For-løkke

for($i = 1 ; $i <= 10 ; $i++){
	echo $i;
}

While-løkke

$i = 1;
while($i <= 10){
	echo $i;
	$i++;
}

Foreach

If

if($tal == 8) {
	$res = 10 * $tal;
}
	

If foranstillet 0

$res = ($tal <= 9) ? "0".$tal : $tal;
	

If - else

if($tal == 2) {
	$res = 1;
}else{
	$res = 2;
}
	

Switch-case

switch ($bogstav) {
	case "a" :
		$res = 1;
		break;
	
	case "b" :
		$res = 2;
		break;
	
	default :
		$res = 3;
		break;
}

Get the remote address

function getIp() {
    $ip = $_SERVER['REMOTE_ADDR'];
    if (!empty($_SERVER['HTTP_CLIENT_IP'])) {
    	$ip = $_SERVER['HTTP_CLIENT_IP'];
    } elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
    	$ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
    }
    return $ip;
}

Date - Time - MkTime

• $idag = date('d-m-Y');
• $tidsstempel = time();
• $dag = date('d-m-Y',$tidsstempel);
• $maketime = mktime('0','0','0','11','28','2009');
•  
• if(is_numeric($tal)){}