Källkod
Välj en PHP-fil för att visa dess källkod.
- comments.php
- exercises.php
- exercises/form1.php
- exercises/form1_svar.php
- exercises/form2.php
- exercises/form2_svar.php
- exercises/form3.php
- exercises/form3_svar.php
- exercises/form4.php
- exercises/form4_svar.php
- exercises/form5.php
- exercises/form5_svar.php
- exercises/form6.php
- exercises/form6_svar.php
- exercises/form7.php
- exercises/form7_svar.php
- exercises/form8.php
- exercises/fragtavling.php
- exercises/index1.php
- exercises/mail_config.php
- exercises/ovning1.php
- exercises/ovning2.php
- exercises/ovning3.php
- exercises/ovning3b.php
- exercises/ovning4.php
- exercises/ovning5.php
- exercises/ovning6.php
- exercises/ovning7.php
- exercises/ovning8_funktion_hejsvejs.php
- exercises/ovning9_funktion_antal.php
- exercises/ovning10_funktion_storsta.php
- exercises/ovning11_funktion_storsta_minsta.php
- exercises/ovning12_funktion_medelvarde.php
- exercises/ovning13_funktion_jamna_tal.php
- exercises/phpintro.php
- exercises/testovning.php
- incl/config.php
- incl/footer.php
- incl/form_helpers.php
- incl/header.php
- index.php
- source.php
- viewsource.php
exercises/ovning7.php
<?php
$antalPrimtal = 0;
$tal = 2;
echo "De 100 första primtalen:<br>";
while ($antalPrimtal < 100) {
$arPrimtal = true;
for ($delare = 2; $delare < $tal; $delare++) {
if ($tal % $delare == 0) {
$arPrimtal = false;
break;
}
}
if ($arPrimtal) {
echo $tal . " ";
$antalPrimtal++;
}
$tal++;
}
echo "<br><br>";
echo "Antal primtal: " . $antalPrimtal;
?>