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Dynamic Grid Output Programming Array Data Tutorial

There may come a time when you would like to render a dynamic grid layout from array data you have access to in your scripts. Most times an HTML <table> is used to make a grid of table rows and columns from a dynamic array of information. But you are not limited to tables, use DIVs with "display:inline" applied in their CSS, or any other container tag that can hold text and stuff on a web page. In the script below we are querying our MySQL database using PHP, then simply adding a few lines within our normal while loop to create grid layout logic. The logic in this lesson could be applied to any programming language. <?php // Include database connection include_once 'connect_to_mysql.php'; // SQL query to interact with info from our database $sql = mysql_query("SELECT id, member_name FROM member_table ORDER BY id DESC LIMIT 15"); $i = 0; // Establish the output variable $dyn_table = '<table border="1" cellpadding="10">'; while($row = mysql_fetch_array($sql)){ $id = $row["id"]; $member_name = $row["member_name"]; if ($i % 3 == 0) { // if $i is divisible by our target number (in this case "3") $dyn_table .= '<tr><td>' . $member_name . '</td>'; } else { $dyn_table .= '<td>' . $member_name . '</td>'; } $i++; } $dyn_table .= '</tr></table>'; ?> <html> <body> <h3>Dynamic PHP Grid Layout From a MySQL Result Set</h3> <?php echo $dyn_table; ?> </body> </html>
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