不知道错哪了,快崩溃了

不知道哪里错了,快崩溃了$data1stripslashes($data1)$aarstrncasecmp($data1,select,6)$arr1strnca

不知道哪里错了,快崩溃了
$data1=stripslashes($data1);
$aar=strncasecmp($data1,"select",6);
$arr1=strncasecmp($data1,"insert",6);
if((arr!=0)&&(arr1!=0))
{
  echo "$arr";
  echo "<br>";
  echo "<br>";
  echo "$data1";
  echo "$arr1";
  echo "<br>";

  exit( "false to run sqlcript");
   
   
}

[解决办法]

if(($aar!=0)&&($arr1!=0))
{
echo $aar;

名字你看叉了