使用PHP将CSV / Excel导入MYSQL

Question

Have a bit of a problem with importing CSV/Excel into MYSQL and frankly not sure whether if this scenario is even possible? Sorry I don't have any code, I am just trying to get a grisp on how to do this.

Here's the drift: I have a table with 4 columns, id, userid, starttime, endtime. ID, is primary key. Starttime and Endtime are both stored as DATETIME. Example:

id    userid      starttime              endtime
1        3    2015-01-18 12:00:00  2015-01-18 16:00:00

I want to import a excel sheet that is laid out like this: http://tinypic.com/r/281lyd/8 (also, the start and end are columns in its own)

Questions:

1. Is this possible? If so, how?
2. If not, what are other alternative solutions to this problem? I need to somehow import weekly data into mysql database which is then outputted into a table online by week. (An admin would do this, but it should be effortless or time consuming.)

Answer 1

You can use EasyXLS library to import the Excel file. I don't know if you need to import xls or xlsx file, so my below source code is for xlsx. The code for xlsx file is similar. First you import the cell values into a list of rows and then insert the list values into MySQL database.

// Create an instance of the class that imports Excel files
$xls = new COM("EasyXLS.ExcelDocument");

// Import Excel file to List
$rows = $xls->easy_ReadXLSXSheet_AsList("Excel.xls", "Sheet1");

// Iterate List values
for ($rowIndex=0; $rowIndex<$rows->size(); $rowIndex++)
{
        $row = $rows->elementAt($rowIndex);
        for ($cellIndex=0; $cellIndex<$row->size(); $cellIndex++)
        {
            echo "At row ".($rowIndex + 1).", column ".($cellIndex + 1).
                        " the value is '".$row->elementAt($cellIndex)."'<br>";
            // SQL syntax to insert cell value into MySQL database: $row->elementAt($cellIndex)
            ...
        }
}

For more technical data, you may take a look at the following link: http://www.easyxls.com/manual/FAQ/import-excel-to-mysql.html

To insert the data into MySQL use a similiar syntax: http://www.w3schools.com/php/php_mysql_insert.asp

and use $row->elementAt($cellIndex) on VALUE section of the SQL syntax.

For importing the CSV file, you can use easy_ReadCSVFile_AsList in a similar way.

Answer 2

If you wanted to use a csv instead of a xls file you can do this you can put both the php script and the html form in one php file and it should do exactly what you need it to

php script

<?php
    session_start();

$message = null;

$allowed_extensions = array('csv');

$upload_path = 'uploadlocation';

if (!empty($_FILES['file'])) {

    if ($_FILES['file']['error'] == 0) {

        // check extension
        $file = explode(".", $_FILES['file']['name']);
        $extension = array_pop($file);

        if (in_array($extension, $allowed_extensions)) {

            if (move_uploaded_file($_FILES['file']['tmp_name'], $upload_path.'/'.$_FILES['file']['name'])) {

                if (($handle = fopen($upload_path.'/'.$_FILES['file']['name'], "r")) !== false) {

                    $keys = array();
                    $out = array();

                    $insert = array();

                    $line = 1;

                    while (($row = fgetcsv($handle, 0, ',', '"')) !== FALSE) {

                        foreach($row as $key => $value) {
                            if ($line === 1) {
                                $keys[$key] = $value;
                            } else {
                                $out[$line][$key] = $value;

                            }
                        }

                        $line++;

                    }

                    fclose($handle);    

                    if (!empty($keys) && !empty($out)) {

                        $db = new PDO('mysql:host=localhost;dbname=test', 'root', 'root');
                        $db->exec("SET CHARACTER SET utf8");

                        foreach($out as $key => $value) {

                            $sql  = "INSERT INTO wherever(`";
                            $sql .= implode("`, `", $keys);
                            $sql .= "`) VALUES (";
                            $sql .= implode(", ", array_fill(0, count($keys), "?"));
                            $sql .= ")";
                            $statement = $db->prepare($sql);
                            $statement->execute($value);

                        }

                        $message = '<span color="green">File has been uploaded successfully</span>';

                    }   

                }

            }

        } else {
            $message = '<span class="red">Only .csv file format is allowed</span>';
        }

    } else {
        $message = '<span class="red">There was a problem with your file</span>';
    }

}
?>

HTML Form

<table cellpadding="0" cellspacing="0" border="0" class="table">
    <tr>
        <C><label for="file">Select file</label> <?php echo $message; ?></th>
    </tr></h2>
    <tr>
        <td><input type="file" name="file" id="file" size="30" /></td>
    </tr>
    <tr>
        <td><input type="submit" id="btn" class="fl_l" value="Submit" /></td>
    </tr>
</table>

you need to layout your excel like your database table for this code to work and you need to change the login etc for the database. Since this is Dbo it should work with all databases or atleast most of them !. If you need any help comment below