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"]))//singlefile
{
$fileName=time().uniqid().'.'.pathinfo($_FILES["myfile"]["name"])['extension'];
move_uploaded_file($_FILES["myfile"]["tmp_name"],$dir.$fileName);
$ret['file']=DIRECTORY_SEPARATOR.$uploadDir.$fileName;
}
echojson_encode($ret);
}
?>
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