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61tema.php
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<?php
//Užduotis: atvaizduoti 5 pasirinkimus, bei balsavimo kiekio liniją atvaizduoji kaip kintamo ilgio paveikslėlį
$failas = $_SERVER['SCRIPT_FILENAME'].".txt";
$balsas = @$_GET['balsas']; //balsavima valdantis kintamasis
define("COUNT", 5); //if changed number - change 10th line and $colors array
// failo sukurimas, kuriame laikoma statistika
if (@filesize($failas) == 0){
$fp = fopen($failas, "w");
fwrite($fp, "-|0|0|0|0|0");
fclose($fp);
}
if ($balsas){
// apklausos balso irašymas
$h = file($failas);
$hits = explode("|", $h[0]);
$hits[$balsas]++;
ksort ($hits); //butina išrikiuoti vėl, nes kažkodel išsimaišo elementai
$h = implode ("|", $hits);
$fp = fopen($failas, "w");
fwrite($fp, $h);
fclose($fp);
$viso = 0;
for ($i = 1; $i <= COUNT; $i++) {
$viso = $viso + $hits[$i];
}
//print to monitor
$colors = [1=>"red", 2=>"blue", 3=>"green", 4=>"yellow", 5=>"orange"];
for ($i = 1; $i <= COUNT; $i++) {
echo "$i: ${hits[$i]}";
$width = (100 * $hits[$i] / $viso) . "px";
echo " <img src=\"".$_SERVER['PHP_SELF'].".png\" width=\"$width\" height=\"12px\" alt=\"pic\" /><br/>";
}
echo "<br/>Viso $viso <a href = \"".$_SERVER['PHP_SELF']."\" >atgal</a>";
} else {
//jeigu nera valdancio kintamojo, spausdinama balsavimo forma
echo '<form action = "'.$_SERVER['PHP_SELF'].'" method="GET">';
for ($i = 1; $i <= COUNT; $i++) {
echo $i.' <input type="radio" name="balsas" value="'.$i.'" /><br/>';
}
echo "<input type=\"submit\" value=\"Pateikti\" />";
echo "</form>";
}
?>