Javascript 如何为“选择”选项设置默认值
函数提交形式{ var thelang=document.getElementById'lang'。选项[document.getElementById'lang'。selectedIndex]。值; window.location.href=window.location.pathname+'?lang='+thelang; } 试试这个Javascript 如何为“选择”选项设置默认值,javascript,php,Javascript,Php,函数提交形式{ var thelang=document.getElementById'lang'。选项[document.getElementById'lang'。selectedIndex]。值; window.location.href=window.location.pathname+'?lang='+thelang; } 试试这个 <option value="en"<?php if( $lng != 'ar'){ echo " selected=\"selected\
<option value="en"<?php if( $lng != 'ar'){ echo " selected=\"selected\"";} ?> > English</option>
<option value="ar"<?php if( $lng == 'ar'){ echo " selected=\"selected\"";} ?> >Arabic</option>
如果这是完美的,那么就用$lng代替$u GET['lang']检查一下:谢谢@syedmohamedumar