[SOLVED] php randomly changing variable values.... any idea why?

[Cabal]

Any idea whats going on here?

 

I have a function which outputs an image to a filename which is specified by a combination of a variable inputted into the function, and a hard-coded location. The variable is being inputted to the function correctly - i placed an echo command the line before the function is called and that value is correct..... however an echo command within the function seems to show a different value. It is this changed value which is being used as the location, not the correct one which is being sent to the function

 

8081_B12345_53444900_10 becomes 8081_B12345_53444900_14

8081_B12345_53444900_U99 becomes 8081_B12345_53444900_V03

8081_B12345_53444900_aa becomes 8081_B12345_53444900_ae

 

Any idea what is causing this? It shouldn't be my coding as between the two echo commands all that happens is the value is passed to the function.

[d22552000]

in the funciton, the value is reinterpreted, transfered.

 

think about it:

 

$d = 1;
function  der($e);
{
}
der($d);

it transfers the data, and can easily change. and if you use DATE in that function anywhere to predict it... it will get the date AGAIN at the function start.

 

the important question is... what do you ahve to choose your last value?  ??_??_??_xx

what do you ahve determining that last section after the underscore?

[PhaZZed]

Grab a pastebin, and let's take a look at the code..

[Cabal]

The value passed to the function is taken from an array value. The last bit of the file name corresponds to the file name without extension of a text file that was uploaded... this function translates the data within that file into an image. The whole of that value (the other bits... plus the file name without extension) are all put into an array. This is then looped and passed to the function.

 

The values have different names and dont reference each other except being passed into a function.

 

The start of the function is as follows

 

function biodraw($values, $maxx, $maxy, $points, $bimt)

{

//this echo doesn't show the correct value - shows the incorrect value

 

echo "$bimt<br>";

 

<SNIPPED.... AS IRRELEVANT UNDER HERE>

 

 

 

The section of code that passes the value to the function is as follows

 

//get the original file name from the array of file name

$thisfilename = substr(strrchr($okfilearray[$oki], '/'), 1);

$thisfilename = substr($thisfilename, 0, strrpos($thisfilename, 46));

 

//take the values from the output of a function (this part doesnt reference the file name at all)

//this is simply the output from the function which reads the relevant data from the file

$valdrawarray = $thisresult[4];

 

//declare variables

$maxx = "1";

$maxy = "1";

$points = "0";

$imt = $thisfilename;

 

//this bit shows the correct value

echo "$imt<br>";

 

if(is_array($valdrawarray))

{

foreach($valdrawarray as $thisvaldraw)

{

if($thisvaldraw[0] > $maxx)

{

$maxx = $thisvaldraw[0];

}

 

if($thisvaldraw[1] > $maxy)

{

$maxy = $thisvaldraw[1];

}

 

$points++;

$imt++;

}

 

biodraw($valdrawarray, $maxx, $maxy, $points, $imt);

}

[sasa]

in line $imt++; the value is chenged

try to insert line echo 'biodraw(',"$valdrawarray, $maxx, $maxy, $points, $imt",')'; and see

[Cabal]

Ah.... that should be $imtcount++.... which is why I didn't check that line. Thanks for that.