html代碼
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>簡單的html5 File測試 for pic2base64</title> <style> </style> <script> window.onload = function(){ var input = document.getElementById("demo_input"); var result= document.getElementById("result"); var img_area = document.getElementById("img_area"); if ( typeof(FileReader) === 'undefined' ){ result.innerHTML = "抱歉，你的瀏覽器不支援 FileReader，請使用現代瀏覽器操作！"; input.setAttribute('disabled','disabled'); }else{ input.addEventListener('change',readFile,false); } } function readFile(){ var file = this.files[0]; //這裡我們判斷下類型如果不是圖片就返回 去掉就可以上傳任意檔案 if(!/image\/\w+/.test(file.type)){ alert("請確保檔案為映像類型"); return false; } var reader = new FileReader(); reader.readAsDataURL(file); console.log(); reader.onload = function(e){ result.innerHTML = this.result; img_area.innerHTML = '<p class="sitetip">圖片img標籤展示：</p>'; } } </script> </head><body> <form action="file.php" method="post"> <input type="file" value="sdgsdg" id="demo_input" /> <textarea name="img" id="result" rows=30 cols=300></textarea> <p id="img_area"></p> <input type="submit" value="提交"></form></body> </html>
PHP功能塊代碼
<?php/** * base64圖片上傳 * @param $base64_img * @return array */$base64_img = trim($_POST['img']);$up_dir = './upload/';//存放在目前的目錄的upload檔案夾下if(!file_exists($up_dir)){ mkdir($up_dir,0777);}if(preg_match('/^(data:\s*image\/(\w+);base64,)/', $base64_img, $result)){ $type = $result[2]; if(in_array($type,array('pjpeg','jpeg','jpg','gif','bmp','png'))){ $new_file = $up_dir.date('YmdHis_').'.'.$type; if(file_put_contents($new_file, base64_decode(str_replace($result[1], '', $base64_img)))){ $img_path = str_replace('../../..', '', $new_file); echo '圖片上傳成功</br>'; }else{ echo '圖片上傳失敗</br>'; } }else{ //檔案類型錯誤 echo '圖片上傳類型錯誤'; }}else{ //檔案錯誤 echo '檔案錯誤';}
執行個體效果如下：
以上就是本文的全部內容，希望對大家的學習有所協助，也希望大家多多支援topic.alibabacloud.com。
Start building with 50+ products and up to 12 months usage for Elastic Compute Service
1 on 1 presale consultation
24/7 Technical Support 6 Free Tickets per Quarter Faster Response
Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.
A comprehensive suite of global cloud computing services to power your business
Payment Methods We Support
