is the file path to be uploaded.
$inputFileName = $file;
try {
$objPHPExcel = PHPExcel_IOFactory::load($inputFileName);
} catch(Exception $e) {
die('Error loading file "'.pathinfo($inputFileName,PATHINFO_BASENAME).'": '.$e->getMessage());
}
$allDataInSheet = $objPHPExcel->getActiveSheet()->toArray(null,true,true,true);
$arrayCount = count($allDataInSheet); // Here get total count of row in that Excel sheet
for($i=2;$i<=$arrayCount;$i++){
$date = trim($allDataInSheet[$i]["A"]);
$time = trim($allDataInSheet[$i]["B"]);
$dir = trim($allDataInSheet[$i]["C"]);
$spd = trim($allDataInSheet[$i]["D"]);
$insertTable= mysql_query("insert into wr_copy (date,time,dir,spd) values('$date', '$time',$dir,$spd)") or die(mysql_error());
$msg=$i-1." records inserted into the table";
}
echo $msg;
} else {
echo "Upload Failed";
}
?>
here for each row in excel one insert statement is executed., then I am sending a response using the iteration variable as the number of records inserted. There are two issues, one, I want to use a single insert statement which can be used for inserting all the rows in excel. second issue is using iterating variable values as no. of records can be a problem because, the query may not execute if there is any error in data. Can anybody suggest a work around for this?

Answer 1

For creating the one statement:
$statement = 'insert into wr_copy (date,time,dir,spd) values';
$values = [];
for($i=2;$i<=$arrayCount;$i++){
$date = trim($allDataInSheet[$i]["A"]);
$time = trim($allDataInSheet[$i]["B"]);
$dir = trim($allDataInSheet[$i]["C"]);
$spd = trim($allDataInSheet[$i]["D"]);
$values[] = "('$date', '$time',$dir,$spd)";
}
$statement .= implode(',',$values);
To get the real numbers of records that are inserted (i copied the example from here and change it):
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
/* prepare statement */
if ($stmt = $mysqli->prepare($statement)) {
/* execute statement */
$stmt->execute();
printf("rows inserted: %d\n", $stmt->affected_rows);
/* close statement */
$stmt->close();
}
/* close connection */
$mysqli->close();
?>