php+js实现异步图片上传实例分享

upload.php

<?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);

}

?>

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