Ext.define('MyApp.view.ui.MyForm', {    extend: 'Ext.form.Panel',

    height: 107,    width: 398,    bodyPadding: 10,    title: '上传图片',

    initComponent: function() {var me = this;        me.items = [            {                xtype: 'filefield',                name: 'file',                fieldLabel: '请选择图片',                anchor: '100%',                allowBlank:false,                regex: /((\.jpg)|(\.png)|(\.gif))$/i,                invalidText:'请选择正确的图片格式'            },            {                xtype: 'button',                text: '点击上传',                handler:function(btn){var form=btn.up('form').getForm();if(form.isValid())                    {                        form.submit({                            url:'pro.php',                            waitMsg:'正在上传中...',                            success:function(grid,action){                                    Ext.Msg.alert('信息提示',action.result.msg);                                },                            failure:function(grid,action){                                    Ext.Msg.alert('信息提示',action.result.msg);                            }

                        });                    }else                    {                        Ext.Msg.alert('信息提示','请选择正确的图片格式');                    }                }

            }        ];        me.callParent(arguments);    }});

Ext.onReady(function(){    Ext.create('MyApp.view.ui.MyForm',{

        renderTo:Ext.get('main')    });})

<?php

if ($_FILES["file"]["error"] > 0)    {echo "{                success:false,                msg:'上传出错，请重试'            }";    }else    {if (file_exists("upload/" . $_FILES["file"]["name"]))          {echo "{                  success:false,                  msg:'文件已存在'                      }              ";          }else          {$now=time();//获取当前时间戳            $path_arr=pathinfo($_FILES["file"]["name"]);$new_file_name=$now.'.'.$path_arr['extension'];move_uploaded_file($_FILES["file"]["tmp_name"],"upload/".$new_file_name);echo "{                  success:true,                  msg:'上传成功'              }";          }    }

  ?>

<?php$path_parts = pathinfo("/www/htdocs/index.html");echo $path_parts["dirname"] . "\n";//输出/www/htdocs echo $path_parts["basename"] . "\n";//输出index.htmlecho $path_parts["extension"] . "\n";//输出html?>