PHP - Like Comparison From Form Difficulty

Hello!  I'm having trouble with a class that extends another, and I don't think I understand the 'extends' concept properly.  I've had my nose in various manuals, but I haven't had any luck figuring it out.  Here's a simplified version of my code:

Code: [Select]
class Position {

private $latitude = 0;
private $longitude = 0;

public function getLatitude(){
return $this->latitude;
}

public function getLongitude(){
return $this->longitude;
}

}

class Coordinates extends Position {

function __construct($nlat, $nlong){
$this->latitude = $nlat;
$this->longitude = $nlong;
}

}

$lat = -123;
$long = 44;

$coordFirst = new Coordinates($lat,$long);

print($coordFirst->getLatitude());

I expect -123 to be printed, but I always get 0 instead.  Could someone let me in on what I'm missing here?

Thanks a bunch!

How hard would it be to build a basic Online Forum using PHP?

(Yes, I know there are open-source versions out there a plenty, but what fun is that?!)

I have a book by Larry Ullman that describes how to do it, but I don't have the book with me and have never programmed such a thing - obviously - so I'm not sure how hard it would be and what you would get for the effort?!   

Thanks,


Debbie

I have a couple of loops that are supposed to 1) list all the values of one table as check boxes then 2)compare them to the values of another table. If they match that checkbox is supposed to be pre-checked. I have some code but it is not working just right yet and I was hoping someone could help me.

Code: [Select]
<?php 
include("../../../cart/includes/openDbConn.php");
$sql = "SELECT Name FROM FabricType";
$dogettype = 'SELECT Type FROM FabricsTypes WHERE SKU = "'.$sku.'";';
$result = mysql_query($sql);
while($results = mysql_fetch_array($result))
{
  if( $i % 3 == 0 )
  {
echo '</tr><tr>';   
  }
  $result2 = mysql_query($dogettype);
  while($results2 = mysql_fetch_array($result2))
  {
    if(trim($results2['Type']) == trim($results['Name']))
    {
  $ischecked = 'checked="checked"';
  $value = 1;
   }
else
{
  $ischecked = '';
  $value = 0;
}
  }
$i++;
$tn = trim(ucfirst($results["Name"]));
    echo '<td>
<label>
<input type="checkbox" name="typeGroup1[]" '.$ischecked.' value="'.$results['Name'].'">
'.$tn.'
</label>
</td>';
  
} 
?>
With this code it echoes the check boxes correctly but only checks it if it is the last value in $results2.

If I move the second while loop like so:
Code: [Select]
                         <?php 
include("../../../cart/includes/openDbConn.php");
$sql = "SELECT Name FROM FabricType";
$dogettype = 'SELECT Type FROM FabricsTypes WHERE SKU = "'.$sku.'";';
$result = mysql_query($sql);
while($results = mysql_fetch_array($result))
{
  if( $i % 3 == 0 )
  {
echo '</tr><tr>';   
  }
  $result2 = mysql_query($dogettype);
  while($results2 = mysql_fetch_array($result2))
  {
    if(trim($results2['Type']) == trim($results['Name']))
    {
  $ischecked = 'checked="checked"';
  $value = 1;
   }
else
{
  $ischecked = '';
  $value = 0;
}
  
$i++;
$tn = trim(ucfirst($results["Name"]));
    echo '<td>
<label>
<input type="checkbox" name="typeGroup1[]" '.$ischecked.' value="'.$results['Name'].'">
'.$tn.'
</label>
</td>';
  }
} 
?>
It only echoes out the first results of $results for however many values there are in $results2.

Thanks for any help.

Hi, its me again!
So i have this function which gets all the events in my db according to its mall_id and a date (year-month).
I merged the $month and $year so i can compare it to the date field in my table.
I used DATE_FORMAT to modify my date field so i can compare them but it doesn't seem to work perfectly,

Code: [Select]
function select_all_events($mall_id, $month, $year, $public)
{
global $connection;
$monthname = $month;
$monthnum = date("n", strtotime("01-".$monthname."-2011 00:00:00"));
if($monthnum < 10)
{
$monthnum = "0" . $monthnum;
}
$selected_date = $year . "-" . $monthnum;
$query = "SELECT *, DATE_FORMAT(date ,'%Y-%m' ) AS date ";
$query .= "FROM table ";
$query .= "WHERE malls_id=" . $mall_id;
$query .=" AND date =" . $selected_date;
if($public == true)
{
$query .= " AND visible = 1";
}
$query .= " ORDER BY date DESC";
$result_set = mysql_query($query, $connection);
confirm_query($result_set);
return $result_set;
}


I tried echoing $selected_date, the format is correct, the problem seems to be the comparison..
Also i tried doing it like this:

Code: [Select]
$query = "SELECT * ";
$query .= "FROM table ";
$query .= "WHERE malls_id=" . $mall_id;
$query .=" AND DATE_FORMAT(date ,'%Y-%m' ) =" . $selected_date;

but the results are mismatched, like when i choose 2012 January it display's 2011 December ...
This dates are making my head dizzy and costing me time..lol 
Any ideas?
Thanks in advance!

Hi! gud pm guys!
I have a simple problem which i can't seem to workout so i kinda need your expert help! 
I'm trying to compare a variable to a string in my db,
the variable and the entry on my db has a format of (car - branch),
I made this simple function to do that but it doesn't seem to compare properly..

Code: [Select]
  function get_car_code($branch)
{
global $connection;
$query = "SELECT code ";
$query .= "FROM car_code ";
$query .= "WHERE branch ="  . '"$branch"';
$query .= " LIMIT 1";
$result_set = mysql_query($query, $connection);
confirm_query($result_set);
return $result_set;

}

when its called back it doesn't return anything.. I'm thinking its the white spaces (or I'm wrong) but i needed them so i cant removed them..
Any suggestions? Thanks in advance!

Hi Everyone. I am new to SQL and trying to write a query against the following results table that would allow me to list the subjects where the student Mary has got a higher score than Tom.   Subject Student Teacher Score Maths Tom Anderson 67 Maths Mary Anderson 68 English Tom Lewis 55 English Mary Lewis 44 French Tom Joubert 87 French Mary Joubert 76 Geography Tom Arnold 76 Geography Mary Arnold 82   I believe I should be using the join clause but am unable to get this to work.   Thanks

Hi guys I am looking for a loop which will run untill there is a difference of 10 minutes. The timestamp I wish to use is "ISO 8601 date (added in PHP 5)" [ date("c")]
If anyone know some code for this it would be much appreicated. I can do the loop its just the comparison between the two timestamps as part of the loop I have no idea where to start on.

Cheers, and thanks in advance.

I need some idea of why my code works on 2 servers except the one that it needs to work on.
Below is the code including the sites where the phpinfo is loaded.

Please help me figure this one out, it's probably simple but I don't see it.

phpinfo of the one not working as expected
phpinfo of the one that works as expected

The problem is here I think?
Quote

$insertGoTo = SITE_URL."?pg=registered&addr=".$myid;
header('Location:'.$insertGoTo);


The code is too long to be posted... in reply...

all my dates I'm reading from a database  are formatted mm/dd/yyyy and I want to find the number of days difference from the duedate and the datepaid (dayslate) . ?

I'm having a problem with (what I'm almost certain is) variable scope, maybe you can help...

So I've got a parent class that, among other things, gets the name of the filepath, explodes this filepath, checks for files with names that mirror that filepath (without the slashes of course), and includes them if they exist:



class ParentClass {

  public $RootFolder;
  public $PageSections;

  function __construct() {
global $root_folder;
$this->RootFolder = $root_folder;
//get all directory names...
$cleanse = $this->RootFolder;
$pagepath = str_replace($cleanse, '', dirname($_SERVER['PHP_SELF']));
$this->PageSections = explode('/', $pagepath);
  }

  function RequireIfExists ($sections, $root_folder, $file_name, $file_type) {
foreach ($sections as $i){
if (isset($o)) {
$i = $o."/".$i;
}
$file = $root_folder.$i."/".$file_name.$file_type;
if (file_exists($_SERVER['DOCUMENT_ROOT'].$file)) {
require ($_SERVER['DOCUMENT_ROOT'].$file);
echo "<!--".$file." included -->"; //temporary measure to ensure that the file is at least being called.
}
$o = $i;
}
  }
// so, excuting the function
// $this->RequireIfExists($this->PageSections, $this->RootFolder, "sectionvars", ".php");
// on some/sub/folder/index.php
// will look for somesectionvars.php, somesubsecitonvars.php & somesubfoldersectionvars.php
// and include whichever ones exist.
}

Then there is a child class that utilizes this function, and successfully requires the file. I know the file is coming through because the echo statement on the page shows up in the code, but I cannot get the variables to pass through?


<?php
class HtmlHead extends PageBlock{
public $PageKeywords;
public $PageDescription;
public $PageStyles;
public $PageScripts;
//------------------------
public $SectionKeywords;
public $SectionDescription;
//------------------------
public $SiteKeywords;
public $SiteDescription;
public $SiteStyles;
public $SiteScripts;
//------------------------
public $CatchAll;

  function __construct() {
parent::__construct();
//$this->RequireIfExists($this->PageSections, $this->RootFolder, "sectionvars", ".php");  //I have tried calling the function here with no luck
global $site_description, $site_keywords, $section_description, $section_keywords, $xyz; //also made sure to global the variables from the required page
$this->SiteDescription = $site_description;
$this->SiteKeywords = $site_keywords;
$this->SectionDescription = $section_description;
$this->SectionKeywords = $section_keywords;
$this->PageDescription = $page_description;
$this->PageKeywords = $page_keywords;
  }

function Constructor() {
$this->RequireIfExists($this->PageSections, $this->RootFolder, "sectionvars", ".php"); //Tried calling the function here as well, no luck
global $xyz; //global'd the var i want
echo "\n<meta http-equiv='Content-Type' content='text/html; charset=UTF-8' />";
echo "\n<!--Sec Keywords are".$xyz."-->"; //Tried to echo the var...
//------------------------Rest of code...
}
}


And here is the page that is being required...


<?php
echo "<!-- 1234 1234 1234 1234 -->"; //test measure to see if/where file is including
$section_keywords = "red, secondary";
$section_description = "this is the red section description";
$xyz = "1234"; //test Var to see if there was a naming conflict with the above two..
?>


What am I overlooking this time?   

I'm compiling and running C++ applications from PHP. I'm using backticks to capture the output of the applications ran. The output is just some simple text. In my case "Miles per gallon = x" where x is just a number. I cannot for the life of me get the comparison to return true. For example

Code: [Select]
$command1="./a.out1 <input1";
$a = `$command1`;

$command2="./a.out2 <input2";
$b = `$command2`;

if(strcmp($a,$b)==0){
...
}
else{
// this is always executing
...
} 
The two strings $a and $b are both "Miles per gallon = 10".

I have checked both variables using var_dump(bin2hex($a)) and get
dump1= string(42) "4d696c6573207065722067616c6c6f6e203d203130"
dump2= string(42) "4d696c6573207065722067616c6c6f6e203d203130"

Any idea on what's happening?

I have this $str variable which say holds "String" and in my comparison I'm checking if it's content is "string" and it is supposed to return true but it isnt because of the case, how do I compare them without the case being an issue ?

Hi i am trying to compare to arrays   $a = Array ( [q1] => no [q3] => yes [q2] => yes ); $b = Array ( [q1] => no [q3] => yes [q2] => yes );   But when i intersect them it results in one element only, dont know why???   $c = array_intersect($a,$b); print_r($c);   output -   Array ( [q1] => no )

Hi guys , Again i facing array comparison problem   i got this after var_dump()  $a and $b array(4) { ["q1"]=> string(3) "yes" ["q4"]=> string(2) "no" ["q3"]=> string(2) "no" ["q2"]=> string(2) "no" }
array(4) { ["q1"]=> string(2) "no" ["q4"]=> string(3) "yes" ["q3"]=> string(3) "yes" ["q2"]=> string(3) "yes" }   But when i use array_intersect($a,$b).. it results this array(4) { ["q1"]=> string(3) "yes" ["q4"]=> string(2) "no" ["q3"]=> string(2) "no" ["q2"]=> string(2) "no" }   Don't know why, but there is no same value in both