[Resolved] Array help

gvanaco

<?
$immax_x = 200;
$immax_y = 50;
$logim        = imagecreate($immax_x,$immax_y);
$lognummer = rand (10,99) .rand (10,99) . rand (10,99); //nummer maken

$background1	= imagecolorallocate($logim, 255, 255, 10);	//wit
$background2    = imagecolorallocate ($logim, 255,247,128);		//geel
$background3    = imagecolorallocate ($logim, 255,204,204);		//roos
$background4    = imagecolorallocate ($logim, 36,239,240);		//cyaan
$background5    = imagecolorallocate ($logim, 204,204,204);		//licht grijs
$background6    = imagecolorallocate ($logim, 204,255,102);		//licht groen
$background7	= imagecolorallocate ($logim, 255,194,124);		//zalm
$color_tekst1	= imagecolorallocate ($logim, 216,27,227);		//donker rood
$color_tekst2	= imagecolorallocate ($logim, 216,161,224);		//donker groen
$color_tekst3	= imagecolorallocate ($logim, 80,58,129);		//donker blauw
$color_tekst4	= imagecolorallocate ($logim, 150,108,202);		//paars


$inputachter = array ("$background1", "$background2", "$background3", "$background4", "$background5", "$background6", "$background7" );//
$rand_inputachter = array_rand ($inputachter);
$inputtekst = array ("$color_tekst1", "$color_tekst2", "$color_tekst3", "$color_tekst4"); //
$rand_inputtekst = array_rand ($inputtekst);
//$rand_keys = array_rand ($input);
//print $input[$rand_keys[0]]."\n";
//print $input[$rand_keys[1]]."\n"; 


imagefilledrectangle($logim,0,0,$immax_x,$immax_y,$rand_inputachter);



ImageTTFText($logim, 30, 0, 50, 35,$rand_inputtekst, "CORDIA.TTF",$lognummer );

header("Content-type: image/png");
imagepng($logim);
imagedestroy($logim);
?>

Why is the fontcolor from the same array as my background color?

I don't understand it

Weedpacket

This bit in the [man]array_rand[/man] manual might explain why:

If you are picking only one entry, array_rand() returns the key for a random entry. Otherwise, it returns an array of keys for the random entries. This is done so that you can pick random keys as well as values out of the array.

And the keys for the background colour array all range from 0 to 6, while the keys for the text colour array range from 0 to 3. So the number that array_rand() returns is always going to be less than seven - and the first seven colours allocated to the image are all background colours.

So you need an extra step to go from array keys to array values, viz:

$rand_inputachter = $inputachter[array_rand ($inputachter)];

and the same for the text colour.

PS: You really don't need all those quotes in the array() lines. array($background1, $background2, ...) will work perfectly well (and even be a bit better).

gvanaco

if my english is good, means it that I have to do your step if I use more then one array in the script.

Thanks
gvanaco

I am so heppy that I post the working script

<?


$immax_x = 200;
$immax_y = 50;
$logim        = imagecreate($immax_x,$immax_y);
$lognummer = rand (10,99) .rand (10,99) . rand (10,99); //nummer maken

$background1	= imagecolorallocate($logim, 255, 255, 10);	//wit
$background2    = imagecolorallocate ($logim, 255,247,128);		//geel
$background3    = imagecolorallocate ($logim, 255,204,204);		//roos
$background4    = imagecolorallocate ($logim, 36,239,240);		//cyaan
$background5    = imagecolorallocate ($logim, 204,204,204);		//licht grijs
$background6    = imagecolorallocate ($logim, 204,255,102);		//licht groen
$background7	= imagecolorallocate ($logim, 255,194,124);		//zalm
$color_tekst1	= imagecolorallocate ($logim, 216,27,227);		//donker rood
$color_tekst2	= imagecolorallocate ($logim, 216,161,224);		//donker groen
$color_tekst3	= imagecolorallocate ($logim, 80,58,129);		//donker blauw
$color_tekst4	= imagecolorallocate ($logim, 150,108,202);		//paars


$inputachter = array ($background1, $background2, $background3, $background4, $background5, $background6, $background7 );//
$inputtekst = array ($color_tekst1, $color_tekst2, $color_tekst3, $color_tekst4); //

$rand_inputachter = $inputachter[array_rand ($inputachter)];
$rand_inputtekst = $inputtekst[array_rand ($inputtekst)];


imagefilledrectangle($logim,0,0,$immax_x,$immax_y,$rand_inputachter);



ImageTTFText($logim, 30, 0, 50, 35,$rand_inputtekst, "CORDIA.TTF",$lognummer );

header("Content-type: image/png");
imagepng($logim);
imagedestroy($logim);
?>

Be careful with the textfont if you dont have it in that drectory, upload one and change the fontname.

Weedpacket

Originally posted by gvanaco
if my english is good, means it that I have to do your step if I use more then one array in the script.

It's probably wiser to do it even if you did only have the one array.

The first colour allocated happened to go into array position 0 and palette position 0, the second colour allocated happened to go into array position 1 and palette position 1, and so on. But that is just a coincidence. If you'd had something like

$background_colour = imagecolorallocate($logim,0,0,0);

that would go in palette position 0. If you then had an array of text colours, the first colour would go in palette position 1, but array position 0, and they won't match up any more (which is why the second set of colours was not being used - their array positions and palette positions didn't match).