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Staro 28. 01. 2013.   #15
sinisake
član
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Datum učlanjenja: 25.07.2008
Poruke: 76
Hvala: 15
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I, evo, zahvaljujuci nesebicnoj webartovoj pomoci, poboljsane verzije:
PHP kd:
<?php
class Validator
    
{
    public function 
__construct($prefix
        {
            
         foreach (
$_POST as $key=>$value)
           {
              
            if(
strpos($key,$prefix)!==false
            {
                
$_SESSION[$key]=$value;
            }
               
           }
            
        }
    public 
$errors = array( );
    public 
$output = array( );
    public function 
process$vars )
        {
        for ( 
$i 0$i count$vars ); $i++ )
            {
            
$title $vars$i ][ ];
            
$rules $vars$i ][ ];
            
$var   $vars$i ][ ];
            
//check required field
            
if ( strpos$rules'req' ) !== false )
                {
                if ( 
$this->required$var ) )
                    {
                    
$this->errors[] = $title " is required field!";
                    }
                }
            
//only text is allowed
            
if ( strpos$rules'text' ) !== FALSE )
                {
                if ( 
$this->only_text$var ) )
                    {
                    
$this->errors[] = $title ' field should contain only letters!';
                    }
                }
            
//only numbers are allowed
            
if ( strpos$rules'num' ) !== FALSE )
                {
                if ( 
$this->only_numbers$var ) )
                    {
                    
$this->errors[] = $title ' field should contain only numbers!';
                    }
                }
            
//check minimal number of chars
            
if ( strpos$rules'min=' ) !== false )
                {
                
$num $this->min$var$rules );
                if ( 
is_numeric$num ) )
                    {
                    
$this->errors[] = $title " should have at least $num characters!";
                    }
                elseif ( 
$num === false )
                    {
                    
$this->errors[] = 'Invalid rule.';
                    }
                }
            
//check max number of chars
            
if ( strpos$rules'max=' ) !== false )
                {
                
$num $this->max$var$rules );
                if ( 
is_numeric$num ) )
                    {
                    
$this->errors[] = $title " should have at most $num characters!";
                    }
                elseif ( 
$num === false )
                    {
                    
$this->errors[] = 'Invalid rule.';
                    }
                }
            
//check email
            
if ( strpos$rules'valid_email' ) !== FALSE )
                {
                if ( 
$this->valid_email$var ) )
                    {
                    
$this->errors[] = $title ' is not a valid email address!';
                    }
                }
            
//check single checkbox
            
if ( strpos$rules'type:check_single' ) !== FALSE )
                {
                if ( 
$this->single_checkbox$var$rules ) )
                    {
                    
$this->errors[] = $title " wrong entry!";
                    }
                }
            
//check checkbox group
            
if ( strpos$rules'type:check_multi' ) !== FALSE )
                {
                if ( 
$this->multi_checkbox$var$rules ) )
                    {
                    
$this->errors[] = $title " wrong entry!";
                    }
                }
            
//check radio buttons group
            
if ( strpos$rules'type:radio' ) !== FALSE )
                {
                if ( 
$this->radio_group$var$rules ) )
                    {
                    
$this->errors[] = $title " wrong entry!";
                    }
                }
            
//only letters & numbers are allowed
            
if ( strpos$rules'alpha_digit' ) !== FALSE )
                {
                if ( 
$this->alpha_digit$var ) )
                    {
                    
$this->errors[] = $title ' field should contain only letters and/or numbers!<br />';
                    }
                }
            
//custom chars
            
if ( strpos$rules'custom' ) !== FALSE )
                {
                if ( 
$this->custom$var$rules ) )
                    {
                    
$this->errors[] = $title " contains disallowed char(s)!<br />";
                    }
                }
            if ( !
is_array$var ) )
                {
                
$this->output[] = $title ' : ' $var '<br />';
                }
            else
                {
                
$this->output[] = $title ' : ' implode','$var ) . '<br />';
                }
            }
        if ( !empty( 
$this->errors ) )
            {
            return 
false;
            }
        else
            {
            return 
true;
            }
        }
    
//required field
    
private function required$var )
        {
        return empty( 
$var );
        }
    
//only text
    
private function only_text$var )
        {
        if ( 
preg_match'%[^A-Za-z ]%'$var ) )
            return 
true;
        }
    
//only numbers
    
private function only_numbers$var )
        {
        if ( 
preg_match'%[^0-9. ]%'$var ) )
            return 
true;
        }
    
// letters and numbers allowed
    
private function alpha_digit$var )
        {
        if ( 
preg_match'%[^A-Za-z0-9 ]%'$var ) )
            return 
true;
        }
    
//valid email
    
private function valid_email$var )
        {
        if ( !
filter_var$varFILTER_VALIDATE_EMAIL ) )
            {
            return 
true;
            }
        }
    
//min number of chars
    
private function min$var$rules )
        {
        
preg_match'%min=([0-9]{1,10})%'$rules$match );
        if ( empty( 
$match] ) )
            return 
false;
        return 
strlen$var ) < (int) $match] ? $match] : true;
        }
    
//max number of chars
    
private function max$var$rules )
        {
        
preg_match'%max=([0-9]{1,10})%'$rules$match );
        if ( empty( 
$match] ) )
            return 
false;
        return 
strlen$var ) > (int) $match] ? $match] : true;
        }
    
//check checkbox value    
    
public function single_checkbox$var$rules )
        {
        
preg_match'%value:[0-9A-Za-z]{1,20}%'$rules$match );
        
$value str_replace'value:'''$match] );
        if ( !empty( 
$var ) )
            if ( 
$var != $value )
                {
                return 
true;
                }
        }
    
//check checkboxes group value
    
private function multi_checkbox$var$rules )
        {
        if ( 
preg_match'%values:[()0-9A-Za-z,]{1,200}%'$rules$match ) )
            {
            
$replace      = array(
                 
'values:',
                
'(',
                
')' 
            
);
            
$values       str_replace$replace''$match] );
            
$values_array explode','$values );
            }
        if ( !empty( 
$var ) )
            foreach ( 
$var as $val )
                {
                if ( !
in_array$val$values_array ) )
                    return 
true;
                }
        }
    
//check radio group values
    
private function radio_group$var$rules )
        {
        if ( 
preg_match'%values:[()0-9A-Za-z,]{1,200}%'$rules$match ) )
            {
            
$replace      = array(
                 
'values:',
                
'(',
                
')' 
            
);
            
$values       str_replace$replace''$match] );
            
$values_array explode','$values );
            }
        if ( !empty( 
$var ) )
            if ( !
in_array$var$values_array ) )
                return 
true;
        }
    
//check custom 
    
private function custom$var$rules )
        {
        if ( 
preg_match'%\[.+\]%'$rules$match ) )
            {
            
$rule $match];
            }
        if ( 
preg_match"%" $rule "%"$var ) )
            return 
true;
        }
    }
?>
upotreba i hm... dokumentacija

PHP kd:
<?php 
error_reporting
(0);
session_start();
$prefix='frm_';
include(
'validator.php');
$validator= new Validator($prefix);

?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>

<body>
<form action="" method="post">
Please enter your name: <br  />
<input name="frm_name" type="text" value="<?php echo $_SESSION["frm_name"]; ?>" />
<br />
Please enter your email: <br  />
<input name="frm_email" type="text" value="<?php echo $_SESSION["frm_email"]; ?>" />
<br />
Please enter some number: <br  />
<input name="frm_number" type="text" value="<?php echo $_SESSION["frm_number"]; ?>" />
<br />
I agree with terms and conditions: 
<input name="frm_terms" type="checkbox" value="1" <?php if($_SESSION['frm_terms']=='1') echo 'checked'  ?> />
<br />
Vehicle:<br />
<input type="checkbox" name="frm_vehicle[]" value="Bike" <?php if(in_array('Bike',$_SESSION["frm_vehicle"])) echo 'checked';  ?>  >I have a bike<br>
<input type="checkbox" name="frm_vehicle[]" value="Car"  <?php if(in_array('Car',$_SESSION["frm_vehicle"])) echo 'checked';  ?> >I have a car<br>
 <input type="checkbox" name="frm_vehicle[]" value="Plane"<?php if(in_array('Plane',$_SESSION["frm_vehicle"])) echo 'checked';  ?>  >I have a plane<br> 
<br />
Gender:<br />
<input type="radio" name="frm_gender" value="male" <?php if($_SESSION['frm_gender']=='male') echo 'checked'  ?> >Male<br />
<input type="radio" name="frm_gender" value="female"<?php if($_SESSION['frm_gender']=='female') echo 'checked'  ?>  >Female<br />
<br />
How did you hear about us: <br />
<select name="frm_how">
<option value="0">Please select one option</option>
<option value="Google">Google</option>
<option value="Radio">Radio</option>
<option value="TV">TV</option>
<option value="Other">Other</option>
</select>
<br />
Numbers and text:<br />
<input name="frm_numbtext" type="text" value="<?php echo $_SESSION['frm_numbtext']; ?>" />
<br />
Message:<br />
<textarea name="frm_message" cols="" rows="" style="width:250px;height:130px;"><?php echo $_SESSION['frm_message']; ?></textarea>
<br /><br />
<input name="submit" type="submit" value="Submit" />
</form>
<?php

if(isset($_POST['submit'])) 

{

// Set variable description titles (used for error messages), names, and validation rules + type of fields (checkboxes and radio buttons).
/*
req=required field
text=only letters are allowed
min = minimal number of characters
max = maximal number of characters
valid_email = obviously... :)
num = only numeric chars
alpha_digit = numbers&letters allowed
custom = format:[^your custom list of allowed characters in field]

types: 
check_single - single check box
check_multi - checkbox group
radio - radio buttons group



//rules for check box -> check_single -> one checkbox, value:-> check for exact value! check_multi -> checkbox group values:-> check for exact values!

*/    
$vars = array

array(
"Name"'req|text|min=6|max=20' $_POST['frm_name']),
array(
"Email"'valid_email' $_POST['frm_email']),
array(
"Test Number"'req|num|max=4' $_POST['frm_number']),
//single checkbox setup -> additional fields: type, checked value
array("Terms and Conditions"'req|type:check_single|value:1' $_POST['frm_terms']),
//single checkbox setup -> additional fields in rules section: type, multiple checkboxes, checked values
array("Vehicle"'req|type:check_multi|values:(Bike,Car,Plane)' $_POST['frm_vehicle']),
// Radio button group setup -> additional fields in rules section: type, checked values
array("Gender"'req|type:radio|values:(male,female)' $_POST['frm_gender']),
// select dropdown setup
array("How did you hear about us"'req|text' $_POST['frm_how']),
//letters and text validation
array("Numbers and text"'req|alpha_digit' $_POST['frm_numbtext']),

//custom regex setup -> add custom ALLOWED characters, if variable contains any other chars - validation will fail -> format: [^custom chars]
array("Message"'req|custom[^A-Za-z0-9-,.\r\n!?= ]' $_POST['frm_message'])


 ); 



if(!
$validator->process($vars)) 
{
foreach (
$validator->errors as $error
{
echo 
$error.'<br />';    
    
}
    
}
else 

{
foreach (
$validator->output as $line
{
echo 
$line;    
    
}
}

    
}

?>
</body>
</html>
Uskoro - jos suvisnih klasa.
Samo, moracu da smislim nesto malo egzoticnije i koliko-toliko korisnije, kao predmet klase.
Da, hvala na ovom linku za bjutifajer... jes' ga ulepsao, skoro ko pravi koder da je pis'o...
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