原生PHP一次上传多张图片

古城微笑少年丶 2022-02-24 05:05 298阅读 0赞

<?php
    	$file=$_FILES['pic'];
    	$upload_path = "/upload/pic/"; 								//上传文件的存放路径
    	if($file['name'] <> ""){									//如果未选择图片请先选择
    		foreach($file['size'] as $key=>$val){
    			if($val < 307200){									//上传文件需小于300KB
    				foreach($file['error'] as $k=>$v){
    					if($v>0){									//上传错误数大于0，即有错误
    						echo "Error:".$file['error']."<br/>";
    					}else{										//上传成功
    						$biaoshi=$r["ddh"];
    						foreach($file['name'] as $ke=>$va){
    							//获取扩展名，end()获取数组最后一个值，strtolower()将字符串转换成小写
    							$kz=strtolower(end(explode('.',$va)));
    							$sui=mt_rand(1000,9999);
    							$filename=date('YmdHis').$sui.'.'.$kz;
    							$pic=$upload_path.$filename;		//指定上传路径		
    							move_uploaded_file($file['tmp_name'][$ke],$pic);//将保存在服务器中的临时上传文件转移到指定位置										
    							$dat=date('Y-m-d H:i:s');
    							$str="insert into pic(ddh,picurl,time) values('$biaoshi','$pic','$dat')";
    							$sqlpic=$db->query($str);
    						}
    						if($sqlpic){
    							echo "<script>window.location.href=history.go(-2);</script>";
    						}
    						die;									//防止因为3个foreach导致3次重复提交产生的重复数据
    					}
    				}
    			}else{
    				echo "<script>alert('上传图片过大！');window.location.href=history.go(-1);</script>";
    			}
    		}
    	}else{
    		echo "<script>alert('请先上传图片！');window.location.href=history.go(-1);</script>";
    }
    ?>
    
    //Html中:
    <tr>
    	<td class="left" valign="top">照片：</td>
    	<td class="right">
    		<div id="pic">
    			<input type="file" name="pic[]" /> 
    			<span class="intro" style="color:red;">图片不能大于300KB</span><br/>
    		</div>
    		<input type="button" id="add" onClick="addpic()" value="继续添加"/>
    	</td>
    </tr>
    <script>
    	function addpic(){
    		var add = document.getElementById("add");
    		var input = document.createElement("input");
    		var br = document.createElement("br");
    		input.type = "file";
    		input.name = "pic[]";
    		var pic = document.getElementById("pic");
    		pic.appendChild(input);
    		pic.appendChild(br);
    		//if(pic.children.length == 3){
    		//	add.disabled = "disabled";
    		//	alert("最多添加3张照片");
    		//}
    	}
    </script>