Bootstrap

primary - #007bff

secondary - #6c757d

success - #28a745

danger - #dc3545

warning - #ffc107

info - #17a2b8

light - #f8f9fa

dark - #343a40

muted - #6c757d

white - #ffffff

echo "<a href=\"javascript:$('#form_id').submit();\">Login</a>";

or

echo "<a href=\"javascript:$('form').submit()\">Login</a>";

Ex.

echo "<form name='frm' action='index.php?op=1.6&page=update&id=$id' method='post' enctype='multipart/form-data'>";

echo "<div class='card-footer'>";

echo "<a class='btn btn-app bg-dark' href='JavaScript:window.history.go(-1);'><i class='fas fa-redo'></i>ยกเลิก</a>";

echo "<a class='btn btn-app float-right bg-danger' href=\"javascript:$('form').submit()\"><i class='fas fa-save'></i>บันทึก</a>";

echo "</div>";

$active_="active";

$n=1;

$val="$active_".$n;

echo $val;

อ่านค่าได้ active1

$active_="active";

$n=1;

$val='$active_'.$n;

echo $val;

อ่านค่าได้ $active_1

$n=1;

for($i=0; $i<count($_areaCode); $i++){

if($bg==$n){ $bgActive="light"; }else{ $bgActive=""; }

echo "<li class='nav-item'>";

echo "<a href='tableSchoollevel.overview.php?bg=$n&year=$year&area=$_areaCode[$i]' class='nav-link bg-$bgActive'>";

echo "<i class='nav-icon fas fa-".$faArr[$i]." text-".$bgArr[$i]." '></i>";

echo "<p>ข้อมูล. $_areaName[$i]</p>";

echo "</a>";

echo "</li>";

$n++;

}

View : https://bigdata.loei1.go.th/index.overview.php

<script language="javascript">

function js_popup(theURL,width,height) { //v2.0

leftpos = (screen.availWidth - width) / 2;

toppos = (screen.availHeight - height) / 2;

window.open(theURL, "viewdetails","width=" + width + ",height=" + height + ",left=" + leftpos + ",top=" + toppos);

}

</script>

<a href="#" onClick="js_popup('test2.php',783,600); return false;" title="Code PHP Popup">Test Code PHP Popup</a>