upload file php code example

Example 1: php upload file

<?php
   if(isset($_FILES['image'])){
      $errors= array();
      $file_name = $_FILES['image']['name'];
      $file_size =$_FILES['image']['size'];
      $file_tmp =$_FILES['image']['tmp_name'];
      $file_type=$_FILES['image']['type'];
      $file_ext=strtolower(end(explode('.',$_FILES['image']['name'])));
      
      $extensions= array("jpeg","jpg","png");
      
      if(in_array($file_ext,$extensions)=== false){
         $errors[]="extension not allowed, please choose a JPEG or PNG file.";
      }
      
      if($file_size > 2097152){
         $errors[]='File size must be excately 2 MB';
      }
      
      if(empty($errors)==true){
         move_uploaded_file($file_tmp,"images/".$file_name);
         echo "Success";
      }else{
         print_r($errors);
      }
   }
?>

Example 2: basic code for file upload in php

//This is the minimal code for an image upload for first time learners
//html portion
<!DOCTYPE html>
<html>
<head>
	<title>ImageUpload</title>
</head>
<body>
	<form action="upload.php" method="post" enctype="multipart/form-data">
		<label>Username</label>
		<input type="text" name="username">
		<br>
		<label>UploadImage</label>
		<input type="file" name='myfile'>
		<br/>
		<input type="submit" value="upload">
	</form>
</body>
</html>
  
 //php portion
  <?php
	$user=$_POST['username'];
	$image=$_FILES['myfile'];
	echo "Hello $user <br/>";
	echo "File Name<b>::</b> ".$image['name'];

	move_uploaded_file($image['tmp_name'],"photos/".$image['name']);
	//here the "photos" folder is in same folder as the upload.php, 
	//otherwise complete url has to be mentioned
	?>

Example 3: image upload in php

<?php
   if(isset($_FILES['image'])){
      $errors= array();
      $file_name = $_FILES['image']['name'];
      $file_size =$_FILES['image']['size'];
      $file_tmp =$_FILES['image']['tmp_name'];
      $file_type=$_FILES['image']['type'];
      $file_ext=strtolower(end(explode('.',$_FILES['image']['name'])));
      
      $extensions= array("jpeg","jpg","png");
      
      if(in_array($file_ext,$extensions)=== false){
         $errors[]="extension not allowed, please choose a JPEG or PNG file.";
      }
      
      if($file_size > 2097152){
         $errors[]='File size must be excately 2 MB';
      }
      
      if(empty($errors)==true){
         move_uploaded_file($file_tmp,"images/".$file_name);
         echo "Success";
      }else{
         print_r($errors);
      }
   }
?>
<html>
   <body>
      
      <form action="" method="POST" enctype="multipart/form-data">
         <input type="file" name="image" />
         <input type="submit"/>
      </form>
      
   </body>
</html>

Example 4: php image upload in database

<?php
error_reporting(0);
?>
<?php
$msg = "";

// If upload button is clicked ...
if (isset($_POST['upload'])) {

	$filename = $_FILES["uploadfile"]["name"];
	$tempname = $_FILES["uploadfile"]["tmp_name"];
		$folder = "image/".$filename;

	$db = mysqli_connect("localhost", "root", "", "image_upload");

		// Get all the submitted data from the form
		$sql = "INSERT INTO images (filename) VALUES ('$filename')";

		// Execute query
		mysqli_query($db, $sql);

		// Now let's move the uploaded image into the folder: image
		if (move_uploaded_file($tempname, $folder)) {
			$msg = "Image uploaded successfully";
		}else{
			$msg = "Failed to upload image";
	}
}
$result = mysqli_query($db, "SELECT * FROM images");
?>

<!DOCTYPE html>
<html>
<head>
<title>Image Upload</title>
<link rel="stylesheet" type= "text/css" href ="style.css"/>
<div id="content">

<form method="POST" action="" enctype="multipart/form-data">
	<input type="file" name="uploadfile" value=""/>

	<div>
		<button type="submit" name="upload">UPLOAD</button>
		</div>
</form>
</div>
</body>
</html>

Example 5: upload file to the server php database

<?php
if(isset($_POST['btn-upload']))
{    
     
 $file = rand(1000,100000)."-".$_FILES['file']['name'];
    $file_loc = $_FILES['file']['tmp_name'];
 $file_size = $_FILES['file']['size'];
 $file_type = $_FILES['file']['type'];
 $folder="uploads/";
 
 move_uploaded_file($file_loc,$folder.$file);
 $sql="INSERT INTO tbl_uploads(file,type,size) VALUES('$file','$file_type','$file_size')";
 mysql_query($sql); 
}
?>

Example 6: php upload

// To change: FILENAME, array with allowed extensions, Max Filesite, Filepath
if(upload("FILENAME", array("jpeg","jpg","png"), 209715, "C:/xampp/htdocs/")){
        echo "Success";
    }


function upload($f_name, $f_ext_allowed, $f_maxsize, $f_path){

      $f_name_2 = $_FILES[$f_name]['name'];
      $f_size  =  $_FILES[$f_name]['size'];
      $f_tmp   =  $_FILES[$f_name]['tmp_name'];
      $f_error =  $_FILES[$f_name]['error'];
      $f_ext   = strtolower(end(explode('.',$f_name_2)));
      $f_rename = $_SESSION['uid'] . "." . $f_ext;

        if($f_error == 0 && in_array($f_ext, $f_ext_allowed) 
        && $f_size < $f_maxsize && mb_strlen($f_name_2, "UTF-8") < 225 
        && preg_match("`^[-0-9A-Z_\.]+$`i", $f_name_2)){
            if(move_uploaded_file($f_tmp, $f_path . $f_name_2){
                return true;
            }else{
                return false;
            }
        }else{
            return false;
        }
}

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