- substr: documentation ( source)
- strpos: documentation ( source)
- print_r: documentation ( source)
- header: documentation ( source)
<?php
$_SERVER["HTTP_USER_AGENT"] = "TeachMe-App v000003 Android 4.4.2 on generic";
$MinVersion["TeachMe-App"] = 000004;
if(strpos($_SERVER["USER_AGENT"], "v") > 0)
{
//6-Stellige Versionsnummer hinter dem v auslesen
$Client["Version"] = substr($_SERVER["HTTP_USER_AGENT"], strpos($_SERVER["HTTP_USER_AGENT"], "v") + 1, 6);
$Client["Version"] = is_int($Client["Version"]) ? intval($Client["Version"]) : -1;
}
if($Client["Version"] < $MinVersion[$Client["Client"]])
{
header("X-API-Status: 40004 Client-Version Too Old"); die("40004");
}
print_r($Client);
die("40000");