PHP JS
var num = document.body.clientWidth;//JS获取屏幕宽度if(num = 1){
?
}else{
?
}
pS:根据JS获取屏幕的不同宽度给php变量赋值
回复讨论(解决方案)
你可以把脚本放在php中echo出来。。
不能。
PHP在显示页面的时候就已经编译完成，不能通过JS给他赋值。
你可以用ajax在页面加载完后将值传递给php程序.
不能~
页面在后端时会把所有php语句处理完但并不执行js，等到把处理后的页面发送到前台，也就是你在浏览器里看到页面的时候，js才开始执行。
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