83 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			83 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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/**
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 * Project:     SmartyValidate: Form Validator for the Smarty Template Engine
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 * File:        validate_criteria.isFileSize.php
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 * Author:      Monte Ohrt <monte at newdigitalgroup dot com>
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 *
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 * This library is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2.1 of the License, or (at your option) any later version.
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 *
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 * This library is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with this library; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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 *
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 * @link http://www.phpinsider.com/php/code/SmartyValidate/
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 * @copyright 2001-2005 New Digital Group, Inc.
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 * @author Monte Ohrt <monte at newdigitalgroup dot com>
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 * @package SmartyValidate
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 */
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/**
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 * test if a value is a valid file size.
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 *
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 * @param string $value the value being tested
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 * @param boolean $empty if field can be empty
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 * @param array params validate parameter values
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 * @param array formvars form var values
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 */
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function smarty_validate_criteria_isFileSize($value, $empty, &$params, &$formvars) {
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    $_field = $params['field'];
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    $_max = isset($params['field2']) ? $params['field2'] : trim($params['max']);
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    if(!isset($_FILES[$_field]))
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        // nothing in the form
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        return false;
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    if($_FILES[$_field]['error'] == 4)
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        // no file uploaded
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        return $empty;
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    if(!isset($_max)) {
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        trigger_error("SmartyValidate: [isFileSize] 'max' attribute is missing.");        
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        return false;           
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    }
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    if(!preg_match('!^(\d+)([bkmg](b)?)?$!i', $_max, $_match)) {
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        trigger_error("SmartyValidate: [isFileSize] 'max' attribute is invalid.");        
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        return false;   
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    }
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    $_size = $_match[1];
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    $_type = strtolower($_match[2]);
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    switch($_type) {
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        case 'k':
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            $_maxsize = $_size * 1024;            
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            break;
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        case 'm':
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            $_maxsize = $_size * 1024 * 1024;            
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            break;
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        case 'g':
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            $_maxsize = $_size * 1024 * 1024 * 1024;
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            break;
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        case 'b':
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        default:
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            $_maxsize = $_size;
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            break;   
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    }
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    return $_FILES[$_field]['size'] <= $_maxsize;
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}
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?>
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