通过php将csv文件上传到mysql

Question

i know how to upload a csv file into mysql database but only through cmd. i want to know how to upload csv file into mysql database using php form and will disregard some information on the excel and will only start importing starting from a certain line. ? kindly help me.

Answer 1

(PHP 4, PHP 5)

fgetcsv

See php manual http://php.net/manual/en/function.fgetcsv.php

<?php
$row = 1;
if (($handle = fopen("test.csv", "r")) !== FALSE) {
    while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
        $num = count($data);
        echo "<p> $num fields in line $row: <br /></p>\n";
        $row++;
        for ($c=0; $c < $num; $c++) {
            echo $data[$c] . "<br />\n";
        }
    }
    fclose($handle);
}
?>

Answer 2

Try this it's working well, you can add as many values as possible depending on the number of columns you have in the CSV file. Then in the HTML code put the uploading syntax in the tag.

**

$fname = $_FILES['csv_file']['name'];     
$chk_ext = explode(".",$fname);             

        $filename = $_FILES['csv_file']['tmp_     name'];   
$handle = fopen($filename, "r");      
if(!$handle){
die ('Cannot open file for reading');
}      
              while (($data = fgetcsv($handle,     10000, ",")) !== FALSE)
{
          $query = "INSERT INTO tablename       (col1_csv, col2_csv)
values ('$data[0]', '$data[1]');
mysql_query($query) or die(mysql_error    ());
}
 fclose($handle);
?>

**

Answer 3

You can use the MySQL LOAD DATA INFILE statement to bulk-insert thousands of records at once. PHP can handle the file upload. The PHP code would be something similar to:

$query = sprintf("
    LOAD DATA LOCAL INFILE '%s'
    INTO TABLE `table1`
    FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '\"'
    LINES TERMINATED BY '\\r\\n'
    IGNORE 1 LINES
    ",
    mysql_real_escape_string($FILES["file1"]["tmp_name"])
);

The LOCAL keyword should allow you to workaround some security restrictions. Change the FIELDS TERMINATED BY and LINES TERMINATED BY parameter to match the separators used by excel while exporting. IGNORE 1 LINES tells MySQL to skip the header row(s).

Note: Excel does not seem to use an escape character; but it will (i) enclose the fields that contain , and " with " (ii) use "" to escape a single " inside data. I believe MySQL will understand this encoding and import the data correctly.

Answer 4

try this:

 $filename=$_FILES["upload_file"]["name"];
 $extension = end(explode(".",$filename));
 if ($extension=='csv') {
     $tmp_file=$_FILES["upload_file"]["tmp_name"];
     $handle = @fopen($tmp_file, "r");
     //specify your own database connection parameter
     $db = new PDO('mysql:host=localhost;dbname=demo','user','password');
     $stmt = $db->prepare("INSERT INTO writers (writer_name, writer_email) VALUES (?, ?)");
     if ($handle) {
        while (($buffer = fgets($handle, 4096)) !== false) {
            $array=explode(",",$buffer);
            $count=1;
            foreach ($array as $value) {
                $stmt->bindParam($count, $value);
                $count++;
            }
            $stmt->execute();
        }
        if (!feof($handle)) {
            echo "Error: unexpected fgets() fail\n";
        }
        fclose($handle);
        }
        $db = null;
        echo "<p>Success</p>";
    }
    else {
        $error="<p style='color:red;'>Invalid file type</p>";
    }

Refer to http://pradipchitrakar.com.np/programming/upload-csv-mysql-php/

Answer 5

您可以使用“LOAD DATA INFILE”语句和“IGNORE ... LINES”选项，您可以从命令行以及PHP中使用该选项。