assigning variable help

[tommyinnn]

Hi all! I wondered if someone could help me, I'm trying to get a if / else statement to work..

 

this code will produce either nothing or a year (ie. 1986) - it's for a real estate script (Zillow) - It would be the year the home was built

 

$value->return_value("yearBuilt",TRUE)

 

As most of you may know, the below code won't work

 

if ($d==NULL)

  echo "no results";

else

  echo $yearBuilt;

 

I guess what I need to do is assign a variable to the code .. something like

 

$YEAR = $value->return_value("yearBuilt",TRUE)

 

But I can't figure out how to do this.. can anyone point me in the right direction? Thanks!

 

 

[cytech]

Try:

 

if ($yearBuilt==NULL){
  echo "no results";
}else{
  echo $yearBuilt; 
}

 

If that doesn't work try:

 

$yearBuilt =  $value->return_value("yearBuilt",TRUE);

if ($yearBuilt==NULL){
  echo "no results";
}else{
  echo $yearBuilt; 
}

 

[tommyinnn]

Yea, thanks but I already tried that. 

[premiso]

Yea, thanks but I already tried that.  

 

You are using a class, we do not know what class or how your class works to solve this issue for you. Does the class return null? If not that null check will never work.

[tommyinnn]

Here's a demo, http://i-locate.info/zillow.php?address=2710E%20Ridge%20Rd&zip=28144

 

but, in the finished code, it will display 20 results, some will return the real estate data, some will not...

the results that do not have any data, I don't want anything to display.

 

Here's the complete code , it came from the Zillow API Forums.

 

^<?php

^{class get_home_value{}

 

^{private $hostname = 'http://www.zillow.com/webservice/GetDeepSearchResults.htm?';}

^{public $zwsid;}

 

^{public function fetch_info($address,$zip){}

^{$path = "zws-id=".$this->zwsid."&address=".urlencode($address)."&citystatezip=".$zip;}

^{$url = $this->hostname.$path;}

^{$p = xml_parser_create();}

^{xml_parse_into_struct($p,file_get_contents($url),$results,$index);}

^{xml_parser_free($p);}

^{$this->results=$results;}

^{$this->index=$index;}

 

^}

 

 

^{public function return_value($attribute,$return_echo){}

^{$results=$this->results;}

^{$index= $this->index;}

^{$value=$results[$index[strtoupper($attribute)][0]][value];}

 

^{if($return_echo==TRUE){}

^{echo $value;}

^}

^{else return $value;}

 

 

^}

 

 

^}

 

^{$address=$_REQUEST['address'];}

^{$zip=$_REQUEST['zip'];}

^{$form_submitted=$_REQUEST['form_submitted'];}

^{if (!$form_submitted==1){}

 

^}

 

 

 

^{////END OF CLASS}

 

 

 

 

 

 

^{//////Create new instance/////}

^{$value= new get_home_value();}

 

 

 

^{/////Your zwsid here//////}

 

^{$value->zwsid = "<ZILLOW API KEY HERE >";}

 

^{//////Make call and save data to memory////}

 

^{$value->fetch_info($address,$zip);}

 

 

 

^{////Acessing the values is easy. Just call them by tag name. Upper or lowercase is fine////}

 

^{//// TRUE will echo the value and FALSE will return the value.}

 

^{//// This is for demo purposes you can delete it after you get the point////}

 

^?>

 

 

^{<?php echo "Tax Assessor Value: $".number_format($value->return_value("taxassessment",FALSE),2); ?>}

^{<p><BR />}

  ^{<?php echo "Zestimate: $".number_format($value->return_value("amount",FALSE),2); ?><BR />}

  ^{<?php echo "Bedroom(s): ".number_format($value->return_value("bedrooms",FALSE),2); ?><BR />}

  ^{<?php echo "Bathroom(s):".number_format($value->return_value("bathrooms",FALSE),2); ?><BR />}

^{Year Built :}

^{<?php $value->return_value("yearBuilt",TRUE) ?>}

 

 

[premiso]

Most likely it is not returning null instead an empty string. Also to check null you need to use is_null

 

Try this:

$yearBuilt =  $value->return_value("yearBuilt",TRUE);

if (is_null($yearBuilt) || empty($yearBuilt)){
  echo "no results";
}else{
  echo $yearBuilt;
}

 

Should work just fine.

 

FYI for future reference please place code in [.code][./code] tags (no period).

[tommyinnn]

Thanks, but in a way I tried that as well..

 

$yearBuilt =  $value->return_value("yearBuilt",TRUE);

echo $yearBuilt;

 

does not return anything ,

 

 

 

This does...

 

$value->return_value("yearBuilt",TRUE)

 

 

I've even tried using a hidden field

 

 

[premiso]

Can you post what the "return_value" function actually does? It sounds like it echos it. Without knowing exactly what that does we are at a loss for helping you...