Hola a todos aqui estoy con mi primera classe que sirve para subir archivos, y redimensionar imagenes, no se porque pero al final he puesto todo en ingles, empece a hacerlo en euskera pero... no se venadas mias:
Código PHP:
<?php
class ufri // upload file & resize image
{
var $file_form_name; // name in the form, default=file
var $where; // directory where upload file, default=./
var $max_file_size; // max file size, default=2048000 ' 2MB
var $replace; // to replace existing file, values 'Yes' or 'No', Default=No
var $random; // create aleatory numer to not overwrite existing file, values 'Yes' or 'No', Default=No
//
var $name; // name of file to resize, obligatory
var $max_width; // maximum width of file, default 200 pixel
var $max_height; // maximum heught of file, default 200 pixel
var $scalable; // scalable values 'Yes' or 'No', default=Yes
var $wheretocopy; // where to copy the new image, default=$where
//
function uf() // upload file
{
// Default options assignation
//
$file_form_name=$this->file_form_name;
if($file_form_name==NULL)
{
$file_form_name="file";
}
$where=$this->where;
if($where==NULL)
{
$where="./";
}
$max_file_size=$this->max_file_size;
if($max_file_size==NULL)
{
$max_file_size=2048000;
}
$replace=$this->replace;
if($replace==NULL)
{
$replace="No";
}
$random=$this->random;
if($random==NULL)
{
$random="No";
}
// -> End of default options assignation
if($_FILES[$file_form_name]['size']>$max_file_size)
{
return array("Error","The file: ".$_FILES[$file_form_name]['name']." size: ".$_FILES[$file_form_name]['size']." is bigger than ".$max_file_size);
}
else
{
if(file_exists($where.$_FILES[$file_form_name]['name']))
{
if($replace=="No")
{
if($random=="No")
{
return array("Error","Error the file: ".$_FILES[$file_form_name]['name']." exist");
}
elseif($random=="Yes")
{
$tmp_file=$_FILES[$file_form_name]['name'];
$tmp_name=substr($_FILES[$file_form_name]['name'],0,strlen($_FILES[$file_form_name]['name'])-strlen(strrchr($_FILES[$file_form_name]['name'],'.'))); // name without extension
$tmp_extension=strrchr($_FILES[$file_form_name]['name'],'.'); // name with extension, includes dot .
//
while(file_exists($where.$tmp_file))
{
mt_srand((double)microtime()*1000000);
$tmp_file=$tmp_name.mt_rand(0,99999).$tmp_extension;
$_FILES[$file_form_name]['name']=$tmp_file;
}
if(copy($_FILES[$file_form_name]['tmp_name'],$where.$_FILES[$file_form_name]['name']))
{
// OK :)
$this->name=$_FILES[$file_form_name]['name'];
}
else
{
return array("Error","Error copying: ".$_FILES[$file_form_name]['name']." file in path: ".$where);
}
}
}
elseif($replace=="Yes")
{
if(copy($_FILES[$file_form_name]['tmp_name'],$where.$_FILES[$file_form_name]['name']))
{
// OK :)
$this->name=$_FILES[$file_form_name]['name'];
}
else
{
return array("Error","Error copying: ".$_FILES[$file_form_name]['name']." file in path: ".$where);
}
}
}
else
{
if(copy($_FILES[$file_form_name]['tmp_name'],$where.$_FILES[$file_form_name]['name']))
{
// OK :)
$this->name=$_FILES[$file_form_name]['name'];
}
else
{
return array("Error","Error copying: ".$_FILES[$file_form_name]['name']." file in path: ".$where);
}
}
} // else
} // function uf
function ri() // resize image, jpg/jpeg, gif and png file types
{
// Default options assignation
//
$name=$this->name;
$where=$this->where;
//
$scalable=$this->scalable;
if($scalable==NULL)
{
$scalable="Yes";
}
$max_width=$this->max_width;
if($max_width==NULL)
{
$max_width=200;
}
$max_height=$this->max_height;
if($max_height==NULL)
{
$max_height=200;
}
$wheretocopy=$this->wheretocopy;
if($wheretocopy==NULL)
{
$wheretocopy=$where;
}
// -> End of default options assignation
if(!file_exists($where.$name))
{
return array("Error","Error ".$where.$name." file doesn't exist");
}
else
{
if(strtolower(substr($name,strlen($name)-3,3))!="jpg" && strtolower(substr($name,strlen($name)-4,4))!="jpeg" && strtolower(substr($name,strlen($name)-3,3))!="gif" && strtolower(substr($name,strlen($name)-3,3))!="png")
{
return array("Error","The file ".$name." isn't image");
}
else // file type ok
{
$InfoImage=getimagesize($where.$name);
//
$width=$InfoImage[0];
$height=$InfoImage[1];
//
if($scalable=="Yes")
{
if($height>$max_height || $width>$max_width)
{
if($height>$width)
{
$ratio=$height/$width;
$width=$max_width/$ratio;
$height=$max_height;
}
elseif($height<$width)
{
$ratio=$width/$height;
$height=$max_height/$ratio;
$width=$max_width;
}
else
{
$ratio=1;
$height=$max_height;
$width=$max_width;
}
} // end if($height>$max_height || $width>$max_width)
} // scalable
else
{
$width=$max_width;
$height=$max_height;
}
// type: 1 gif, 2 jpg, 3 png
$type=$InfoImage[2];
switch($type)
{
case 1: //gif
{
$img = ImageCreateFromGIF($where.$name);
$thumb = imagecreatetruecolor($width,$height);
imagecopyresampled($thumb,$img,0,0,0,0,$width,$height,imagesx($img),imagesy($img));
ImageGIF($thumb,$wheretocopy.$name,100);
break;
}
case 2: //jpg,jpeg
{
$img = ImageCreateFromJPEG($where.$name);
$thumb = imagecreatetruecolor($width,$height);
imagecopyresampled($thumb,$img,0,0,0,0,$width,$height,imagesx($img),imagesy($img));
ImageJPEG($thumb,$wheretocopy.$name,100);
break;
}
case 3: //png
{
$img = ImageCreateFromPNG($where.$name);
$thumb = imagecreatetruecolor($width,$height);
imagecopyresampled($thumb,$img,0,0,0,0,$width,$height,imagesx($img),imagesy($img));
ImagePNG($thumb,$wheretocopy.$name);
break;
}
} // switch
} // end else file type ok
} // else
} // end ri
} // class
?>
Un poco de explicacion:
var $file_form_name; // nombre en el formulario por defecto=file
var $where; // a que carpeta subiremos el archivo, default=./
var $max_file_size; // tamaño maximo de archivo, default=2048000 ' 2MB
var $replace; // para reemplazar archivo, values 'Yes' or 'No', Default=No
var $random; // crear numero aleatorio para no sobreescribir el fichero, values 'Yes' or 'No', Default=No
//
var $name; // nombre del fichero
var $max_width; // maximo de ancho, default 200 pixel
var $max_height; // maximo del altura, default 200 pixel
var $scalable; // escalar 'Yes' or 'No', default=Yes
var $wheretocopy; // karpeta donde queremos copiarlo, default= where (lo reemplaza)
Ejemplo:
Código PHP:
<?php
include("functions.php");
if($_GET["Bota"]=="Bai")
{
//
$file = new ufri;
$file->replace="Yes";
$a=$file->uf();
//
if($a[0]=="Error")
{
echo $a[1];
}
//
$file->scalable="Yes";
$file->max_width=800;
$file->max_height=800;
$file->wheretocopy="./images/";
$a=$file->ri();
if($a[0]=="Error")
{
echo $a[1];
}
exit();
}
?>
Código HTML:
<html>
<head>
</head>
<body>
<form action="?Bota=Bai" method="post" enctype="multipart/form-data">
<input type="file" name="file" /><br/>
<input type="submit" value="value"/>
</form>
</body>
</html>
Bueno esta es la version 1.0, tengo previsto ponerle una funcion para restringir extensiones.
Pedonad por mi penoso ingles y mi horrible castellano.
Eskerrik asko ;)