birth date to year calculation in php

Note:- If you want to change formate of date for example YYYY-MM-DD to MM-DD-YYYY then change in list() function parametter and pass same formate parameter end of birthday function.

<\?php
function birthday($birthday)
{
    list($year,$month,$day) = explode("-",$birthday);

    //list($day,$month,$year) = explode("-",$birthday);

    $year_diff = date("Y") - $year;
    $month_diff = date("m") - $month;
    $day_diff = date("d") - $day;
   
    if ($month_diff < 0)
    {
        $year_diff--;
    }
    elseif (($month_diff==0) && ($day_diff < 0))
    {
        $year_diff--;
    }
    return $year_diff;
}

//echo birthday("YYYY-MM-DD");

echo birthday("1982-11-10");

//echo birthday("11-01-1985");
?>

multidimensional array sorting in php

Note:- In this post I am sorting multidimensional array by first name if you want to sort by other field then remove first_name and write other field in
array_sort_by_column($people, 'first_name');
Note :- Remove "\" from all places I have added "\" because blogger posting not supported html tags and php opening tag

<\?php

$people = array(
    1 => array(
        'id' => 1,
        'first_name' => 'Kamran',
        'surname' => 'Ahmad',
        'age' => 25,
        'sex' => 'm'
    ),
    2 => array(
        'id' => 2,
        'first_name' => 'Adam',
        'surname' => 'Smith',
        'age' => 18,
        'sex' => 'm'
    ),
    3 => array(
        'id' => 3,
        'first_name' => 'Joe',
        'surname' => 'Bloggs',
        'age' => 23,
        'sex' => 'm'
    ),
    4 => array(
        'id' => 4,
        'first_name' => 'Amy',
        'surname' => 'Jones',
        'age' => 21,
        'sex' => 'f'
    )
);

function array_sort_by_column(&$arr, $col, $dir = SORT_ASC) {
    $sort_col = array();
    foreach ($arr as $key=> $row) {
        $sort_col[$key] = $row[$col];
    }

    array_multisort($sort_col, $dir, $arr);
}

array_sort_by_column($people, 'first_name');
?>
<\table width="500px" cellpadding="0" cellspacing="0" border="1">
    <\tr>
        <\td height="30px" align="center"><\b>ID<\/td>
        <\td height="30px" align="center"><\b>First name<\/b><\/td>
        <\td height="30px" align="center"><\b>Surname<\/b><\/td>
        <\td height="30px" align="center"><\b>Age<\/b><\/td>
        <\td height="30px" align="center"><\b>Sex<\/b><\/td>
  
foreach($people as $peo)
{
    echo "<\tr>";
    echo "<\td height='30px' align='center'>".$peo['id']."<\/td>";
    echo "<\td height='30px' align='center'>".$peo['first_name']."<\/td>";
    echo "<\td height='30px' align='center'>".$peo['surname']."<\/td>";
    echo "<\td height='30px' align='center'>".$peo['age']."<\/td>";
    echo "<\td height='30px' align='center'>".$peo['sex']."<\/td>";
    echo "<\/tr>";
}

?>

<\/table>

export data from mysql database table in csv file using php

In this post we export data from mysql database table in csv file formate using php.

Note : Save bellow file as name  csvfile.php

<\?php
$host = 'localhost'; // MySql DataBase Host Name
$db = 'databasename'; // MySql DataBase Name
$user = 'root'; // MySql DataBase UserName
$pass = ''; // MySql DataBase Password

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

require 'exportcsv.php';
$table="TableName"; // Table Name that you want to export in csv file from mysql database.

exportMysqlToCsv($table);
?>



Note: Save bellow file as name  exportcsv.php



<\?php
function exportMysqlToCsv($table, $filename = 'csvfilename.csv')
{
    $csv_terminated = "\n";
    $csv_separator = ",";
    $csv_enclosed = '"';
    $csv_escaped = "\\";

    $sql_query = "select * from $table";
    $result = mysql_query($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 ;)
    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;
}
?>