Question: Creating String array and linking $variable to specific string

ajoros · 06-29-2012, 12:00 AM

Hey guys,

I have a website at http://www.wrcc.dri.edu/monitor/WWDT/index.php and I am trying to associate the $folder PHP variable with a string (text) so that I can display this nicely above and below the image chosen by the user. [right click and view source to see what I am talkin' about]

For example, if users choose SPI 2 Month, $folder=spi2 and I want a string associated with that (lets says $fstring) to be 'SPI 2 Month' ... How do I create an array and link it to the $folder chosen?

Thanks so much,
Hope I asked my question properly and made it easy on you guys to answer.

AJ

firepages · 06-29-2012, 01:33 AM

depending on how you generate your left hand menus there is probably a far more efficient way than this but I guess..

PHP Code:


			
$legends=array(
'spi1'=>'SPI 1 MONTH',
'spi2'=>'SPI 2 MONTH',
//etc etc
);
echo $legends($_GET['folder']);

if the spi$num format is ALWAYS the same you could

PHP Code:


			
$a=str_split($_GET['folder'],3);
$legend = strtoupper($a[0]).' '.$a[1]. ' MONTH';
echo $legend;

and avoid the array

ajoros · 06-30-2012, 11:20 PM

Thanks i'll try the first example as the second wont work since it is not only spi$num variables...

ajoros · 07-02-2012, 08:41 PM

I dont think

Code:

echo $legends($_GET['folder']);

is the proper way to display the current folder/variable. The webpage is blank now. You sure the syntax is correct?

Should I not use print_r???

firepages · 07-03-2012, 12:05 AM

sorry my bad again .. I must be getting old

PHP Code:


			
echo $legends[$_GET['folder']];

ajoros · 07-03-2012, 12:08 AM

Thanks for that!

fire can you link me to somewhere online where I can find literature on this? ive only found stuff on f_print, etc.

firepages · 07-03-2012, 12:14 AM

well here is PHP's array page

its mostly only hard core coders like Fou-Lou who use printf etc since its methodology is common to several languages

print_r() is useful for debugging but rarely used in your actual logic

ajoros · 07-03-2012, 12:27 AM

Ahhh but I mean on that page where do you see an example of the $_GET function that you used. I wouldnt have known to use the $_GET within the $legend var... I am a nub.

ajoros · 07-03-2012, 01:46 AM

Still not working Fire.... code is below for you to check out:

PHP Code:


			

<?php
    $exp=time()+86400;
    $dir='images';
    $img='png';
    $cl='_cl';
    setcookie ("dirC",$dir,$exp);
    setcookie ("clC",$cl,$exp);
    setcookie ("imgC",$img,$exp);
    // Use value from URL and update cookie with new value
    if (isset($_GET['region'])) {
        $region = $_GET['region'];
        setcookie('regionC', $region, $exp);
    // Else, use cookie value if available
    } elseif (isset($_COOKIE['regionC'])) {
            $region = $_COOKIE['regionC'];
    // Finally, no cookie and no URL value so use default
    } else {
            $region = 'ww';
            setcookie('regionC', $region, $exp);
    }
    
    // Use value from URL and update cookie with new value
    if (isset($_GET['ds'])) {
        $ds = $_GET['ds'];
        setcookie('dsC', $ds, $exp);
    } elseif (isset($_COOKIE['dsC'])) {
            $ds = $_COOKIE['dsC'];
    } else {
            $ds = 'PRISM';
            setcookie('dsC', $ds, $exp);
    }
    
    if (isset($_GET['folder'])) {
        $folder = $_GET['folder'];
        setcookie('folderC', $folder, $exp);
    } elseif (isset($_COOKIE['folderC'])) {
            $folder = $_COOKIE['folderC'];
    } else {
            $folder = 'pdsi';
            setcookie('folderC', $folder, $exp);
    }
    
    if (isset($_GET['product'])) {
        $product = $_GET['product'];
        setcookie('productC', $product, $exp);
    } elseif (isset($_COOKIE['productC'])) {
            $product = $_COOKIE['productC'];
    } else {
            $product = 'per';
            setcookie('productC', $product, $exp);
    }
    
    $legends_var = array(
    "pdsi" => "Palmer Drought Severity Index",    
    "pzi" => "Palmer Z-Index",
    "scpdsi" => "Self-Calibrated PDSI",
    "spi1" => "SPI 1 Month",    
    "spi2" => "SPI 2 Month",
    "spi3" => "SPI 3 Month",    
    "spi4" => "SPI 4 Month",
    "spi5" => "SPI 5 Month",    
    "spi6" => "SPI 6 Month",
    "spi7" => "SPI 7 Month",    
    "spi8" => "SPI 8 Month",
    "spi9" => "SPI 9 Month",    
    "spi10" => "SPI 10 Month",
    "spi11" => "SPI 11 Month",    
    "spi12" => "SPI 12 Month",
    "spi15" => "SPI 15 Month",    
    "spi18" => "SPI 18 Month",    
    "spi24" => "SPI 24 Month",    
    "spi30" => "SPI 30 Month",
    "spi36" => "SPI 36 Month",    
    "spi48" => "SPI 48 Month",
    "spi60" => "SPI 60 Month",    
    "spi72" => "SPI 72 Month",
    "mdn1" => "Temperature Anomaly 1 Month",    
    "mdn2" => "Temperature Anomaly 2 Month",
    "mdn3" => "Temperature Anomaly 3 Month",    
    "mdn4" => "Temperature Anomaly 4 Month",
    "mdn5" => "Temperature Anomaly 5 Month",    
    "mdn6" => "Temperature Anomaly 6 Month",
    "mdn7" => "Temperature Anomaly 7 Month",    
    "mdn8" => "Temperature Anomaly 8 Month",
    "mdn9" => "Temperature Anomaly 9 Month",    
    "mdn10" => "Temperature Anomaly 10 Month",
    "mdn11" => "Temperature Anomaly 11 Month",    
    "mdn12" => "Temperature Anomaly 12 Month",
    "mdn1per" => "Temperature Percentile 1 Month",    
    "mdn2per" => "Temperature Percentile 2 Month",
    "mdn3per" => "Temperature Percentile 3 Month",    
    "mdn4per" => "Temperature Percentile 4 Month",
    "mdn5per" => "Temperature Percentile 5 Month",    
    "mdn6per" => "Temperature Percentile 6 Month",
    "mdn7per" => "Temperature Percentile 7 Month",    
    "mdn8per" => "Temperature Percentile 8 Month",
    "mdn9per" => "Temperature Percentile 9 Month",    
    "mdn10per" => "Temperature Percentile 10 Month",
    "mdn11per" => "Temperature Percentile 11 Month",    
    "mdn12per" => "Temperature Percentile 12 Month",    
    "pon1" => "Precipitation Anomaly 1 Month",    
    "pon2" => "Precipitation Anomaly 2 Month",
    "pon3" => "Precipitation Anomaly 3 Month",    
    "pon4" => "Precipitation Anomaly 4 Month",
    "pon5" => "Precipitation Anomaly 5 Month",    
    "pon6" => "Precipitation Anomaly 6 Month",
    "pon7" => "Precipitation Anomaly 7 Month",    
    "pon8" => "Precipitation Anomaly 8 Month",
    "pon9" => "Precipitation Anomaly 9 Month",    
    "pon10" => "Precipitation Anomaly 10 Month",
    "pon11" => "Precipitation Anomaly 11 Month",    
    "pon12" => "Precipitation Anomaly 12 Month",
    "pon1per" => "Precipitation Percentile 1 Month",    
    "pon2per" => "Precipitation Percentile 2 Month",
    "pon3per" => "Precipitation Percentile 3 Month",    
    "pon4per" => "Precipitation Percentile 4 Month",
    "pon5per" => "Precipitation Percentile 5 Month",    
    "pon6per" => "Precipitation Percentile 6 Month",
    "pon7per" => "Precipitation Percentile 7 Month",    
    "pon8per" => "Precipitation Percentile 8 Month",
    "pon9per" => "Precipitation Percentile 9 Month",    
    "pon10per" => "Precipitation Percentile 10 Month",
    "pon11per" => "Precipitation Percentile 11 Month",    
    "pon12per" => "Precipitation Percentile 12 Month",
    );

    $legends_region = array(
    "ww" => "Western US", 
    "az" => "Arizona",
    "ca" => "California", 
    "co" => "Colorado",
    "id" => "Idaho", 
    "mo" => "Montana",
    "nv" => "Nevada", 
    "nm" => "New Mexico",
    "or" => "Oregon", 
    "ut" => "Utah",
    "wa" => "Washington", 
    "wy" => "Wyoming",    
    "us" => "United States",
    );
?>


 <?php
            $dir='images';
            echo "<h3> Path: $ds  >  $legends_var[$_GET['folder']]  >  $legends_region[$_GET['region']]</h3>";
            //echo "<h3>Currently viewing images using the <u>$ds</u> dataset.</h3>";             
            //sets the folder string name if it was set previously
            if(isset($_GET['folder'])) $folder = $_GET['folder'];
            //sets the product string name if it was set previously
            //if(isset($_GET['product'])) $product = $_GET['product'];
            //if(isset($_GET['region'])) $region=$_GET['region']; 
            //sets the region string name if it was set previously, if not then 'us' is used by default
            $img='png';$cl='_cl';$current='_current';$underscore='_';
              if (file_exists("$dir/$folder/$region$cl.$img"))
              {
                if ($region=='us')
                { 
                    echo "<!--Displaying image from /$dir/$folder/$region.$img<br>-->
                    <br><img src='$dir/$folder/$region.$img'>
                    <br><br>
                    <a class=\"hvr\" href=\"/monitor/WWDT/data/PRISM/$folder/$folder$current$underscore$ds.nc\"><u>Download $ds $legends_var[$_GET['folder']] NETCDF Data for United States</u></a>
                    <br> <br>
                    <a class=\"hvr\" href=\"/monitor/WWDT/data/PRISM/$folder/$folder$current$underscore$ds.tif\"><u>Download $ds $legends_var[$_GET['folder']] NETCDF Data for United States</u></a>";
                }
                else
                { 
                    echo "<!--Displaying image from /$dir/$folder/$region$cl.$img<br>-->
                    <br><img src='$dir/$folder/$region$cl.$img'>
                    <br><br>
                    <a class=\"hvr\" href=\"/monitor/WWDT/data/PRISM/$folder/$folder$current$underscore$ds.nc\"><u>Download $ds $legends_var[$_GET['folder']] NETCDF Data for United States</u></a>
                    <br> <br>
                    <a class=\"hvr\" href=\"/monitor/WWDT/data/PRISM/$folder/$folder$current$underscore$ds.tif\"><u>Download $ds $legends_var[$_GET['folder']] GeoTIFF Data for United States</u></a>";
                }
              }
              else
                { 
                    echo "<h4>File image requested within the $ds dataset is not available</h4><br>"; 
                }
            ?>

What is wrong here???

firepages · 07-03-2012, 03:53 AM

your url has ?folder=whatever , that should therefore be present in $_GET['folder'] automagically.
I think its just the way you are echoing out ...
try replacing

PHP Code:


			
echo "<h3> Path: $ds  >  $legends_var[$_GET['folder']]  >  $legends_region[$_GET['region']]</h3>";

with

PHP Code:


			
echo "<h3> Path: $ds  >  {$legends_var[$_GET['folder']]}  >  {$legends_region[$_GET['region']]}</h3>";

the {braces} tell PHP (in this case) to treat the contents as an array variable

ajoros · 07-03-2012, 04:21 AM

I am trying to save it into memory (cookies now) but no luck... Its not saving legreg and legvar the way I want it to... upon cookies cleared it should by default have $legreg="Western US" and $legvar="Palmer Drought Severity Index"

Check out the code :

PHP Code:


			
<?php
        $exp=time()+86400;
        $dir='images';
        $img='png';
        $cl='_cl';
        setcookie ("dirC",$dir,$exp);
        setcookie ("clC",$cl,$exp);
        setcookie ("imgC",$img,$exp);
        // Use value from URL and update cookie with new value
        if (isset($_GET['region'])) {
                $region = $_GET['region'];
                setcookie('regionC', $region, $exp);
        // Else, use cookie value if available
        } elseif (isset($_COOKIE['regionC'])) {
                        $region = $_COOKIE['regionC'];
        // Finally, no cookie and no URL value so use default
        } else {
                        $region = 'ww';
                        setcookie('regionC', $region, $exp);
        }
       
        // Use value from URL and update cookie with new value
        if (isset($_GET['ds'])) {
                $ds = $_GET['ds'];
                setcookie('dsC', $ds, $exp);
        } elseif (isset($_COOKIE['dsC'])) {
                        $ds = $_COOKIE['dsC'];
        } else {
                        $ds = 'PRISM';
                        setcookie('dsC', $ds, $exp);
        }
       
        if (isset($_GET['folder'])) {
                $folder = $_GET['folder'];
                setcookie('folderC', $folder, $exp);
        } elseif (isset($_COOKIE['folderC'])) {
                        $folder = $_COOKIE['folderC'];
        } else {
                        $folder = 'pdsi';
                        setcookie('folderC', $folder, $exp);
        }
       
        if (isset($_GET['product'])) {
                $product = $_GET['product'];
                setcookie('productC', $product, $exp);
        } elseif (isset($_COOKIE['productC'])) {
                        $product = $_COOKIE['productC'];
        } else {
                        $product = 'per';
                        setcookie('productC', $product, $exp);
        }
       
        if (isset($_COOKIE['legvarC'])) {
                        $legvar = $_COOKIE['legvarC'];
        } else {
                        $legvar = "Palmer Drought Severity Index";
                        setcookie('legvarC', $legvar, $exp);
        }
       
        if (isset($_COOKIE['legregC'])) {
                        $legreg = $_COOKIE['legregC'];
        } else {
                        $legreg = "Western US";
                        setcookie('legregC', $legreg, $exp);
        }
       
        $legends_var = array(
        "pdsi" => "Palmer Drought Severity Index",     
        "pzi" => "Palmer Z-Index",
        "scpdsi" => "Self-Calibrated PDSI",
        "spi1" => "SPI 1 Month",       
        "spi2" => "SPI 2 Month",
        "spi3" => "SPI 3 Month",       
        "spi4" => "SPI 4 Month",
        "spi5" => "SPI 5 Month",       
        "spi6" => "SPI 6 Month",
        "spi7" => "SPI 7 Month",       
        "spi8" => "SPI 8 Month",
        "spi9" => "SPI 9 Month",       
        "spi10" => "SPI 10 Month",
        "spi11" => "SPI 11 Month",     
        "spi12" => "SPI 12 Month",
        "spi15" => "SPI 15 Month",     
        "spi18" => "SPI 18 Month",     
        "spi24" => "SPI 24 Month",     
        "spi30" => "SPI 30 Month",
        "spi36" => "SPI 36 Month",     
        "spi48" => "SPI 48 Month",
        "spi60" => "SPI 60 Month",     
        "spi72" => "SPI 72 Month",
        "mdn1" => "Temperature Anomaly 1 Month",       
        "mdn2" => "Temperature Anomaly 2 Month",
        "mdn3" => "Temperature Anomaly 3 Month",       
        "mdn4" => "Temperature Anomaly 4 Month",
        "mdn5" => "Temperature Anomaly 5 Month",       
        "mdn6" => "Temperature Anomaly 6 Month",
        "mdn7" => "Temperature Anomaly 7 Month",       
        "mdn8" => "Temperature Anomaly 8 Month",
        "mdn9" => "Temperature Anomaly 9 Month",       
        "mdn10" => "Temperature Anomaly 10 Month",
        "mdn11" => "Temperature Anomaly 11 Month",     
        "mdn12" => "Temperature Anomaly 12 Month",
        "mdn1per" => "Temperature Percentile 1 Month", 
        "mdn2per" => "Temperature Percentile 2 Month",
        "mdn3per" => "Temperature Percentile 3 Month", 
        "mdn4per" => "Temperature Percentile 4 Month",
        "mdn5per" => "Temperature Percentile 5 Month", 
        "mdn6per" => "Temperature Percentile 6 Month",
        "mdn7per" => "Temperature Percentile 7 Month", 
        "mdn8per" => "Temperature Percentile 8 Month",
        "mdn9per" => "Temperature Percentile 9 Month", 
        "mdn10per" => "Temperature Percentile 10 Month",
        "mdn11per" => "Temperature Percentile 11 Month",       
        "mdn12per" => "Temperature Percentile 12 Month",       
        "pon1" => "Precipitation Anomaly 1 Month",     
        "pon2" => "Precipitation Anomaly 2 Month",
        "pon3" => "Precipitation Anomaly 3 Month",     
        "pon4" => "Precipitation Anomaly 4 Month",
        "pon5" => "Precipitation Anomaly 5 Month",     
        "pon6" => "Precipitation Anomaly 6 Month",
        "pon7" => "Precipitation Anomaly 7 Month",     
        "pon8" => "Precipitation Anomaly 8 Month",
        "pon9" => "Precipitation Anomaly 9 Month",     
        "pon10" => "Precipitation Anomaly 10 Month",
        "pon11" => "Precipitation Anomaly 11 Month",   
        "pon12" => "Precipitation Anomaly 12 Month",
        "pon1per" => "Precipitation Percentile 1 Month",       
        "pon2per" => "Precipitation Percentile 2 Month",
        "pon3per" => "Precipitation Percentile 3 Month",       
        "pon4per" => "Precipitation Percentile 4 Month",
        "pon5per" => "Precipitation Percentile 5 Month",       
        "pon6per" => "Precipitation Percentile 6 Month",
        "pon7per" => "Precipitation Percentile 7 Month",       
        "pon8per" => "Precipitation Percentile 8 Month",
        "pon9per" => "Precipitation Percentile 9 Month",       
        "pon10per" => "Precipitation Percentile 10 Month",
        "pon11per" => "Precipitation Percentile 11 Month",     
        "pon12per" => "Precipitation Percentile 12 Month",
        );
 
        $legends_region = array(
        "ww" => "Western US",
        "az" => "Arizona",
        "ca" => "California",
        "co" => "Colorado",
        "id" => "Idaho",
        "mo" => "Montana",
        "nv" => "Nevada",
        "nm" => "New Mexico",
        "or" => "Oregon",
        "ut" => "Utah",
        "wa" => "Washington",
        "wy" => "Wyoming",     
        "us" => "United States",
        );
?>
 
      <?php
                        $dir='images';
                        $legvar=$legends_var[$_GET['folder']]; $legreg=$legends_region[$_GET['region']];
                        echo "<h3> Current Product: $ds  >  " . $legvar . "  >  " . $legreg . "</h3>";
                        //echo "<h3>Currently viewing images using the <u>$ds</u> dataset.</h3>";                      
                        //sets the folder string name if it was set previously
                        if(isset($_GET['folder'])) $folder = $_GET['folder'];
                        //sets the product string name if it was set previously
                        //if(isset($_GET['product'])) $product = $_GET['product'];
                        //if(isset($_GET['region'])) $region=$_GET['region'];
                        //sets the region string name if it was set previously, if not then 'us' is used by default
                        $img='png';$cl='_cl';$current='_current';$underscore='_';
                          if (file_exists("$dir/$folder/$region$cl.$img"))
                          {
                                if ($region=='us')
                                {
                                        echo "<!--Displaying image from /$dir/$folder/$region.$img<br>-->
                                        <br><img src='$dir/$folder/$region.$img'>
                                        <br><br>
                                        <a class=\"hvr\" href=\"/monitor/WWDT/data/PRISM/$folder/$folder$current$underscore$ds.nc\"><u>Download $ds " . $legvar . " NETCDF Data for United States</u></a>
                                        <br> <br>
                                        <a class=\"hvr\" href=\"/monitor/WWDT/data/PRISM/$folder/$folder$current$underscore$ds.tif\"><u>Download $ds " . $legvar . " NETCDF Data for United States</u></a>";
                                }
                                else
                                {
                                        echo "<!--Displaying image from /$dir/$folder/$region$cl.$img<br>-->
                                        <br><img src='$dir/$folder/$region$cl.$img'>
                                        <br><br>
                                        <a class=\"hvr\" href=\"/monitor/WWDT/data/PRISM/$folder/$folder$current$underscore$ds.nc\"><u>Download $ds " . $legvar . " NETCDF Data for United States</u></a>
                                        <br> <br>
                                        <a class=\"hvr\" href=\"/monitor/WWDT/data/PRISM/$folder/$folder$current$underscore$ds.tif\"><u>Download $ds " . $legvar . " GeoTIFF Data for United States</u></a>";
                                }
                          }
                          else
                                {
                                        echo "<h4>File image requested within the $ds dataset is not available</h4><br>";
                                }
                        ?>