Ciaoo...
Vorrei avvicinarmi un pò all'uso delle classi...visto che mi servono per lavoro...e quindi ho trovato alcune risorse interessanti, se solo riuscissi a capire come si usano.
Allora ho preso un file .php che usa all'interno le classi, ma nn so come farlo girare, cioè vedendolo in locale nn mi si vede niente.
Magari date voi un'okkiata al codice, serve per l'admin di un database. Come posso utilizzare questo codice?
Codice PHP:
<?
////////////////////////////////////////////
// Admin Module class //
////////////////////////////////////////////
// Written by [email]dkode@full-fx.com[/email] //
// this is to be used in conjunction with //
// mysql_db class for database calls //
////////////////////////////////////////////
class admin {
var $img_upload;
// Constructor
//function admin($host, $db, $user, $pass, $img_fname='',$img_path='',$img_url='') {
function admin() {
global $img_upload;
if ($img_upload == 1) {
global $img_fname;
global $img_path;
global $img_url;
// Set all of the image vars locally in this class
$this->img_fname = $img_fname;
$this->img_path = $img_path;
$this->img_url = $img_url;
$this->img_upload = 1;
}
else {
echo "Img upload not enabled
\n";
$this->img_upload = 0;
}
db_connect();
}
///////////////////////////////////////////////
// ADD Function //
///////////////////////////////////////////////
// $table : table to edit data in. //
// $form_fields : field values from the form //
///////////////////////////////////////////////
function add($table, $form_fields) {
// Enter IF img_up is true
if ($this->img_upload == 1) {
// First Upload file, If applicable
if ($form_fields[$this->img_fname] != 'none') {
// Uploads image and returns unique filename
$form_fields[$this->img_fname] = $this->img_upload();
if ($form_fields[$this->img_fname] == '') {
echo $form_fields[$this->img_fname];
echo "Invalid File format!!
\n";
exit;
}
}
else {
// otherwise, set img to nothing
$form_fields[$this->img_fname] = '';
}
}
// Build INSERT Query
$count = 1;
$fcount = sizeof($form_fields);
foreach ($form_fields as $key => $value) {
if ($count == $fcount) {
// END Field Names
$field_names .= "$key";
// END Data
$fields .= "'$value'";
}
else {
// Field Names
$field_names .= "$key, ";
// Data
$fields .= "'$value', ";
}
$count++;
}
$query = "INSERT INTO $table ($field_names) VALUES($fields)";
//$this->query($query);
db_query($query);
return true;
}
///////////////////////////////////////////////
// Edit Function //
///////////////////////////////////////////////
// $table : table to edit data in. //
// $form_fields : field values from the form //
// $id : id of item to edit //
///////////////////////////////////////////////
function edit($table,$form_fields,$id) {
// Enter IF img_upload is enabled
if ($this->img_upload == 1) {
// If they uploaded an image, we need to remove the old one if applicable
if ($form_fields[$this->img_fname] != 'none') {
// Get old info from db
$query = "SELECT $this->img_fname FROM $table WHERE id = '$id'";
$result = db_query($query);
$result = db_fetch_array($result);
if ($result[$this->img_fname] != '') {
// Delete large image
$full_path = $this->img_path . $result[$this->img_fname];
unlink($full_path);
// Delete thumbnail
$tmb_path = $this->img_path . "sm" . $result[$this->img_fname];
unlink($tmb_path);
}
// Do image functions to new image
$form_fields[$this->img_fname] = $this->img_upload();
}
if ($form_fields[$this->img_fname] == 'none') {
unset ($form_fields[$this->img_fname]);
}
}
// Make UPDATE query
$count = 1;
$fcount = sizeof($form_fields);
foreach ($form_fields as $name => $value) {
if ($count == $fcount) {
// End Field Names
$fields .= "$name='$value'";
}
else {
$fields .= "$name='$value', ";
}
$count++;
}
$query = "UPDATE $table SET $fields WHERE id = '$id'";
db_query($query);
return true;
}
///////////////////////////////////////////////
// Delete Function //
///////////////////////////////////////////////
// $table : table name to delete entry from //
// $id : id of entry to delete //
///////////////////////////////////////////////
function delete($table,$id) {
// Enter IF img_up is true
if ($this->img_upload == 1) {
// Get old image name from DB
$query = "SELECT $this->img_fname FROM $table WHERE id = '$id'";
$result = db_query($query);
$result = db_fetch_array($result);
// Delete large image and thumbnail
if ($result[$this->img_fname] != '') {
// Delete large image
$full_path = $this->img_path . $result[$this->img_fname];
unlink($full_path);
// Delete thumbnail
$tmb_path = $this->img_path . "sm" . $result[$this->img_fname];
unlink($tmb_path);
}
}
// Delete item from database
$query = "DELETE FROM $table WHERE id='$id'";
db_query($query);
return true;
}
///////////////////////////////////////////////
// IMAGE UPLOAD Function //
///////////////////////////////////////////////
// No Arguments //
///////////////////////////////////////////////
function img_upload() {
global $HTTP_POST_FILES;
$filename = $HTTP_POST_FILES['form_fields']['name'][$this->img_fname];
$filename_tmp = $HTTP_POST_FILES['form_fields']['tmp_name'][$this->img_fname];
$size = GetImageSize($filename_tmp);
$img_type = $size[2];
if ($img_type != 2) {
return false;
}
if ($img_unique == 1) {
// Name Images unqiuely with UNIX time
$filename_new = time() . ".jpg";
}
else {
// Keep original filename
$filename_new = $filename;
}
if (is_uploaded_file($filename_tmp)) {
$save_loc = $this->img_path . $filename_new;
// Move the Uploaded file to the correct Directory
move_uploaded_file($filename_tmp, $save_loc);
chmod($save_loc, 0755);
// Make and Save Thumbnail image
$thumb_save_loc = $this->img_path . "sm" . $filename_new;
$size = GetImageSize($save_loc);
$width = $size[0];
$height = $size[1];
$new_w = $width / 1.40;
$new_h = $height / 1.40;
$new_w = ceil($new_w);
$new_h = ceil($new_h);
$src_img = imagecreatefromjpeg($save_loc);
$dst_img = imagecreate($new_w,$new_h);
imagecopyresized($dst_img,$src_img,0,0,0,0,$new_w,$new_h,imagesx($src_img),imagesy($src_img));
imagejpeg($dst_img, "$thumb_save_loc");
return $filename_new;
}
}
}
?>
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