[PHP] Class question
I have 3 classes, CLASS A,B and C
class A {
var $some_var;
var $class_B;
function A(){
$this-class_B = new B();
$this-some_var=2;
}
}
class B {
var $some_var;
var $class_C;
function B(){
$this-class_C = new C();
$this-some_var= some_var_from_class_A;
}
}
class C {
var $some_var;
function C(){
$this-some_var= some_var_from_class_A;
}
}
How can class B and C get the value of $some_var_class_A without using
$this-class_B = new B($some_var);
roger helgesen
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Re: [PHP] Class question
What does $this-A(); do ?(in constructor of class B)
does it make another instance of class A, and if not why do I have to
parse vars to the A constructor ($this-A($var1,$var2))?.
I dont think that is what I want.
A can have many instances of B. B can have many instances of C.
A
B B B
B
Should not a instanse(object) of class B bee able to request av var of
the calling object (class A)?
Sorry about this stupid questions, I'm not a coder.
Thomas Munz wrote:
Use 'extends' syntax for sub classes
class A {
var $some_var;
var $class_B;
function A(){
$this-class_B = new B();
$this-some_var=2;
}
}
class B extends A {
var $class_C;
function B(){
$this-A();
$this-class_C = new C();
// $this-some_var= some_var_from_class_A; -- $this-some_var
contains the value allready
}
}
class C extends A {
function C(){
$this-A();
// $this-some_var= some_var_from_class_A; -- $this-some_var
contains the value allready
}
}
on Friday 15 September 2006 11:01, Roger Helgesen wrote:
I have 3 classes, CLASS A,B and C
class A {
var $some_var;
var $class_B;
function A(){
$this-class_B = new B();
$this-some_var=2;
}
}
class B {
var $some_var;
var $class_C;
function B(){
$this-class_C = new C();
$this-some_var= some_var_from_class_A;
}
}
class C {
var $some_var;
function C(){
$this-some_var= some_var_from_class_A;
}
}
How can class B and C get the value of $some_var_class_A without using
$this-class_B = new B($some_var);
roger helgesen
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[PHP] Re: CLASS/Object lifetime - Solution
function fyll_sub_konto($pv){
foreach($this-subposter AS $konto=$kt){
$kontoen= $this-subposter[$konto];
$kontoen-fyll_fra_post($pv);
$kontoen-endre();
}
}
the line
$kontoen= $this-subposter[$konto];
solved all
roger
roger helgesen wrote:
The function that gives me trouble
-
function fyll_sub_konto($pv){
foreach($this-subposter AS $konto){
$konto-fyll_fra_post($pv);
}
}
-
$this-subposter is the array of CLASS2
function fyll_fra_post($post_vars){
echo (gruppe)class = .get_class($this) .br\n;
$teller=0;
foreach($this-poster AS $post=$verd){
$best=bestilt_.$post;
$avik=avvik_.$post;
$fakt=faktura_.$post;
$this-poster[$post][bestilt]=$post_vars[$best];
$this-poster[$post][avvik]=$post_vars[$avik];
$this-poster[$post][faktura]=$post_vars[$fakt];
}
$this-endret='ja';
$this-sett_sum();
}
If I print the data (after setting the new data) inside 'fyll_fra_post'
it puts out the new data.
If I do the same from 'fyll_sub_konto' (after foreach) it gives me the
old data.
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[PHP] Object lifetime
I'v got CLASS 1 and CLASS2. CLASS1 makes many instanses of CLASS2 and stores them in an array. Ex. -- load class definition... start_session(); html form typ.. ?PHP $cl1=new CLASS1; I serialize CLASS1 into a $_SESSION['cla1'] -submit form - and unsreialize it to same var $cl1=unserialize($_SESSION['cla1']); $cl1 is operational with same data as before 'submit form'. I can change values of data in $cl1. I CAN read/print data in the instanses of CLASS2 that $cl1 created before 'submit form'. I CAN NOT change the data in the instanses of CLASS2 that $cl1 created before 'submit form'. mark I'v only serialized CLASS1. Is this at all possible ?? I'v find it strange since I can use/print the data that is stored in CLASS2 before 'submit form'. regards Roger Helgesen -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] CLASS/Object lifetime
Hi! I'v got 2 classes. CLASS1 makes a array of instanses of class2. I need thees classes 2 live for the duration of the session so I serialize class1 to a _session var. I submit the form and the page is reloaded. I unserialize class1 back 2 same instanse var. class1 I works. The instanses of class2 almost work. I can read all data from the class/object, I can run functions off class2 BUT I can't change the data in objects og class2. Is this at all possible. ps.I do not serialize/unserialize object of CLASS2, these are instanses of CLASS1. regard Roger Helgesen -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] CLASS/Object lifetime
Jochem Maas wrote: roger helgesen wrote: Hi! I'v got 2 classes. CLASS1 makes a array of instanses of class2. I need thees classes 2 live for the duration of the session so I serialize class1 to a _session var. I submit the form and the page is reloaded. I unserialize class1 back 2 same instanse var. class1 I works. The instanses of class2 almost work. I can read all data from the class/object, I can run functions off class2 BUT I can't change the data in objects og class2. Is this at all possible. ps.I do not serialize/unserialize object of CLASS2, these are instanses of CLASS1. know this: you must define the class of any object you serialize in the session array BEFORE you start the session. (unless you want lots of problems) == now if you could post some code then we can figure out why your array of CLASS2 objects (inside your unserialized CLASS1 object) do not contain the data they should (namely the data you stuffed in them before serializing the CLASS1 ['parent'] object) deal? regard Roger Helgesen The thing is that the array of CLASS2 do contain the data, but I can't change them. I attach the code. CLASS1 = sammendragHTML (child of sammendrag) CLASS2 = gruppe There is quite a lot of rubbish in the code ! tnx! -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: CLASS/Object lifetime - Here is the code
roger helgesen wrote:
Hi!
I'v got 2 classes. CLASS1 makes a array of instanses of class2.
I need thees classes 2 live for the duration of the session so I
serialize class1 to a _session var.
I submit the form and the page is reloaded. I unserialize class1 back 2
same instanse var.
class1 I works. The instanses of class2 almost work.
I can read all data from the class/object, I can run functions off
class2 BUT I can't change the data in objects og class2.
Is this at all possible.
ps.I do not serialize/unserialize object of CLASS2, these are instanses
of CLASS1.
regard
Roger Helgesen
?PHP
CLASS kontoplan{
var $kontoer=array();
function kontoplan(){
$SQL=SELECT kontonummer,navn,paslag FROM kontoer ORDER BY
kontonummer;
$SQL=mysql_query($SQL);
$teller=1;
while($konto=mysql_fetch_array($SQL)){
// echo bvi er naring; $teller gangbr\n;
// echo
array(\kontonummer\=$konto[0],\navn\=$konto[1],\paslag\=$konto[2])br\n;
$this-kontoer[$konto[0]]=array(kontonummer=$konto[0],navn=$konto[1],paslag=$konto[2]);
// $teller++;
}
// echo Kontoplan(.count($this-kontoer).)
-\n;
// print_r($this-kontoer);
// foreach($this-kontoer as $konto=$rekke){
// echo $konto(.count($this-kontoer).)br\n;
// echo 0=.$rekke['kontonummer']. 1=.$rekke['navn'].
2=.$rekke['paslag'].br\n;
// }
}
}
CLASS sammendrag{
var $prosjektnummer;
var $prosjektnavn;
var $kalk_id;
var $hovedposter=array();
var $subposter=array();
var $vinduer=array();
var $dorer=array();
var $porter=array();
var $antall=0;
var $a=0;
var $kplan;
function sammendrag($nummer,$navn){
// echo h2I sammandrag/h2\n;
$this-prosjektnummer=$nummer;
$this-prosjektnavn=sql_return(SELECT ProsjektNavn
FROM prosjektnr where ProsjektNummer=$nummer);
$this-kplan=new kontoplan();
$this-kalk_id=sql_return(SELECT id FROM kalk_opl WHERE
prosjekt='$this-prosjektnummer');
$SQL=SELECT left(konto,4) AS hkonto,ROUND(SUM(s4))
FROM kalkyler WHERE id_kalk='$this-kalk_id' GROUP BY hkonto;
//echo sql=$SQLbr\n;
$knavn=SELECT kontonummer,navn FROM kontoer WHERE
right(kontonummer,2)=00;
$knavn=mysql_query($knavn);
$kn=array();
while($k=mysql_fetch_array($knavn)){
// $k[0]=$k[0].'00';
$kn[$k[0]]=$k[1];
}
mysql_free_result($knavn);
$SQL=mysql_query($SQL);
$tpost=array();
$npost=array();
while($hkonto=mysql_fetch_array($SQL)){
$hkonto[0]=$hkonto[0].'00';
// echo hkonto0[$hkonto[0]], knr=$knrbr\n;
// array_unshift($hkonto,$kn[$hkonto[0]]);
$tpost[]=array($hkonto[0],$kn[$hkonto[0]],$hkonto[1]);
}
// Fyller pa med underentrepenorer
$SQL=SELECT kontonummer,navn FROM kontoer WHERE (kontonummer =45
AND kontonummer 451000) AND right(kontonummer,2)='00';
$SQL=mysql_query($SQL);
while($hkonto=mysql_fetch_array($SQL)){
$hkonto[2]=0;
array_push($tpost,$hkonto);
}
$this-fyll_poster($tpost);
$this-fyll_vinduer();
$this-lag_hkontoer();
}
function fyll_poster($rekke){
while($post=current($rekke)){
$this-ny_hovedpost($post);
next($rekke);
}
}
function ny_hovedpost($hovedpost){
// echo Sette
hovedposter[.$hovedpost[0].]=$hovedpostbr\n;
$this-hovedposter[$hovedpost[0]]=$hovedpost;
$this-antall++;
}
function hpostnavn($post){
//echo hpostnavn=.$this-hovedposter[$post][1].\n;
return $this-hovedposter[$post][1];
}
function lag_hkontoer(){
foreach($this-hovedposter AS $hkonto=$verd){
$hn='t'.$hkonto;
$hnnavn=$hn;
$hn=new gruppe($hkonto,$this,$this-kplan);
$this-subposter[$hnnavn]=$hn;
// $hn-skriv($this,$hkonto);
}
}
function skriv_kontoer(){
// Skrive ut alle konto sider
foreach($this-subposter AS $konto){
$konto-skriv($this);
}
}
function fyll_sub_konto($pv){
foreach($this-subposter AS $konto=$kontoen){
//echo $konto($kontoen
[PHP] Re: CLASS/Object lifetime - more info
The function that gives me trouble
-
function fyll_sub_konto($pv){
foreach($this-subposter AS $konto){
$konto-fyll_fra_post($pv);
}
}
-
$this-subposter is the array of CLASS2
function fyll_fra_post($post_vars){
echo (gruppe)class = .get_class($this) .br\n;
$teller=0;
foreach($this-poster AS $post=$verd){
$best=bestilt_.$post;
$avik=avvik_.$post;
$fakt=faktura_.$post;
$this-poster[$post][bestilt]=$post_vars[$best];
$this-poster[$post][avvik]=$post_vars[$avik];
$this-poster[$post][faktura]=$post_vars[$fakt];
}
$this-endret='ja';
$this-sett_sum();
}
If I print the data (after setting the new data) inside 'fyll_fra_post'
it puts out the new data.
If I do the same from 'fyll_sub_konto' (after foreach) it gives me the
old data.
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Re: [PHP] Re: CLASS/Object lifetime - more info
ain't that the other way around ?
$var1=$var2 ($var1 is a copy of $var2)
$var1= $var2 ($var1 is a reference to $var2)
$var1='Test'
echo $var2 (outputs Test)
roger
Jochem Maas wrote:
REFERENCES.
the object you get back is a copy (foreach has the same
effect as creating a new variable as in the example below).
... see below ...
notice the use of the symbol (and the 'refcount' values).
(there is loads of info out there on references/php4/objects
out there that explain it better than me.) - see what happens
when you start removing ''s.
or you could try php5 and forget about 'object hell'. :-)
roger helgesen wrote:
The function that gives me trouble
-
function fyll_sub_konto($pv){
foreach($this-subposter AS $konto){
$konto-fyll_fra_post($pv);
}
class Test
{
var $number;
var $subposter;
function Test($n = 0) { $this-number = $n; }
function sqar() { if (is_numeric($this-number)) { $this-number *=
$this-number; } return $this; }
function doit() { echo strval($this-number),\n; }
function make() {
static $c = 1;
$t = new Test($c++);
$s = $t; // watch what happens when you remove the '' (php4 only)
$s-sqar();
$this-subposter[] = $t-sqar();
}
function goan() {
$cnt = count($this-subposter);
$this-doit();
for($i=0;$i$cnt;$i++) {
// watch what happens when you remove the '' (php4 only)
$tmp = $this-subposter[$i];
$tmp-sqar();
$this-subposter[$i]-doit();
}
}
}
$t = new Test(infinity); $i = 0;
while($i++ 5) $t-make();
$t-goan();
}
-
$this-subposter is the array of CLASS2
function fyll_fra_post($post_vars){
echo (gruppe)class = .get_class($this) .br\n;
$teller=0;
foreach($this-poster AS $post=$verd){
$best=bestilt_.$post;
$avik=avvik_.$post;
$fakt=faktura_.$post;
$this-poster[$post][bestilt]=$post_vars[$best];
$this-poster[$post][avvik]=$post_vars[$avik];
$this-poster[$post][faktura]=$post_vars[$fakt];
}
$this-endret='ja';
$this-sett_sum();
}
If I print the data (after setting the new data) inside
'fyll_fra_post' it puts out the new data.
If I do the same from 'fyll_sub_konto' (after foreach) it gives me
the old data.
--
mvh
Roger Helgesen
Helgesen Tekniske-bygg AS
56193410
[EMAIL PROTECTED]
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