How To Export MySql To CSV

What Will I Learn?

In this tutorial, I will explain you How To Export MySql To CSV very easily.

Requirements

MySql Server

Difficulty

Intermediate

Tutorial Contents

1. Assigning the Mysql database & table
2. Creating the connection to the Mysql database-export.php
3. Creating 'exportMysqlToCsv' function-exportMysqlToCsv.inc.php

In most of project mostly clients wants to export their database in to CSV / Eecel file. It will help us to make a simple record or in future we can also import the same data in to MySql database.

In this tutorial, I will explain you How To Export MySql To CSV very easily. 

Export MySql To CSV

 

STEP 1:Assigning  the Mysql database & table.

• $host: Hostname or an ip adress. it is usualy localhost.
• $db: Mysql user account used to access the database.
• $user: this is the password for the Mysql user account.It is usualy root.
• $pass: this is the name of the Mysql database used.It is usualy blank.
• $table: The name of the table that you want from Mysql to csv.

STEP 2: Creating the connection to the Mysql database-export.php

In this function, I will create a simple MySql database connection using the above assigning variable.Now as you can see we are calling here exportMysqlToCsv($table) function and passing the name of table. In Next step we will create this function.

<?php

$host = 'localhost'; // MYSQL database host adress
$db = ''; // MYSQL database name
$user = ''; // Mysql Datbase user
$pass = ''; // Mysql Datbase password

// Connect to the database
$link = mysql_connect($host, $user, $pass);
mysql_select_db($db);

require 'exportMysqlToCsv.inc.php';

$table=""; // this is the tablename that you want to export to csv from mysql.

exportMysqlToCsv($table);

?>

STEP 3: Creating 'exportMysqlToCsv' function-exportMysqlToCsv.inc.php

Create a php file and named it as 'exportMysqlToCsv.inc.php'.

<?php

function exportMysqlToCsv($table,$filename = 'export.csv')
{
    $csv_terminated = "\n";
    $csv_separator = ",";
    $csv_enclosed = '"';
    $csv_escaped = "\\";
    $sql_query = "select * from $table";

    // Gets the data from the database
    $result = mysql_query($sql_query);
    $fields_cnt = mysql_num_fields($result);

    $schema_insert = '';

    for ($i = 0; $i < $fields_cnt; $i++)
    {
        $l = $csv_enclosed . str_replace($csv_enclosed, $csv_escaped . $csv_enclosed,
            stripslashes(mysql_field_name($result, $i))) . $csv_enclosed;
        $schema_insert .= $l;
        $schema_insert .= $csv_separator;
    } // end for

    $out = trim(substr($schema_insert, 0, -1));
    $out .= $csv_terminated;

    // Format the data
    while ($row = mysql_fetch_array($result))
    {
        $schema_insert = '';
        for ($j = 0; $j < $fields_cnt; $j++)
        {
            if ($row[$j] == '0' || $row[$j] != '')
            {

                if ($csv_enclosed == '')
                {
                    $schema_insert .= $row[$j];
                } else
                {
                    $schema_insert .= $csv_enclosed .
                    str_replace($csv_enclosed, $csv_escaped . $csv_enclosed, $row[$j]) . $csv_enclosed;
                }
            } else
            {
                $schema_insert .= '';
            }

            if ($j < $fields_cnt - 1)
            {
                $schema_insert .= $csv_separator;
            }
        } // end for

        $out .= $schema_insert;
        $out .= $csv_terminated;
    } // end while

    header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
    header("Content-Length: " . strlen($out));
    // Output to browser with appropriate mime type, you choose icon_wink.gif" alt=";)" class="wp-smiley">
    header("Content-type: text/x-csv");
    //header("Content-type: text/csv");
    //header("Content-type: application/csv");
    header("Content-Disposition: attachment; filename=$filename");
    echo $out;
    exit;

}

?>

As you can see the code in this function we are passing the table name using $table variable. In this example default filename of the exported file is export.csv. you can change it as you like to append date.(ex.export-15-02-20182.csv) 

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