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ajax+php file upload code without refresh_PHP tutorial

WBOYOriginal: 2016-07-13 17:06:511074browse

If you don’t use Ajax to upload files in PHP, the effect will not be very good and the user experience will not be very good. Let’s take a look at the Ajax+PHP file upload code without refreshing. ajax+php file upload code without refresh

ajax+php tutorial file upload code without refreshing

ajax+php file upload code without refreshing

Add file:

                                                                                                                                                                                          & Lt; td & gt; file path & lt;/td & gt;


Warm reminder: Up to files can be uploaded at the same time. Only file.

file.php file

$sort=12;
$f_type=strtolower("swf,jpg,rar,zip,7z,iso,gif");//Set the file types that can be uploaded
$file_size_max=200*1024*1024;//Limit the maximum capacity of a single file upload
$overwrite = 0;//Whether it is allowed to overwrite the same file, 1: allowed, 0: not allowed
$f_input="files";//Set the upload domain name
Foreach($_files[$f_input]["error"] as $key => $error){
          $up_error="no";
If ($error == upload_err_ok){
                 $f_name=$_files[$f_input]['name'][$key];//Get the upload source file name
$uploaddir ='./www.bKjia.c0m/';
                 $uploadfile=$uploaddir.strtolower(basename($f_name));
                 $tmp_type=substr(strrchr($f_name,"."),1);//Get the file extension
$tmp_type=strtolower($tmp_type);
If(!stristr($f_type,$tmp_type)){
                        echo "<script>alert('Sorry, cannot upload ".$tmp_type." format file, ".$f_name." file upload failed!')</script>";
                    $up_error="yes";
                                                             If ($_files[$f_input]['size'][$key]>$file_size_max) {

echo "<script>alert('Sorry, the file you uploaded ".$f_name." has a capacity of ".round($_files[$f_input]<br> ['size'][$key]/1024)."kb, greater than the specified".($file_size_max/1024)."kb, upload failed!')</script>";
                    $up_error="yes";
                                                             If (file_exists($uploadfile)&&!$overwrite){
                           echo "<script>alert('Sorry, the file ".$f_name." already exists, upload failed!')</script>";
                    $up_error="yes";
                                                                               $string = 'abcdefghijklmnopgrstuvwxyz0123456789';
$rand = '';
for ($x=0;$x<12;$x++)
$rand .= substr($string,mt_rand(0,strlen($string)-1),1);
$t=date("ymdhis").substr($gettime[0],2,6).$rand;
$attdir="./file/";
If(!is_dir($attdir))
{ mkdir($attdir);}
$uploadfile=$attdir.$t.".".$tmp_type;
If(($up_error!="yes") and (move_uploaded_file($_files[$f_input]['tmp_name']

[$key], $uploadfile))){

                                               $_msg=$_msg.$f_name.'Upload successful';

}

else{

$_msg=$_msg.$f_name.'Upload failed';

}
}

}
echo "<script>window.parent.finish('".$_msg."');</script>";
/*
For PHP file upload, if Ajax is not used, the effect will not be very good, and the user experience will not be very good. Let’s take a look at this Ajax+PHP file upload code without refreshing.
*/
?>

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