B4R Question passing value to php backend

Compiling & deploying Ino project (WEMOS LOLIN32 - COM6)    Error
Loading configuration...
Initializing packages...
DEBUG StatusLogger Using ShutdownCallbackRegistry class org.apache.logging.log4j.core.util.DefaultShutdownCallbackRegistry
DEBUG StatusLogger Not in a ServletContext environment, thus not loading WebLookup plugin.
DEBUG StatusLogger AsyncLogger.ThreadNameStrategy=UNCACHED (user specified null, default is UNCACHED)
TRACE StatusLogger Using default SystemClock for timestamps.
DEBUG StatusLogger org.apache.logging.log4j.core.util.SystemClock does not support precise timestamps.
DEBUG StatusLogger Not in a ServletContext environment, thus not loading WebLookup plugin.
DEBUG StatusLogger Took 0.123039 seconds to load 209 plugins from sun.misc.Launcher$AppClassLoader@af3868
DEBUG StatusLogger PluginManager 'Converter' found 44 plugins
DEBUG StatusLogger Starting OutputStreamManager SYSTEM_OUT.false.false-1
DEBUG StatusLogger Starting LoggerContext[name=af3868, org.apache.logging.log4j.core.LoggerContext@804139]...
DEBUG StatusLogger Reconfiguration started for context[name=af3868] at URI null (org.apache.logging.log4j.core.LoggerContext@804139) with optional ClassLoader: null
DEBUG StatusLogger Not in a ServletContext environment, thus not loading WebLookup plugin.
DEBUG StatusLogger PluginManager 'ConfigurationFactory' found 4 plugins
DEBUG StatusLogger Not in a ServletContext environment, thus not loading WebLookup plugin.
DEBUG StatusLogger Not in a ServletContext environment, thus not loading WebLookup plugin.
DEBUG StatusLogger Missing dependencies for Yaml support, ConfigurationFactory org.apache.logging.log4j.core.config.yaml.YamlConfigurationFactory is inactive
DEBUG StatusLogger Not in a ServletContext environment, thus not loading WebLookup plugin.
DEBUG StatusLogger Not in a ServletContext environment, thus not loading WebLookup plugin.
DEBUG StatusLogger Using configurationFactory org.apache.logging.log4j.core.config.ConfigurationFactory$Factory@167f57d
TRACE StatusLogger Trying to find [log4j2-testaf3868.properties] using context class loader sun.misc.Launcher$AppClassLoader@af3868.

Sub sendTag(Tag As String)
    Dim url As String=JoinStrings(Array As String("http://192.168.0.9/rfid.php?op=writeID&id=",Tag))
    HttpJob.Download(url)   
End Sub

$op="";
if (isset($_GET["op"])) {$op=$_GET["op"];}

switch ($op) {
case "":showID();break;
case "writeID":writeID();break;
case "readID":readID();break;
}

echo "----------------".chr(10);
print_r($_POST);
echo "----------------".chr(10);
print_r($_GET);
echo "----------------".chr(10);
print_r($_REQUEST);