js php xmlrequest method to upload pictures_PHP tutorial

I originally wanted to use a plug-in to upload pictures, but then I wrote a simple js to implement asynchronous picture upload. Needless to say, the code is very simple

upload.php

　if(isset($_FILES["myfile"]))

　{

　$ret = array();

$uploadDir = 'images'.DIRECTORY_SEPARATOR.date("Ymd").DIRECTORY_SEPARATOR;

$dir = dirname(__FILE__).DIRECTORY_SEPARATOR.$uploadDir;

file_exists($dir) (mkdir($dir,0777,true) && chmod($dir,0777));

　if(!is_array($_FILES["myfile"]["name"])) //single file

　{

$fileName = time().uniqid().'.'.pathinfo($_FILES["myfile"]["name"])['extension'];

move_uploaded_file($_FILES["myfile"]["tmp_name"],$dir.$fileName);

　$ret['file'] = DIRECTORY_SEPARATOR.$uploadDir.$fileName;

　}

echo json_encode($ret);

　}

　?>

index.html

　

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http://www.bkjia.com/PHPjc/814676.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/814676.htmlTechArticleI originally wanted to use a plug-in to upload pictures, but then I wrote a simple js to implement asynchronous picture upload, not much The code is very simple upload.php if(isset($_FILES[myfile])) { $ret = a...