PHP - Validating Using Class - Not Working :(

Ok. I know you can pass the object of a class as an argument. Example:


class A {
    function test() {
        echo "This is TEST from class A";
    }
}


class B {
    function __construct( $obj ) {
        $this->a = $obj;
    }

    function test() {
       $this->a->test();
    }

}


Then you could do:

$a = new A();
$b = new B($a);


Ok so that's one way i know of.

I also thought that you could make a method static, and do this: (assuming class A's test is 'static')

class B {
    function test() {
       A::test(); 
   }
}


But that is not working.


I'd like to know all possible ways of accomplishing this. Any hints are appreciated. thanks

Hi

Can you call Class A's methods or properties from Class B's methods?

Thanks.

Hi,

I need to be able to call a class based on variables.  E.G.

I would normally do:
Code: [Select]
$action = new pattern1()
but i would like to be able to do it dynamicaly:
Code: [Select]
$patNum = 1;
$action = new pattern.$patNum.()
Im wondering if that's possible?  If so what would the correct syntax be?

Many Thanks.

I have two classes:

## Admin.php

<?php
class Admin
{
public function __construct()
{
include("Config.php");
}

/**
* deletes a client
* @returns true or false
*/
function deleteClient($id)
{
return mysql_query("DELETE FROM usernames WHERE id = '$id'");
}
}
?>


## Projects.php

<?php
class Projects
{
public function __construct()
{
include("Config.php");
$this->admin = $admin;
$this->dataFolder = $dataFolder;
}

/**
* Deletes a project
* @returns true or false
*/
function deleteProject($id)
{
$root  = $_SERVER['DOCUMENT_ROOT'];
$theDir  = $root . $this->dataFolder;
$sql  = mysql_query("SELECT * FROM projectData WHERE proj_id = '$id'");
while ($row = mysql_fetch_array($sql))
{
$mainFile = $row['path'];
$thumb = $row['thumbnail'];
if ($thumb != 'null')
{
unlink($theDir . "/" . substr($thumb,13));
}
unlink($theDir . "/" . substr($mainFile,13));
}
$delete = mysql_query("DELETE FROM projectData WHERE proj_id = '$id'");
$getDir = mysql_query("SELECT proj_path FROM projects WHERE id = '$id'");
$res = mysql_fetch_array($getDir);
rmdir($theDir . "/" . $res['proj_path']);
return mysql_query("DELETE FROM projects WHERE id = '$id'");
}
}
?>


How can I call deleteProject() from within Admin.php?

Hi people!

class FirstOne{

public function FunctionOne($FirstInput){
//do stuff and output value
return $value1;
}

}


Then:-


class SecondOne{

public function FunctionTwo($AnotherInput){
//do stuff and output value
return $value2;
}

}


What I want to know is this, if I want to use FunctionOne() in Class SecondOne do I do it like this:-

(Assume as I have instantiated the first class using $Test = new FirstOne(); )


class SecondOne{

function SecondedFunction(){
global $Test;
return $Test->FunctionOne();
}

public function FunctionTwo($AnotherInput){
//do stuff and output value
return $value2;
}

public function FunctionThree(){

//some code here
$this->Test->SecondedFunction();<--I think as I can omit the $this-> reference
}
}


My point is: Do I have to do it this way or is there way of having this done through __construct() that would negate the need for a third party function?

I have a version working, I just think that it is a little convoluted in the way as I have done it, so I thought I would ask you guys.

Any help/advice is appreciated.

Cheers
Rw

Hi, I have a user system where people login to my site with their emails. The thing I am after is when a person is registering I want to validate that they have entered a valid email with @.com in the string and not just some repetitive characters e.g. wwwwwww. Could some one guide me what is the best way to check for a valid email and for repetive characters in any given field examle firstname. One last thing I would also like to check that a person only enters Alphabets for name and stuff.

Hello all,

I need your help again. I have this page where the user inputs data:


<?php
include "include/dbc.php";

include "include/header.inc";

#error checking will go here
?>

<style type="text/css">
.mydate{
color:#00F;
text-decoration:underline;
cursor:pointer;
}
</style>

<script type="text/javascript">
function displayDate(d){
var date=new Date();
var D=date.getDate();
date.setDate(D+d);
var YYYY=date.getFullYear();
var MM=date.getMonth()+1;
MM<10?MM='0'+MM:null;
var DD=date.getDate();
DD<10?DD='0'+DD:null;
var span=document.getElementById('date');
span.innerHTML= 'Entries for '+MM+'/'+DD+'/'+YYYY;
}
onload=function(){displayDate(0)};
</script>

<h1>Food Diary</h1>

<div class="full">
<center><div><span class="mydate" onclick="displayDate(-1)"><img src="images/left_arrow.png" border="0">Yesterday</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span id="date" style="font-size:2em;"></span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="mydate" onclick="displayDate(1)">Tomorrow<img src="images/right_arrow.png" border="0"></span></div><br />
<a href="#" onclick="displayDate(0);return false;">Today</a>
</center>

<div class="full">
<form name="exercise" id="exercise" method="GET" action="">
  <center><table>
<tr>
     <td><h3>Add an Activity</h3></td>
</tr>
<tr>
     <td><input name="NewSearchString" style="width: 100px" type="text"/>&nbsp;&nbsp;<input type="submit" value="Search" /> </td>
</tr>
    <tr>
     <td>
         <select name="activity">
             <option value="_">Activity Browse...</option>
                <option value="all">All Activities</option>
                <option value="biking">Biking</option>
                <option value="condition">Conditioning</option>
                <option value="dancing">Dancing</option>
                <option value="fish">Fishing & Hunting</option>
                <option value="Home">Home Activities</option>
                <option value="misc">Miscellaneous</option>
                <option value="music">Music Playing</option>
                <option value="occupation">Occupation</option>
                <option value="running">Running</option>
                <option value="sports">Sports</option>
                <option value="walking">Walking</option>
                <option value="water">Water Activities</option>
                <option value="winter">Winter Activities</option>
</select> &nbsp;&nbsp;<input type="submit" value="Submit" /></td></tr></table></center></form>
</td>
</tr>
</table> </center>
<table width="100%">
    <tr bgcolor="#66CC33">
     <td><div>Activity</div></td>
        <td><div>Specific Activity</div></td>
        <td><div>Time (hh:mm)</div></td>
        <td><div>Distance</div></td>
        <td><div>Units</div></td>
</tr>
    <tr bgcolor="#66CC33">
     <td><div></div></td>
      <td><div></div></td>
       <td><div></div></td>
        <td><div class="Float"></div></td>
        <td class="cp_Distance"><div></div></td>
</tr>
<?php
if(isset($_GET[activity])) {
$category=$_GET[activity];
$result = mysql_query("SELECT * FROM exercise WHERE type='$category'");
?>
<form action="add_activity.php" method="POST">
<?php
while($row = mysql_fetch_array($result)) {
echo '<tr><td><div>'.$row[Type].'</div></td>';
echo '<td><div>'.$row[Name].'<input type="hidden" name="exerciseid[]" value="'.$row[Name].'"></div></td>';
echo '<td><div><input type="text" name="duration['.$row['Name'].']"></div></td>';
echo '<td><div><input type="text" name="distance['.$row['Name'].']"></div></td>';
echo '<td><div><select name="metric[]">
<option value=""></option>
         <option value="mile">mile</option>
             <option value="Km">km</option>
             <option value="M">m</option>;
             <option value="Yard">yrd</option>
             <option value="Feet">ft</option>
            </select></div></td></tr>';
echo'<input type="hidden" name="submitted" value="1">';

}
mysql_close();
?>

<tr><td colspan="6" align="center"><input type="submit" name="submit" value="Add Activities" onClick="return confirm(
  'Are you sure you want to submit the activities?');"></td></tr>
</form>
<?php
}
?>
    <tr bgcolor="#66CC33">
     <td><div></div></td>
      <td><div></div></td>
       <td><div></div></td>
        <td><div class="Float"></div></td>
        <td class="cp_Distance"><div></div></td>
</tr></table>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<div></div>
<?php include "include/footer.inc"; ?>


I want to validate that the user enters data for at least one of all the fields provided (distance, duration, metric). If someone could help me get started I'd greatly appreciate it.

How much should you validate a First Name?

This is my code...

// Validate First Name.
if (empty($trimmed['firstName'])){
$errors['firstName'] = 'Please enter your First Name.';
}else{
if (preg_match('#^[A-Z \'.-]{2,20}$#i', $trimmed['firstName'])){
$firstName = $trimmed['firstName'];
}else{
$errors['firstName'] = 'First Name must be 2-20 characters (A-Z \' . -)';
}
}

I did this for fear if I left things wide-open it would be a security risk.

And in the U.S. at least, the above would really cover all valid First Names.

Thoughts?



Debbie

This topic has been moved to Other Programming Languages.

http://www.phpfreaks.com/forums/index.php?topic=347582.0

I have the following code below to validate a date that the user types in. But I am getting the following error: "Warning preg_match() [function.preg-match]: Unknown modifier '('"

Code: [Select]
if(!empty($_POST['exp_date'])) {

$pattern = '(^[0-9]{1,2})'    // 1 or 2 digits
                .'([^0-9a-zA-Z])'   // not alpha or numeric
                .'([0-9]{1,2})'     // 1 or 2 digits
                .'([^0-9a-zA-Z])'   // not alpha or numeric
                .'([0-9]{1,4}$)';   // 1 to 4 digits

$exp_date = trim($_POST['exp_date']);

if(preg_match($pattern, $exp_date)){

$pattern = '(^[0-9]{1,2})'    // 1 or 2 digits
                .'([^0-9a-zA-Z])'   // not alpha or numeric
                .'([a-zA-Z]{1,})'   // 1 or more alpha
                .'([^0-9a-zA-Z])'   // not alpha or numeric
                .'([0-9]{1,4}$)';   // 1 to 4 digits

if (preg_match($pattern, $exp_date)){

    $pattern = '(^[a-zA-Z]{1,})'  // 1 or more alpha
                .'([^0-9a-zA-Z])'   // not alpha or numeric
                .'([0-9]{1,2})'     // 1 or 2 digits
                .'([^0-9a-zA-Z])'   // not alpha or numeric
                .'([0-9]{1,4}$)';   // 1 to 4 digits

  if (preg_match($pattern, $exp_date)){
 
$pattern = '(^[a-zA-Z]{1,})'  // 1 or more alpha
                     .'([0-9]{2})'       // 2 digits
                     .'([0-9]{4}$)';     // 4 digits

   if (preg_match($pattern, $exp_date)){
   
      $pattern = '(^[0-9]{4})'      // 4 digits
                          .'([^0-9a-zA-Z])'   // not alpha or numeric
                          .'([0-9]{1,2})'     // 1 or 2 digits
                          .'([^0-9a-zA-Z])'   // not alpha or numeric
                          .'([0-9]{1,2}$)';   // 1 to 2 digits
 
    if (preg_match($pattern, $exp_date)){

    $pattern = '(^[0-9]{2})'      // 2 digits
.'([0-9]{2})'       // 2 digits
.'([0-9]{4}$)';     // 4 digits

   if (preg_match($pattern, $exp_date)){
   
       $pattern = '(^[0-9]{4})'      // 4 digits
  .'([^0-9a-zA-Z])'   // not alpha or numeric
      .'([a-zA-Z]{1,})'   // 1 or more alpha
  .'([^0-9a-zA-Z])'   // not alpha or numeric
  .'([0-9]{1,2}$)';   // 1 to 2 digits
   
   } else {
   
      $errors[]= 'Please enter a valid expiration date.';
 
  } 

} else {

   $errors[]= 'Please enter a valid expiration date.';
   
}   
   
   } else {
   
      $errors[]= 'Please enter a valid expiration date.';
   
   }
 
  } else {
 
      $errors[]= 'Please enter a valid expiration date.';
 
  }

} else {
 
    $errors[]= 'Please enter a valid expiration date.';

}

} else {

   $errors[]= 'Please enter a valid expiration date.';
   
}

} else {

   $errors[]= 'Please input an expiration date.';

}

Hello..

I have Two HTML form and one is a Check boxes form that enable users to select their category. Then I need to display second form according to the categories they selected in first form. I use this code in first form to validate form submission..

      if ( isset( $_POST['category']) && sizeof( $_POST['category']) <= 3) {
      
         $category = $_POST['category'];         
         
      } else {
      
         $errors[] = 'Please select atleast 1, not more than 3 categories';
      }

If errors array is empty I did this..

      if ( empty( $errors )) {  // If everything's OK      
               
         $_SESSION = $category;
         
         $url = 'http://localhost/lanka_institute/tutorsignup/select_subjects.php? // Define the URL.
         ob_end_clean(); // Delete the buffer.
         header("Location: $url");
         exit(); // Quit the script.   
         
      }   


Can I know and is this correct? I display category list from mysql category table, it has category name and category id

this is my html part from first page

      echo '<td width="50%"><input type="checkbox" name="category[]"  vlaue="' . $info['category_id'] . '" />&nbsp;&nbsp;' . $info['category_name'] . '</td>';


any help appreciated.

Thanks in advance..

Hi all,

Hi have a bit of a problem that I am completely stuck on.  I have a form on a website that needs checkboxes to be processed by PHP, but i have no idea how to implement them.  I have found examples, but my knowledge of php is exactly zero, so its confusing the hell out of me.

The website is:

http://www.geelongnannies.com.au/test/employment.html
http://www.geelongnannies.com.au/test/freecontactformprocess3.php
http://www.geelongnannies.com.au/test/freecontactformsettings.php

if anyone can have a look and give me an example of how to change the php to process the checkboxes when submitted, I will be very grateful

cheers!

Hi, what is they best way to validate user input of strings?

A couple of examples would be :

1> If i wanted to check for the existance on the coma ',' character in a string and replace it with a dash '-' character?

2> To check wether a user has entered a valid ip address in the form of x.x.x.x where x can range from 0-255?

I think i may need ereg/preg to do this but i have no idea about how to layout the syntax.

Thanks for looking.

A form on my website uses several drop down boxes.

One to select an id number from a list retrived by a query.

The others to get a start and stop time.  Using two for each, one for hours, one for minutes.

I already have some validation code which works fine, however, I can't seem to be able to use > or < mathematical signs with the times (ie, the start time must be < than the stop time).

Also, I have Code: [Select]
value="<? echo $name; ?>" in each of the fields to re-insert the data as it gets erased if the form isn't correct.  How do I do the same for the drop downs?

I hope this makes sense.

Code: [Select]
<?
 // only validate form when form is submitted
 if(isset($Submit)){
      $error_msg='';
      if(trim($starttime)==(trim($stopttime))) { //drop down
           $error_msg.="starttime cannot equal stop time.<br>";
      }
      if(trim($starttime)>(trim($stopttime))) {  //drop down
           $error_msg.="starttime cannot be greater than stop time.<br>";
      }
      if(trim($startfuel)<(trim($stopfuel))) { //text field
           $error_msg.="Departure fuel cannot be less than arrival fuel<br>";
      }
      if(trim($id)=="sca") { //query powered drop down (this one works, but doesn't re-select the option
           $error_msg.="Please select the id number.<br>";
      }
http://southerncrossairlines.ausvirtual.com/New%20Site/Complete/validation/Untitled-1.php

Hi All,

I'm trying to validate file types and keep seeing an error.  I only allow .gif, .jpg or .png.  However, if I upload any of those file types, I get an error message....  If I echo out $filetypeCheck, I get image/png, which is corrent...

Code: [Select]
$filetypeCheck = $_FILES["file"]["type"];

if( ($filetypeCheck != "image/gif") || ($filetypeCheck != "image/jpeg") || ($filetypeCheck != "image/png") )
{
$val_error[] = 'File Type Error! (.gif, .jpg and .png only)';
}

Whats going on here?