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Need help


lilNuki

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I need to to 3 php code exercises at school but i dont know have to us this commands.

actually i dont have php coding skills.

1. If u open page then showing time and if time is 12 o'clock then there appears text "afternoon" if time is 18 then text "good night" and if time is 06:00 then good morning. I dont have any clue how do do it.

2. Second one ise calc i have googled them but they all are so diificult to under stand.

i have made only form but dont know how do make php code for this.

<form method="POST" action="?page=calc">
<label>Number 1: </label><input type="text" name="num1" />
<select>
  <option value="add" name="sum">Add</option>
  <option value="sub" name="sum">Subtract</option>
  <option value="mul" name="sum">Multiply </option>
  <option value="div" name="sum">Divide</option>
</select>
<label>Number 2: </label><input type="text" name="num2" />
<br />
<input type="submit" value="CALC" />

and after i calc then there should be option box to remember first number to continue calculating if need.

 

3. and third exercise is if i put roman numberto box then it should be coding this number to arabic number like "L=50" and backwards too "50=L".

 

I hope that I didnt make trouble for asking this. I really need help for this =)

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This one what i have made. nothing more

<?php
$tiitel = "Teine tund";
$aeg = date("H:i:s");
$leht = $_GET["leht"];
if($leht == "teine") {
      $pealkiri = "Ülesanne 2";
  $sisu = "Muutuja väärtus on: ";
  $sisu .= $_GET["muutuja"]. "<br>ja selle pikkus on: ".
		strlen($_GET["muutuja"]);
  }
elseif($leht == "kolmas") 
{
     $pealkiri ="Ülesanne 3";
	 $sisu =" <b>Vormid</b><br>" ;
	 $sisu .= <<<EOF
	 <form method="post" action="?leht=kolmas">
	 Nimi: <input type="text" name="nimi"><br>
	 E-post: <input type="text" name="epost"><br>
	 <input type="submit" value="SAADA" name="saada">
	 </form>

EOF;
if(isset($_POST["saada"])){ //if $_POST["saada"] !=""
 $sisu.="<br><br>".
 "Vormilt saadi järgmised andmed:<br>".
	"Nimi on ". $_POST["nimi"]." ja e-post on ".
	$_POST["epost"]."<br>";

	}
}
elseif($leht == "KALK"){
	$pealkiri = "KALK";
	$sisu = 'Kalkulaator';
	$sisu .= <<<EOF
<form method="POST" action="?leht=KALK">
<label>Arv 1: </label><input type="text" name="arv1" />
<select>
  <option value="add" name="sum">liida</option>
  <option value="sub" name="sum">lahuta</option>
  <option value="mul" name="sum">korruta</option>
  <option value="div" name="sum">jaga</option>
</select>
<label>Arv 2: </label><input type="text" name="arv2" />
<br />

<input type="submit" value="Sisesta" />
</form>
EOF;
if ($_POST['arv1']){
$arv1 = $_POST['arv1'];
$arv2 = $_POST['arv2'];
$arv3 = $arv1+$arv2;
$arv4 = $arv1-$arv2;
$arv5 = $arv1*$arv2;
$arv6 = $arv1/$arv2;
}
echo "Nende summa on:"; echo $arv3; echo "<br>Nende vahe on:"; echo $arv4; echo "<br>Nende korrutis on:"; echo $arv5; echo "<br>Nende jagatis on:"; echo $arv6;
}
elseif($leht == "Galerii") {
$pealkiri = "Pildigalerii";
$pilt = $_GET["pilt"];
if($pilt){
	$kuva = '<img src="'.$pilt.'.png" alt=pilt"'.$pilt.'">';
}
else $kuva = "Vali menüüst pilt.";
$sisu = <<<EOF
<table  border="1"> <tr><td width="150px"><ul>
<li><a href="?leht=Galerii&pilt=pilt1">Pilt 1</a></li>
<li><a href="?leht=Galerii&pilt=pilt2">Pilt 2</a></li>
<li><a href="?leht=Galerii&pilt=pilt3">Pilt 3</a></li>
<li><a href="?leht=Galerii&pilt=pilt4">Pilt 4</a></li>
<li><a href="?leht=Galerii&pilt=pilt5">Pilt 5</a></li>
</ul></td><td>
$kuva
</td></tr></table>
EOF;

}
else{
$pealkiri = " Tere tulemast !";
$sisu = "Hetkene kell $aeg";
}

function leht2() {
$s = "";
     for( $i=1; $i<=10; $i++) {
  $s .= $i . "->";
 }
 $s .= "...<br>";
 return $s;
}

?>

<html>
<head>
<title><?=$tiitel;?></title>
</head>
<body>
<h1><?=$pealkiri;?></h1>


<br>
<a href="?leht=">Esimene leht</a>  |
<a href="?leht=teine&muutuja=Tere Marco">Teine leht</a> |
<a href="?leht=kolmas">Kolmas leht</a> |
<a href="?leht=KALK">Kalkulaator</a> |
<a href="?leht=Galerii">Galerii</a>
<br>
<?=$sisu;?>
</body>
</html>

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