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Answers for "file upload in php example code demo"

PHP
1

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
	?>
Posted by: Guest on July-03-2020
1

file upload php

<?php
/*
echo "<pre>";
echo "FILES:<br>";
print_r ($_FILES );
echo "</pre>";
*/
if ( $_FILES['uploaddatei']['name']  <> "" )
{
    // Datei wurde durch HTML-Formular hochgeladen
    // und kann nun weiterverarbeitet werden

    // Kontrolle, ob Dateityp zulässig ist
    $zugelassenedateitypen = array("image/png", "image/jpeg", "image/gif");

    if ( ! in_array( $_FILES['uploaddatei']['type'] , $zugelassenedateitypen ))
    {
        echo "<p>Dateitype ist NICHT zugelassen</p>";
    }
    else
    {
        // Test ob Dateiname in Ordnung
        $_FILES['uploaddatei']['name'] 
                               = dateiname_bereinigen($_FILES['uploaddatei']['name']);

        if ( $_FILES['uploaddatei']['name'] <> '' )
        {
            move_uploaded_file (
                 $_FILES['uploaddatei']['tmp_name'] ,
                 'hochgeladenes/'. $_FILES['uploaddatei']['name'] );

            echo "<p>Hochladen war erfolgreich: ";
            echo '<a href="hochgeladenes/'. $_FILES['uploaddatei']['name'] .'">';
            echo 'hochgeladenes/'. $_FILES['uploaddatei']['name'];
            echo '</a>';
        }
        else
        {
            echo "<p>Dateiname ist nicht zulässig</p>";
        }
    }
}

function dateiname_bereinigen($dateiname)
{
    // erwünschte Zeichen erhalten bzw. umschreiben
    // aus allen ä wird ae, ü -> ue, ß -> ss (je nach Sprache mehr Aufwand)
    // und sonst noch ein paar Dinge (ist schätzungsweise mein persönlicher Geschmach ;)
    $dateiname = strtolower ( $dateiname );
    $dateiname = str_replace ('"', "-", $dateiname );
    $dateiname = str_replace ("'", "-", $dateiname );
    $dateiname = str_replace ("*", "-", $dateiname );
    $dateiname = str_replace ("ß", "ss", $dateiname );
    $dateiname = str_replace ("ß", "ss", $dateiname );
    $dateiname = str_replace ("ä", "ae", $dateiname );
    $dateiname = str_replace ("ä", "ae", $dateiname );
    $dateiname = str_replace ("ö", "oe", $dateiname );
    $dateiname = str_replace ("ö", "oe", $dateiname );
    $dateiname = str_replace ("ü", "ue", $dateiname );
    $dateiname = str_replace ("ü", "ue", $dateiname );
    $dateiname = str_replace ("Ä", "ae", $dateiname );
    $dateiname = str_replace ("Ö", "oe", $dateiname );
    $dateiname = str_replace ("Ü", "ue", $dateiname );
    $dateiname = htmlentities ( $dateiname );
    $dateiname = str_replace ("&", "und", $dateiname );
    $dateiname = str_replace (" ", "und", $dateiname );
    $dateiname = str_replace ("(", "-", $dateiname );
    $dateiname = str_replace (")", "-", $dateiname );
    $dateiname = str_replace (" ", "-", $dateiname );
    $dateiname = str_replace ("'", "-", $dateiname );
    $dateiname = str_replace ("/", "-", $dateiname );
    $dateiname = str_replace ("?", "-", $dateiname );
    $dateiname = str_replace ("!", "-", $dateiname );
    $dateiname = str_replace (":", "-", $dateiname );
    $dateiname = str_replace (";", "-", $dateiname );
    $dateiname = str_replace (",", "-", $dateiname );
    $dateiname = str_replace ("--", "-", $dateiname );

    // und nun jagen wir noch die Heilfunktion darüber
    $dateiname = filter_var($dateiname, FILTER_SANITIZE_URL);
    return ($dateiname);
}
?>

<form name="uploadformular" 
      enctype="multipart/form-data" action="dateiupload.php" method="post">
Datei: <input type="file" name="uploaddatei" size="60" maxlength="255">
<input type="Submit" name="submit" value="Datei hochladen">
</form>
Posted by: Guest on April-14-2021
0

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;
        }
}
Posted by: Guest on November-03-2020

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