Excel date is changed to different date in mysql - php

Question

I am trying to import the excel file to mysql database. I have got date and IMEI field in excel to import to database. But while importing to database my date is changd to different date and IMEI no is changed to exponential format. How can I resolve that problem.
here is the picture.
And here is the code.
<?php
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "portal";
//$exceldata = array();
// Create connection
$con = mysqli_connect($servername, $username, $password, $dbname);
// Check connection
if (!$con) {
die("Connection failed: " . mysqli_connect_error());
}
/** Set default timezone (will throw a notice otherwise) */
date_default_timezone_set('Asia/Kolkata');
include 'Classes2/PHPExcel/IOFactory.php';
if(isset($_FILES['file']['name'])){
// $file_name = $_FILES['file']['name'];
// $ext = pathinfo($file_name, PATHINFO_EXTENSION);
//Checking the file extension
$file_name = $_FILES['file']['tmp_name'];
$inputFileName = $file_name;
if(is_uploaded_file($inputFileName)){
// Read your Excel workbook
try {
$inputFileType = PHPExcel_IOFactory::identify($inputFileName);
$objReader = PHPExcel_IOFactory::createReader($inputFileType);
$objPHPExcel = $objReader->load($inputFileName);
} catch (Exception $e) {
die('Error loading file "' . pathinfo($inputFileName, PATHINFO_BASENAME)
. '": ' . $e->getMessage());
}
//Table used to display the contents of the file
echo '<center><table style="width:50%;" border=1>';
// Get worksheet dimensions
$sheet = $objPHPExcel->getSheet(0);
$highestRow = $sheet->getHighestRow();
$highestColumn = $sheet->getHighestColumn();
// Loop through each row of the worksheet in turn
for ($row = 2; $row <= $highestRow; $row++) {
// Read a row of data into an array
$rowData = $sheet->rangeToArray('A' . $row . ':' . $highestColumn . $row,
NULL, TRUE, FALSE);
//check whether member already exists in database with same email
$prevQuery = "SELECT id FROM activereport WHERE aIMEI = '".$rowData[0][1]."' ";
// $prevResult = $con->query($prevQuery);
$prevResult = mysqli_query($con,$prevQuery);
$count = mysqli_num_rows($prevResult);
if($count > 0){
// //update member data
$sql = " UPDATE activereport SET modelno= '".$rowData[0][0]."', dateOfActivation='" . $rowData[0][2] . "' WHERE aIMEI = '" .$rowData[0][1]."' ";
}
else{
$sql = " INSERT INTO activereport (modelno, aIMEI, dateOfActivation) VALUES ('".$rowData[0][0]."','".$rowData[0][1]."','".$rowData[0][2]."')";
}
if (mysqli_query($con, $sql)) {
$exceldata[] = $rowData[0];
} else {
echo "Error: " . $sql . "<br>" . mysqli_error($con);
}
}
echo '</table></center>';
//redirect to the listing page
header("Location: Import_Active_Data.php");
}
else{
echo '<p style="color:red;">Please upload valid</p>';
}
}
?>

Answer 1

One reason for this behavior could be the way excel stores dates: by counting the days since Jan 1, 1900. if you pass that as an argument to your sql query, it could do weird things.
Try converting the excel date to a string first and pass that to the sql query.
So, I'd change this block:
if($count > 0){
// //update member data
$sql = " UPDATE activereport SET modelno= '".$rowData[0][0]."', dateOfActivation='" . $rowData[0][2] . "' WHERE aIMEI = '" .$rowData[0][1]."' ";
}
else{
$sql = " INSERT INTO activereport (modelno, aIMEI, dateOfActivation) VALUES ('".$rowData[0][0]."','".$rowData[0][1]."','".$rowData[0][2]."')";
}
into this:
if($count > 0){
// Date-to-string conversion start
$exceldate = $rowData[0][2];
$phpdate = new DateTime();
$phpdate->setDate(1899, 12, 30);
$dateint = new DateInterval("P" . $exceldate . "D");
$phpdate->add($dateint);
$datestring = $phpdate->format("Y-m-d");
// Date-to-string conversion end
// //update member data
$sql = " UPDATE activereport SET modelno= '".$rowData[0][0]."', dateOfActivation='" . $datestring . "' WHERE aIMEI = '" .$rowData[0][1]."' ";
}
else{
$sql = " INSERT INTO activereport (modelno, aIMEI, dateOfActivation) VALUES ('".$rowData[0][0]."','".$rowData[0][1]."','".$datestring."')";
}
Instead of using the rowData[0][2] directly, this will convert the value of that Excel cell (2017-11-11 = 43050) into a php-string ('2017-11-11'), which you can then pass to the sql query.