function setCookie(cname, cvalue, exdays) { var d = new Date(); d.setTime(d.getTime() + (exdays*24*60*60*1000)); var expires = "expires="+ d.toUTCString(); console.log('Setting client cookie ' + cname) document.cookie = cname + "=" + cvalue + ";" + expires + ";path=/"; } Warning: Cannot modify header information - headers already sent by (output started at /var/www/vhosts/cptr.com/httpdocs/adengagement/setCookie.php:1) in /var/www/vhosts/cptr.com/httpdocs/adengagement/setCookie.php on line 11 Warning: Cannot modify header information - headers already sent by (output started at /var/www/vhosts/cptr.com/httpdocs/adengagement/setCookie.php:1) in /var/www/vhosts/cptr.com/httpdocs/adengagement/setCookie.php on line 14 Warning: Undefined array key "fdusr" in /var/www/vhosts/cptr.com/httpdocs/adengagement/setCookie.php on line 15 Warning: Cannot modify header information - headers already sent by (output started at /var/www/vhosts/cptr.com/httpdocs/adengagement/setCookie.php:1) in /var/www/vhosts/cptr.com/httpdocs/adengagement/setCookie.php on line 15 console.log('server side cookie has been set');setCookie('ClientTestCookie','userId_7573',365);console.log('client side cookie has been set');