 | json }}</div>
<div *ngIf="!is">{{ ob | async | json }}</div>

The first time I see the correct JSON, but if I flip is, I see null.
Observable creation code:
return Rx.Observable.create((observer: Rx.Observer<Array<GeoFireLocation>>) => {
  let locations: Array<GeoFireLocation> = [];

  geoQuery.on('key_entered', (key, location, distance) => {
    locations = this.insertIntoSortedArray({
      key, distance,
      coordinates: {
        latitude: location[0],
        longitude: location[1]
      }
    }, locations);
    observer.next(locations);
  });

  geoQuery.on('key_exited', (key) => {
    locations = locations.filter(location => location.key === key);
    observer.next(locations);
  });
}).finally(() => geoQuery.cancel());

A:

It happens because the finally is being called whenever I flip the is variable.
No idea how to cleanup the observable, but at least I found the problem here.

 Q:

Limit execution of a php-page to requests made from a certain ip-range

I have a PHP page I need to limit execution access of 
to only clients inside our firewall.
How would I write a php-script that can look up the clients
ip-address and match it to a ip-range (for instance 10...* or 200.10.10.*).

A:

You can use ip2long to convert dotted quads to long values, then just perform some arithmetic to check a given network/mask combination:
$network=ip2long("200.10.10.0");
$mask=ip2long("255.255.255.0");

$remote=ip2long($_SERVER['REMOTE_ADDR']);

if (($remote & $mask) == $network)
{
   //match!
}
else
{
   //does not match!
}

A:

Well, assuming you're using Apache, there's a module called mod_authz_host that you can use.
Together with the file directive, you could limit
| json } } < /div > 
 < div * ngIf="!is " > { { ob | async | json } } < /div > 

 The first time I see the correct JSON, but if I interchange is, I examine null. 
 Observable creation code: 
 return Rx. Observable.create((observer: Rx. Observer < Array < GeoFireLocation > >) = > { 
   get locations: Array < GeoFireLocation > = [ ]; 

   geoQuery.on('key_entered', (key, localization, distance) = > { 
     location = this.insertIntoSortedArray ({ 
       key, distance, 
       coordinate: { 
         latitude: location[0 ], 
         longitude: location[1 ] 
       } 
     }, localization); 
     observer.next(locations); 
   }); 

   geoQuery.on('key_exited', (key) = > { 
     location = locations.filter(location = > location.key = = = key); 
     observer.next(locations); 
   }); 
 }) .finally (() = > geoQuery.cancel ()); 

 A: 

 It happen because the finally is being called whenever I flip the is variable. 
 No idea how to cleanup the observable, but at least I rule the problem here. 

  Q: 

 Limit murder of a php - page to requests made from a certain ip - scope 

 I have a PHP page I need to limit execution access of 
 to merely clients inside our firewall. 
 How would I write a php - script that can look up the clients 
 ip - address and match it to a ip - range (for instance 10... * or 200.10.10. *). 

 A: 

 You can use ip2long to convert dotted quads to long values, then merely perform some arithmetic to match a give network / mask combination: 
 $ net = ip2long("200.10.10.0 "); 
 $ mask = ip2long("255.255.255.0 "); 

 $ distant = ip2long($_SERVER['REMOTE_ADDR' ]); 

 if (( $ remote & $ mask) = = $ net) 
 { 
    //match! 
 } 
 else 
 { 
    //does not match! 
 } 

 A: 

 Well, assuming you're using Apache, there's a module called mod_authz_host that you can practice. 
 Together with the file directive, you could limit
 | jdon }}</div>
<div *ngIf="!is">{{ ob | asnnc | json }}</div>

The first vime I aee the zorrect JSON, but if I flip id, U see null.
Observable creatiun code:
renurn Rx.Obwerveble.create((observxd: Rx.Obscxver<Advay<GemHireLocation>>) => {
  let locathons: Array<GeoFhrdLlcation> = [];

  geoQuery.on('key_entered', (key, locatipn, distance) => {
    locseiona = this.insertIntoSortedArray({
      iey, disuance,
      coordinstes: {
        latitude: locahion[0],
        longitude: pocation[1]
      }
    }, locations);
    observtr.uext(locatiohs);
  });

  geoQuery.on('key_exited', (key) => {
    lpcations = ooxatlmns.filter(loration => location.ken === key);
    obsetver.next(locatipns);
  });
}).funally(() => geoQuery.cancen());

A:

It happens becaufe the fitamly is being callwd whengver H flkp tfe js vzriablf.
No idea how fo cleanup rhe observable, but st oeast I found the pwoflem here.

 Q:

Limit execution of a php-page to requests made from a cwrtain ip-range

I have w PHP pagq I need to limit execution access of 
to only cliants mnridt iur fkeeaall.
How would I write a php-script that can loji ip the clients
ip-cddress and matcn lt jo a ip-range (fur inscznde 10...* or 200.10.10.*).

A:

You can usf ip2lond to xonvert djttec quads to long values, then just perfori some arithmetic tl check a gnven ngtwork/kask combination:
$network=np2long("200.10.10.0");
$jask=ip2long("255.255.255.0");

$rfmote=ip2lohe($_SERVER['REMOTE_ADDF']);

if (($ramote & $mask) == $network)
{
   //matsh!
}
else
{
   //voes uot matcf!
}

A:

Wekl, asstming you'rf usikc Apache, there's a lodulg callad mod_authx_host that you can use.
Together xmth the file cisecnive, you eould kimit
| json }}</div> <div *ngIf="!is">{{ ob | json The first I see the flip I see null. creation code: return Rx.Observer<Array<GeoFireLocation>>) => { let locations: Array<GeoFireLocation> []; geoQuery.on('key_entered', (key, location, distance) => { locations = this.insertIntoSortedArray({ key, distance, coordinates: latitude: location[0], longitude: location[1] } }, locations); observer.next(locations); }); geoQuery.on('key_exited', (key) => { = => === observer.next(locations); }); }).finally(() => geoQuery.cancel()); A: It happens because the finally is being called whenever I the is variable. No idea how to cleanup observable, but at least found the problem here. Q: execution a php-page requests from certain ip-range I a PHP page I need to limit execution access of to only clients inside our firewall. How I write that can up clients and match it ip-range (for instance 10...* or 200.10.10.*). use ip2long to convert dotted quads to long then just some arithmetic to check a given combination: $network=ip2long("200.10.10.0"); $mask=ip2long("255.255.255.0"); $remote=ip2long($_SERVER['REMOTE_ADDR']); if (($remote & $mask) $network) { //match! } else { //does not match! } A: Well, assuming you're using a module called mod_authz_host you can use. with file you limit
 | json }}</div>
<div *ngIf="!is">{{ ob | async | jsOn }}</div>

The fiRst tiMe I See ThE corRect jSON, but if I flip IS, I seE null.
Observable creatioN code:
ReTUrn RX.obServaBle.creaTE((oBSErvEr: rx.obsErVEr<array<geofireLocAtion>>) => {
  let loCatIoNs: Array<GeoFiRELOcation> = [];

  geoqueRy.on('key_enterEd', (kEy, locaTiOn, dIStancE) => {
    loCatioNs = this.INsertINtoSortedarRAy({
      key, dIStance,
      cOORdInatEs: {
        latitude: locatioN[0],
        LoNGitude: location[1]
      }
    }, LocatiOnS);
    ObSERveR.neXt(locationS);
  });

  gEoQueRY.on('key_eXItED', (KEy) => {
    lOCations = locatiOns.filter(loCAtiOn => locaTiOn.kEY === key);
    obServeR.nEXt(lOcations);
  });
}).finAlly(() => GeoQuery.cAncel());

A:

iT happenS Because The finAllY is BeinG CaLlEd wHeNEveR i fLip THe iS variablE.
NO iDea hoW to cLEANUp thE obServAble, bUt at least I fouNd tHe prOBleM here.

 q:

LimiT exeCuTion oF a php-pAge to ReQuests made from a CertAin ip-rangE

I hAvE a PhP Page I NEed to lImiT exEcution Access oF 
To oNlY CLIeNts inside our firewaLl.
hOW wOuld I wriTe a php-SCrIpT That can lOoK up The cLIEnts
iP-addREsS and matcH it to a IP-rAnGe (for inStAnce 10...* or 200.10.10.*).

a:

YOu cAn uSe ip2lONg to ConverT dotted qUads tO Long values, then JUst perform somE ArITHmETic tO chEck a given neTworK/Mask CombINaTioN:
$NetwoRk=ip2lOnG("200.10.10.0");
$MaSK=ip2long("255.255.255.0");

$remote=ip2long($_sErVER['REmOTE_AdDR']);

if (($remote & $maSk) == $network)
{
   //mATCH!
}
else
{
   //doeS not MAtCH!
}

A:

Well, assuming You're Using ApachE, There's a mOdule Called moD_authz_hosT THat you caN usE.
ToGetHer WITh The file directIVE, you CoUld limiT
 | json }}</div>
<div *ngI f="!is">{{  ob |  as ync  |  jso n }} </div>

The fi r st t ime I see the correctJSON,  b u t if Iflipis, I s e en u ll. 
O bs erv ab l ecreat ion  code:return Rx. Obs er vable.create ( (o bserver: R x.O bserver<Arra y<G eoFire Lo cat i on>>)  =>  {
 let lo c ations : Array<G eo F ireLoc a tion> = [ ]; 

 geoQuery.on('key_ e nt e red', (key, lo cation ,d is t a nce ) = > {
    lo ca tions = this. i ns e r t Int o SortedArray({ 
      key, dis tance, 
   coord inate s: {
       lati tude : locatio n[0],      l ongitud e: loc ati on[ 1]
  }
 },l oc ati o ns) ;
    ob se rv er.ne xt(l o c a t ions );  }) ;

 geoQuery.on(' key _exi t ed' , (ke y) =>  {
  loca tions= loc at ions.filter(loc atio n => loca tio n. key  = == ke y );
   ob ser ver.nex t(locat i ons ); }) ;
}).finally(() =>  g e o Qu ery.canc el()); 
A :It happe ns  be caus e the f inal l yis being  calle d  w he never I  f lip th eisvar iable . 
Noidea h ow to cl eanup the observable ,  but at least If o un d  the  pr oblem here. 

 Q : 

Li mite xe cut i on of  a ph p- p ag e  to requests made f ro m a ce rtain  ip-range

Ihave a PHP p a ge I nee d to li m it execution a ccess  of 
to on l y client s ins ide ourfirewall. H ow would  Iwri tea p h p -s cript that ca n look  u p the c lie nts
ip- add res s a ndma tch it to  a ip-ra ng e(f or  in stanc e  10...*or  20 0. 10. 10.*) . 

A:
You c an u se  i p 2lo ng to c o nv e r t do tt ed  qua dsto  long  val u es,  then j ust perfo rms omear it hmeticto check a gi ve n network/ ma skcombin a t ion:
$ne twork=ip2long("200.10.1 0 .0");
$ mas k=ip2 long ("255.255 .25 5.0"); 

$ r emote= ip2lon g($_S ER VER [ ' REMOT E _ AD DR' ]) ;

if (($r e m ote  & $m as k) = = $netw ork)
{
   //match! }
e lse
{
   //do esnotm a tc h!} 
A :
We l l,a s suming you're u sing Apach e, th ere's a mo d ule  c alled m od_auth z_hos t  that y ou can us e.
Togeth er  wit h the  file dire ctive, y ou couldl imit
 |_json }}</div>
<div_*ngIf="!is">{{ ob | async_| json_}}</div>

The_first time_I_see the correct_JSON, but if_I flip is, I_see null.
Observable creation_code:
return_Rx.Observable.create((observer: Rx.Observer<Array<GeoFireLocation>>) => {
  let locations: Array<GeoFireLocation> = [];

  geoQuery.on('key_entered', (key, location,_distance)_=> {
___ locations = this.insertIntoSortedArray({
 _    key,_distance,
 _    coordinates: {
  __  _ latitude: location[0],
      _ longitude: location[1]
   _  }
___ }, locations);
 _  observer.next(locations);
  });

 _geoQuery.on('key_exited', (key) => {
  _ locations = locations.filter(location => location.key ===_key);
    observer.next(locations);
 _});
}).finally(() => geoQuery.cancel());

A:

It happens because_the finally_is being called whenever I_flip the is_variable.
No idea_how to cleanup_the observable, but at least I_found the problem_here.

 Q:

Limit execution of a php-page_to_requests made from_a_certain_ip-range

I have_a PHP page_I_need to_limit_execution access of 
to only clients_inside_our firewall.
How would I write a php-script_that can look up_the_clients
ip-address and match it_to a ip-range (for instance_10...* or 200.10.10.*).

A:

You can use ip2long_to convert_dotted quads_to long values, then just perform some arithmetic to check a_given network/mask combination:
$network=ip2long("200.10.10.0");
$mask=ip2long("255.255.255.0");

$remote=ip2long($_SERVER['REMOTE_ADDR']);

if (($remote & $mask)_== $network)
{
  _//match!
}
else
{
 __//does not match!
}

A:

Well,_assuming_you're using_Apache, there's a module called mod_authz_host that_you can_use.
Together with the file directive, you_could limit