Why do i get this error (below) ? Class problem...

[jd2007]

i'm sorry i posted this here, there is no one in oop help forums and i need help urgently...

 

i get this error : Catchable fatal error: Object of class Aeroplane could not be converted to string in C:\AppServ\www\AirFighter.php on line 8

 

this is the php code:

 

<?php

include("aeroplane.php");
$AirFigther=new Aeroplane("2031", "F-16", "US Air Force Fighter");
echo $AirFighter;
echo "<br /><br />";
$UnitedAirlines=new Aeroplane("1220", "Boeing 777", "United Airlines Passenger Aircraft");
echo $UnitedAirlines;
?>

 

the class aeroplane:

 

<?php

class Aeroplane
{
function Aeroplane($no, $type, $usage)
{
     $identity="<b>No:</b> ".$no."<br /><b>Type:</b> ".$type."<br /><b>Usage:</b> ".$usage;
 echo $identity;
}
}

?>

 

 

[ToonMariner]

echo $AirFighter; $AirFighter is an object not a string - you can convert in php5 using the __tostring method http://uk.php.net/manual/en/language.oop5.magic.php

 

otherwise you should be echoing out properties of the object like so...

 

echo $Airfighter->indentity;

 

you will get the same error on line 11 once you have this one sorted....

[pranav_kavi]

hello..

 

i ran ur piece of code...i did get the output as

No: 2031

Type: F-16

Usage: US Air Force Fighter

 

No: 1220

Type: Boeing 777

Usage: United Airlines Passenger Aircraft

Catchable fatal error: Object of class Aeroplane could not be converted to string in C:\xampp\htdocs\xampp\temp.php on line 13

 

The problem was in echoing the objects of class Aeroplane.You dont need to do tat since the values are being echoed in the constructor.

 

[ToonMariner]

I know - I was giving you an example of how to echo out properties of an object...

 

what did you want to echo out?

[jd2007]

thanks..its ok now....how can i ovveride vaiables....

[jd2007]

i wanted to echo the properties which is no., type, usage

[pranav_kavi]

I am not sure whether i have got u right rgarding 'overriding variables'.

s tis wat u want??

 

include("aeroplane.php");
$AirFigther=new Aeroplane("2031", "F-16", "US Air Force Fighter");

echo "<br /><br />";
$UnitedAirlines=new Aeroplane("1220", "Boeing 777", "United Airlines Passenger Aircraft");
echo "<br /><br />";
$aa=new Aeroplane("1221","aa");
echo "<br /><br />";
$bb=new Aeroplane("1221");

aeroplane.php :

class Aeroplane
{
function Aeroplane($no="0", $type="", $usage="")
{
     $identity="<b>No:</b> ".$no."<br /><b>Type:</b> ".$type."<br /><b>Usage:</b> ".$usage;
 echo $identity;
}
}