alert for new update in php or javascript

How to change background color for last render row i开发者_运维技巧n while loop ....

that is

row1
row2
**row3**

If row4 is added then it should

row1
row2
row3
**row4**

that is star represents some bgcolor red...

this loop am following,,,, $i = 1; while ($row = mysql_fetch_assoc($sql)) {

$out_data[] = "<p>$i {$row['news']} </p>";

$i++;
}

$divider = '<div class="border"></div>';
$output = implode ($divider, $out_data);

echo $output;

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you can use mysql_num_rows to get the number of rows you have before the while loop.

 $row_count = mysql_num_rows($sql)

inside the while loop

 if ($i==$row_count)
    // put color $out_data[] = "<p style="colorsomething">$i {$row['news']} </p>";
 else
    // dont put color $out_data[] = "<p>$i {$row['news']} </p>";

does this help?

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EDIT: You'd need to change the formatting for the last element of $out_data like this: (once the while loop completes)

…
$out_data[ count($out_data) - 1 ] = "<div style='background-color:red'>" . end($out_data) . "</div>"

$divider = '<div class="border"></div>';
$output = implode ($divider, $out_data);

echo $output;

how does that work?