简单实现图床功能的源码分享(原创)
PHP实现
简易源码
创建 index.php 文件,作为程序入口
<?php
#phpinfo();
#error_reporting(E_ALL);
#ini_set('display_errors', 1);
date_default_timezone_set('PRC');//时区
header('Content-type:text/html;charset=utf-8');//编码格式
//打开图片
if (isset($_REQUEST['name'])) {
$key = $_REQUEST['name'];
header("Location: uploads/$key");
exit();
} else if (isset($_FILES['file'])) {
$resultOut = array(
'state' => false,
'msg' => '上传失败'
);
//上传文件信息
$fileName = $_FILES['file']['name'];
$fileSize = $_FILES['file']['size'];
$tmpName = $_FILES['file']['tmp_name'];
//检查文件上传大小
if ($fileSize / 1024 > 1024 * 5) {
$resultOut['msg'] = '上传文件过太';
echo json_encode($resultOut);
exit();
}
//上传格式限制
$fileTypeInfo = [
'png',
'jpg',
'jpeg',
];
$fileType = strtolower(substr(strrchr($fileName, '.'), 1));
if (!in_array($fileType, $fileTypeInfo)) {
$resultOut['msg'] = '上传文件格式不正确';
echo json_encode($resultOut);
exit();
}
//文件名称
$newFileName = date('YmdHis') . '_' . $fileName;
//本地存储目录
if (!file_exists('./uploads')) mkdir('./uploads');
//移动文件到指定目录
$filePath = "./uploads/$newFileName";
if (move_uploaded_file($tmpName, $filePath)) {
$resultOut['state'] = true;
$resultOut['msg'] = '上传成功';
$resultOut['data'] = "uploads/$newFileName";
}
echo json_encode($resultOut);
exit();
}
?>
<!DOCTYPE html>
<html>
<head>
<meta charset='UTF-8'>
<meta http-equiv='X-UA-Compatible' content='IE=edge'>
<meta name='viewport' content='width=device-width, initial-scale=1.0'>
<title>Picture Bed</title>
</head>
<body>
<div style='margin:30px;'>
<div style='margin-bottom:10px;'>
服务端仅能接收:<?php echo ini_get('upload_max_filesize') ?>的文件上传
</div>
<div id='fileData'>
<input type='file' accept='image/*' />
<input type='submit' value='上传' onclick='upload()' />
</div>
<div id='outData' style='margin-top:30px;word-wrap:break-word;'></div>
</div>
<script>
var state = false;
var file = null;
//粘贴事件
document.addEventListener('paste', function(event) {
var items = event.clipboardData && event.clipboardData.items;
if (items && items.length) {
for (var i = 0; i < items.length; i++) {
if (items[i].type.indexOf('image') !== -1) {
file = items[i].getAsFile();
break;
}
}
//上传文件
upload();
}
});
//上传事件
function upload() {
if(state == true) {
alert('正在上传文件');
return;
}
let fileDom = document.querySelector('input[type=file]');
let submitDom = document.querySelector('input[type=submit]');
let outDom = document.querySelector('#outData');
//锁定元素
state = true;
submitDom.disabled = true;
//表单提交文件
const formData = new FormData();
if (file == null) file = fileDom.files[0];
formData.append('file', file);
var request = new XMLHttpRequest();
request.onreadystatechange = function(event) {
if (request.readyState == 4 && request.status == 200) {
var resultText = request.responseText;
var result = JSON.parse(resultText);
var outMsg = '';
if (result.state == true) {
outMsg = result.data;
} else {
outMsg = result.msg;
}
outDom.innerHTML += `${outMsg}<br /><br />`;
file = null;
state = false;
submitDom.disabled = false;
}
};
request.open('POST', '');
request.send(formData);
}
</script>
</body>
</html>
这个源码可以粘贴剪切板的图片也可以选择文件,进行上传。
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