PHP文件上传预览
主頁
<!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>無標題文檔</title> <style type="text/css"> #yl{ width:200px; height:300px; background-image:url(img/11.png); background-size:200px 300px;} #file{ width:200px; height:300px; float:left; opacity:0;} </style> </head><body><form id="sc" action="chuli.php" method="post" enctype="multipart/form-data" target="shangchuan"><input type="hidden" name="tp" value="" id="tp" /><div id="yl"><input type="file" name="file" id="file" οnchange="document.getElementById('sc').submit()" /></div></form><iframe style="display:none" name="shangchuan" id="shangchuan"> </iframe></body><script type="text/javascript">//回調函數,調用該方法傳一個文件路徑,該變背景圖 function showimg(url) {var div = document.getElementById("yl");div.style.backgroundImage = "url("+url+")";document.getElementById("tp").value = url; }</script></html>處理頁面(chuli.php)
<?phpif($_FILES["file"]["error"]) {echo $_FILES["file"]["error"]; } else {if(($_FILES["file"]["type"]=="image/jpeg" || $_FILES["file"]["type"]=="image/png")&& $_FILES["file"]["size"]<1024000){$fname = "./img/".date("YmdHis").$_FILES["file"]["name"]; $filename = iconv("UTF-8","gb2312",$fname);if(file_exists($filename)){echo "<script>alert('該文件已存在!');</script>";}else{move_uploaded_file($_FILES["file"]["tmp_name"],$filename);unlink($_POST["tp"]);echo "<script>parent.showimg('{$fname}');</script>";}} }?
轉載于:https://www.cnblogs.com/chaochao00o/p/6289196.html
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