Eseguire upload multipli con PHP

**marketto** · 27-12-2004, 14:58

Ciao, avete bisogno di effettuare un'upload multiplo con php?? Bene, il seguente codice potrebbe fare al caso vostro

prima di tutto vi consiglio di leggere questo: Upload con PHP

Il tutto si compone di 3 file:
config.php <-- il file di configurazione
upload.class.php <-- il file della classe per eseguire l'upload
esterno.js <-- file javascript con il codice per mostrare i campi file multipli (http://www.xaraya.com/index.php/xarbb/topic/269)

Per fare i primi test create un file index.php con il seguente codice:

codice:

<?php
error_reporting(E_ALL);
require_once("config.php");
require_once("upload.class.php");

// ISTANZIA LA CLASSE
$upload=new upload();
// SE L'ARRAY $_FILES CONTIENE QUALCOSA ESEGUI IL CODICE PER CARICARE I FILE
if (count($_FILES) > 0)
	$upload->caricafile();
// ALTRIMENTI MOSTRA IL FORM PER L'UPLOAD
else
	$upload->mostraform();
?>

il codice potrà essere aggiornato/modificato aggiungendo nuove funzioni, così come la parte HTML del form (uso di fogli di stile, etc.).

---------------------------------------------------------
file config.php

codice:

<?php
$dir_upload=""; // DIRECTORY DOVE EFFETTUARE L'UPLOAD
$chmod_dir=0700; // PERMESSI DELLA DIRECTORY
$debug=0; // 1=STAMPA ALCUNE SEMPLICI INFORMAZIONI DI DEBUG, 0=NON STAMPARE
$sovrascrivi_file=0; // 1=SOVRASCRIVI I FILES SE ESISTENTI, 0=NON SOVRASCRIVERE I FILES
$dim_massima=500; // DIMENSIONE MASSIMA UPLOAD IN KB
$check_tipi=1; //1=CONTROLLA IL TIPO DI FILE, 0=NON CONTROLLARE
$tipi_permessi=array( //ARRAY PER ALCUNI TIPI DI FILE
	"text/plain",
	"text/html",
	"text/xml",
	"image/jpeg",
	"image/gif",
	"image/png",
	"video/mpeg",
	"audio/midi",
	"application/x-zip-compressed",
	"application/vnd.ms-excel",
	"application/x-msdos-program",
	"application/octet-stream"
);
?>

---------------------------------------------------------
file upload.class.php

codice:

<?php
// file upload.class.php
//
// Marco Barcaro
// 27/12/2004
// Testato con Apache 1.3.29, PHP 4.3.10, su winXP
// Testato con Apache 1.3.26, PHP 4.1.2, su Debian

$dir_upload=(substr($dir_upload,-1) != "/" && $dir_upload != "") ? $dir_upload."/" : $dir_upload;
define("DIR_UPLOAD",$dir_upload);
define("CHMOD_DIR",$chmod_dir);
define("DEBUG",$debug);
define("SOVRASCRIVI_FILE",$sovrascrivi_file);
define("DIM_MASSIMA",$dim_massima*1024);
define("CHECK_TIPI",$check_tipi);
define("TIPI_PERMESSI",implode("|",$tipi_permessi));

class upload {
	function upload(){
	}

	function caricafile(){
		//CODICE PER L'UPLOAD CON VARI CONTROLLI
		if (count($_FILES) > 0){
			$numero_file= count($_FILES['file']['tmp_name']);
			for($i=0;$i<$numero_file;$i++){
				if($_FILES['file']['size'][$i] == 0){
					echo "L'UPLOAD DEL FILE {$_FILES['file']['name'][$i]} NON E' ANDATO A BUON FINE!
\n";
					unset( $_FILES['file']['name'][$i]);
					unset( $_FILES['file']['type'][$i]);
					unset( $_FILES['file']['size'][$i]);
					unset( $_FILES['file']['error'][$i]);
					unset( $_FILES['file']['tmp_name'][$i]);
				}
			}
			$numero_file=count( $_FILES['file']['tmp_name']);
			echo "Hai caricato $numero_file file(s)";
			echo "

\n";
			foreach($_FILES['file']['name'] as $chiave=>$valore){
				if (DEBUG == 1){
					echo "Nome file: ".$_FILES['file']['name'][$chiave]."
\n";
					echo "Tipo file: ".$_FILES['file']['type'][$chiave]."
\n";
					echo "Dimensione: ".$_FILES['file']['size'][$chiave]." byte
\n";
					echo "Nome temporaneo: ".$_FILES['file']['tmp_name'][$chiave]."
\n";
				}
				if (is_uploaded_file( $_FILES['file']['tmp_name'][$chiave])){
					if ($_FILES['file']['size'][$chiave] <= DIM_MASSIMA){
						if(CHECK_TIPI == 0 || (CHECK_TIPI == 1 && in_array( $_FILES['file']['type'][$chiave], explode("|",TIPI_PERMESSI)))){
							if(!is_dir(DIR_UPLOAD) && DIR_UPLOAD != ""){
								if( !@mkdir(DIR_UPLOAD,CHMOD_DIR))
									die("ERRORE NELLA CREAZIONE DELLA DIRECTORY ".DIR_UPLOAD."");
							}
							if(!file_exists(DIR_UPLOAD.$_FILES['file']['name'][$chiave]) || SOVRASCRIVI_FILE == 1){
								if (@move_uploaded_file( $_FILES['file']['tmp_name'][$chiave], DIR_UPLOAD.$_FILES['file']['name'][$chiave]))
									echo "FILE {$_FILES['file']['name'][$chiave]} TRASFERITO!";
								else
									die("ERRORE NEL TRASFERIMENTO DEL FILE ".$_FILES['file']['name'][$chiave]."");
							} else
								echo ("IL FILE ".$_FILES['file']['name'][$chiave]." E' ESISTENTE!");
						} else 
							echo ("IL TIPO DI FILE ".$_FILES['file']['type'][$chiave]." NON E' CONSENTITO!");
					} else
						echo ("LA DIMENSIONE DEL FILE ".$_FILES['file']['type'][$chiave]." NON E' CONSENTITA!");
				} else
					die("ERRORE NEL TRASFERIMENTO DEL FILE ".$_FILES['file']['name'][$chiave]."");
				echo "<hr />\n";
			}
		}
	}

	function mostraform(){
		//FORM PER EFFETTUARE L'UPLOAD
		echo "<html>
		<head>
		<script type=\"text/javascript\" src=\"esterno.js\"></script>
		</head>
		<body>
		<form action=\"{$_SERVER['PHP_SELF']}\" method=\"POST\" name=\"modulo\" enctype=\"multipart/form-data\">
		<div id=\"attachment\" style=\"display:none\">
			 <input id=\"file\" name=\"file\" type=\"file\" size=\"55\" />
			 <a href=\"#\" onclick=\"javascript:removeFile(this.parentNode.parentNode,this.parentNode);\"> Rimuovi</a>
		</div>
		<div id=\"attachments\">
			
<a id=\"addupload\" href=\"javascript:addUpload('file')\">Aggiungi file</a>


			<input name=\"file[]\" type=\"file\" size=\"55\" />
			<span id=\"attachmentmarker\"></span>	
		</div>
		<input type=\"hidden\" name=\"MAX_FILE_SIZE\" value=\"".DIM_MASSIMA."\" />
		<input type=\"submit\" value=\"invia\" />
		</form>
		</body>
		</html>\n";
	}
}
?>

---------------------------------------------------------
file esterno.js

codice:

var max = 0;				// maximum # of attachments allowed
var currentUploads = 0;		// current # of attachment sections on the web page
var nameDesc = '';			// Name property for the Description Input field
var nameFile = '';			// Name property for the File Input field
var scrollPosVert = 0;		// stores the current scroll position on the form

// for some reason when a div is taken out, the form
// will scroll to the top on both Firefox and IE

// SCROLL FUNCTIONS
function saveScrollPos(offset){
	scrollPosVert=(document.all)?document.body.scrollTop:window.pageYOffset-offset;
}

function setScrollPos(){
	window.scrollTo(0, scrollPosVert);
	setTimeout('window.scrollTo(0, scrollPosVert)',1);
}


// This function adds a new attachment section to the form
// It is called when the user clicks the "Attach a file" button...
// It takes three arguments:
//      maxUploads			- the maximum number of attachments allowed
//		descFieldName		- the field name for the Description Input field
//		fileFieldName		- the field name for the File Input field
function addUpload(fileFieldName){
	nameFile=fileFieldName;
	currentUploads++;
	if (currentUploads>0)
		document.getElementById('addupload').childNodes[0].data='Aggiungi file';
	// First, clone the hidden attachment section
	var newFields = document.getElementById('attachment').cloneNode(true);
	newFields.id = '';
	// Make the new attachments section visible
	newFields.style.display = 'block'; 
	// loop through tags in the new Attachment section
	// and set ID and NAME properties
	//
	// NOTE:	the control names for the Description Input
	//			field and the file input field are created
	//			by appending the currentUploads variable
	//			value to the nameFile and nameDesc values
	//			respectively
	//
	//			In terms of Xaraya, this means you'll need to name your
	//			DD properties will need names like the following:
	//				"AttachmentDesc1"
	//				"AttachmentFile1"
	//				"AttachmentDesc2"
	//				"AttachmentFile2"
	//				"AttachmentDesc3"
	//				"AttachmentFile3"
	//				et cetera...
	var newField = newFields.childNodes;
	for (var i=0;i<newField.length;i++){
		if (newField[i].name==nameFile){
			newField[i].id=nameFile+currentUploads;
			newField[i].name=nameFile+'[]';
			//newField[i].name=nameFile+currentUploads;
		}
	}
	// Insert our new Attachment section into the Attachments Div
	// on the form...
	var insertHere = document.getElementById('attachmentmarker');
	insertHere.parentNode.insertBefore(newFields,insertHere);
}



// This function removes an attachment from the form
// and updates the ID and Name properties of all other
// Attachment sections 
function removeFile(container, item){
	// get the ID number of the upload section to remove
	var tmp = item.getElementsByTagName('input')[0];
	var basefieldname = '';
	basefieldname = nameFile;
	var iRemove=Number(tmp.id.substring(basefieldname.length, tmp.id.length));
	// Shift all INPUT field IDs and NAMEs down by one (for fields with a
	// higher ID than the one being removed)
	var x = document.getElementById('attachments').getElementsByTagName('input');
	for (i=0;i<x.length;i++){
		basefieldname=nameFile;
		var iEdit = Number(x[i].id.substring(basefieldname.length, x[i].id.length));
		if (iEdit>iRemove){
			x[i].id=basefieldname+(iEdit-1);
			x[i].name=basefieldname+(iEdit-1);
		}
	}

	// Run through all the DropCap divs (the number to the right of the attachment
	// section) and update that number...
	x=document.getElementById('attachments').getElementsByTagName('div');
	for (i=0;i<x.length;i++){
		// Verify this is actually the "dropcap" div
		if (x[i].id.substring(0, String('dropcap').length)=='dropcap'){
			ID = Number(x[i].id.substring(String('dropcap').length, x[i].id.length));
			// check to see if current attachment had a higher ID than the one we're
			// removing (and thus needs to have its ID dropped)
			if (ID>iRemove){
				x[i].id='dropcap'+(ID-1);
				x[i].childNodes[0].data=(ID-1);
			}
		}
	}

	currentUploads--;
	saveScrollPos(0);
	container.removeChild(item);
	setScrollPos();
	document.getElementById('addupload').style.visibility='visible';
	if (currentUploads==0)
		document.getElementById('addupload').childNodes[0].data='Aggiungi file';
}

Discussione: Eseguire upload multipli con PHP

Strumenti discussione

Ricerca discussione

Visualizza

Hybrid View

[PILLOLA] Eseguire upload multipli con PHP

Permessi di invio