Cannot access empty property error

[versus1994]

Hey guys!

So I have some trouble with this fatal error:

Cannot access empty property

 

And the line of error is:

$returntime = $units->$y['endtime']-time();

More of the code if it's not enough:

$DefenderUnit = array();
$DefenderUnit = $database->getUnit($data['to']);
$evasion = $database->getVillageField($data['to'],"evasion");
$maxevasion = $database->getUserField($DefenderID,"maxevasion",0);
$gold = $database->getUserField($DefenderID,"gold",0);
$playerunit = ($targettribe-1)*10;
$cannotsend = 0;
$movements = $database->getMovement("34",$data['to'],1);
for ($y = 0; $y < count($movements); $y++) {
$returntime = $units->$y['endtime']-time();
if ($units->$y['sort_type'] == 4 && $units->$y['from'] != 0 && $returntime <= 10) {
$cannotsend = 1;
}
}
if ($evasion == 1 && $maxevasion > 0 && $gold > 1 && $cannotsend == 0 && $dataarray[$data_num]['attack_type'] > 2) {
$totaltroops = 0;
for ($i = 1; $i <= 10; $i++) {
$playerunit += $i;
$data['u'.$i] = $DefenderUnit['u'.$playerunit];
$database->modifyUnit($data['to'],array($playerunit),array($DefenderUnit['u'.$playerunit]),array(0));
$playerunit -= $i;
$totaltroops += $data['u'.$i];
}
$data['u11'] = $DefenderUnit['hero'];
$totaltroops += $data['u11'];
if ($totaltroops > 0) {
$database->modifyUnit($data['to'],array("hero"),array($DefenderUnit['hero']),array(0));
$attackid = $database->addAttack($data['to'],$data['u1'],$data['u2'],$data['u3'],$data['u4'],$data['u5'],$data['u6'],$data['u7'],$data['u8'],$data['u9'],$data['u10'],$data['u11'],4,0,0,0,0,0,0,0,0,0,0,0);
$database->addMovement(4,0,$data['to'],$attackid,microtime(true),microtime(true)+(180/EVASION_SPEED));
$newgold = $gold-2;
$newmaxevasion = $maxevasion-1;
$database->updateUserField($DefenderID, "gold", $newgold, 1);
$database->updateUserField($DefenderID, "maxevasion", $newmaxevasion, 1);
}
}

Any ideas?

[requinix]

$units->$y['endtime']

That has one of two meanings, depending on your version of PHP, but neither of which are what you want:

1. Take $units, find a property named according to the value of $y, then treat it as an array and get its 'endtime' value.

2. Take $y, treat it as an array and gets its 'endtime' value, then use that value as the name of a property in the $units object.

 

In other words, writing "$y" makes it a variable and not a name of a property. Drop the $.

$units->y['endtime']