Fungsi Upload File

PHP

Sekarang saya sedang membuat website untuk keperluan Bimbingan Konseling. Sebenarnya web ini adalah pesanan dari seorang mahasiswa S2 yang sedang tesis. Dalam sistem ini ada keperluan untuk menampilkan foto pengguna, baik pembimbing maupun siswa.

Setelah mencari di beberapa sumber (PHP Manual, W3Schools.com, PHP.net, dll) akhirnya saya menemukan juga fungsi upload yang mudah untuk digunakan dan terbukti berhasil dalam mengupload file ke server. Fungsi ini saya temukan di http://id.php.net/manual/en/features.file-upload.php yang di-share oleh dmsuperman at comcast dot net.

<?php
function uploader($num_of_uploads=1, $file_types_array=array("txt"), $max_file_size=1048576, $upload_dir=""){
  if(!is_numeric($max_file_size)){
    $max_file_size = 1048576;
  }
  if(!isset($_POST["submitted"])){
    $form = "<form action='".$PHP_SELF."' method='post' enctype='multipart/form-data'>Upload files:<br /><input type='hidden' name='submitted' value='TRUE' id='".time()."'><input type='hidden' name='MAX_FILE_SIZE' value='".$max_file_size."'>";
    for($x=0;$x<$num_of_uploads;$x++){
      $form .= "<input type='file' name='file[]'><font color='red'>*</font><br />";
    }
    $form .= "<input type='submit' value='Upload'><br /><font color='red'>*</font>Maximum file length (minus extension) is 15 characters. Anything over that will be cut to only 15 characters. Valid file type(s): ";
    for($x=0;$x<count($file_types_array);$x++){
      if($x<count($file_types_array)-1){
        $form .= $file_types_array[$x].", ";
      }else{
        $form .= $file_types_array[$x].".";
      }
    }
    $form .= "</form>";
    echo($form);
  }else{
    foreach($_FILES["file"]["error"] as $key => $value){
      if($_FILES["file"]["name"][$key]!=""){
        if($value==UPLOAD_ERR_OK){
          $origfilename = $_FILES["file"]["name"][$key];
          $filename = explode(".", $_FILES["file"]["name"][$key]);
          $filenameext = $filename[count($filename)-1];
          unset($filename[count($filename)-1]);
          $filename = implode(".", $filename);
          $filename = substr($filename, 0, 15).".".$filenameext;
          $file_ext_allow = FALSE;
          for($x=0;$x<count($file_types_array);$x++){
            if($filenameext==$file_types_array[$x]){
              $file_ext_allow = TRUE;
            }
          }
          if($file_ext_allow){
            if($_FILES["file"]["size"][$key]<$max_file_size){
              if(move_uploaded_file($_FILES["file"]["tmp_name"][$key], $upload_dir.$filename)){
                echo("File uploaded successfully. - <a href='".$upload_dir.$filename."' target='_blank'>".$filename."</a><br />");
              }else{
                echo($origfilename." was not successfully uploaded<br />");
              }
            }else{
              echo($origfilename." was too big, not uploaded<br />");
            }
          }else{
            echo($origfilename." had an invalid file extension, not uploaded<br />");
          }
        }else{
          echo($origfilename." was not successfully uploaded<br />");
        }
      }
    }
  }
}
?>

Untuk menggunakannya cukup dengan menuliskan

uploader([jumlah file],[format file[array]],[ukuran file],[tempat upload]);

Contoh:

uploader(1,array("jpg"),"1024",ABSPATH."/images/");

Bila digunakan di dalam suatu class maka tambahkan $this->

$this->uploader(1,array("jpg"),"1024",ABSPATH."/images/");