php如何弹出提示框：

< ?PHP

echo "< script language=

\"JavaScript\">alert

(\"你好\");< /script>";

?>

//或者

< ?PHP

print "< script language=

\"JavaScript\">alert

(\"你好\");< /script>";

?>

php确认取消弹出框怎么设置：

public void isHan() { AlertDialog.Builder builder=new AlertDialog.Builder(this); builder.setTitle("小韩提示"); builder.setIcon(android.R.drawable.ic_dialog_info); builder.setPositiveButton("确定", new DialogInterface.OnClickListener(){ //点击确定执行 @Override public void onClick(DialogInterface arg0, int arg1) { }}); builder.setNegativeButton("返回", new DialogInterface.OnClickListener(){ //点击取消执行 @Override public void onClick(DialogInterface arg0, int arg1) { }}); AlertDialog b = builder.create(); b.show();//显示对话框 }