While trying to read data from a socket ran the following code through the interpreter:
function get_song_title($stream){
$song;
$sc_return = array();
$sc_return = explode("
",$stream);
$song = $sc_return[4];
return $song;
}
This will succeed in getting the information I need 20% of the time maybe.
However when I do:
function get_song_title($stream){
$song;
$sc_return = array();
$sc_return = explode("
",$stream);
echo $sc_return[4];
$song = $sc_return[4];
return $song;
}
it will succeed 100% of the time. Any method to print the array(or its elements) out will make it to work without a problem. If I simply to try return it or assign it the undefined offset 4 message comes up.
this also includes using print_r($sc_return); which will always succeed.
Any ideas why I would need to print the array element out for it to succeed all the time?
not sure about why you need echo / print out to work, but...
try to do
var_dump($sc_rturn);
to see what you are getting.
also to check for undefined index, you should do
isset($sc_return[4]);
also you can count your results using
count($sc_return);