ขอสอบถามเรื่อง กำหนดตัวแปรในคำสั่ง command line มีโค้ดตัวอย่างให้ดูคับ

<?php
include ("connect.php");
$sql ="select * from equipment";
$result=mysql_query($sql);
while($row=mysql_fetch_array($result))
	{
        $equipment_id = $row['equipment_id'];
		$ip_address = $row['ip_address'];
   //echo $row['equipment_id'];
   //echo $equipment_id;
   echo "<br>";
   echo $row['ip_address'];
   echo "<br>";	
	}
    

$str = shell_exec("snmpwalk -v 1 -c public $ip_address .1.3.6.1.2.1.17.4.3.1.1.0 ");

$array=explode('SNMPv2-SMI',$str);
array_shift($array);

$array2=array();

foreach($array as $value){

$str=strchr($value,'Hex-STRING: ');

$array2[]=str_ireplace('Hex-STRING: ','',$str);

}
?>

<?php
include ("connect.php");

$sql ="select * from equipment";
$result=mysql_query($sql);
while($row=mysql_fetch_array($result))
	{
        $equipment_id = $row['equipment_id'];
		$ip_address = $row['ip_address'];
   //echo $row['equipment_id'];
   //echo $equipment_id;
   echo "<br>";
   echo $ip_address;
   echo "<br>";	
	}
     
$str = shell_exec("snmpwalk -v 1 -c public $ip_address .1.3.6.1.2.1.17.4.3.1.1.0 ");

$array=explode('SNMPv2-SMI',$str);
array_shift($array);

$array2=array();

foreach($array as $value){

$str=strchr($value,'Hex-STRING: ');

$array2[]=str_ireplace('Hex-STRING: ','',$str);





}
echo count($array2);

                function mac($id)
                                 {
                                     if($id=='1')
	                                               {
                                                      $strSQL = "DELETE FROM mac";
                                                      $strSQL .="WHERE mac_id = '".$_GET["mac_id"]."' ";
                                                      $objQuery = mysql_query($strSQL);
	                                               }
									 
									 else if($id=='2')
										             
  									                {
                                                       for($i=0;$i<count($array2);$i++)
	                                                            {
		                                                           if($array2[$i] != "")
		                                                                                {
			                                                                             $strSQL = "INSERT INTO mac ";
			                                                                             $strSQL .="(mac_id,mac_address) ";
			                                                                             $strSQL .="VALUES ";
			                                                                             $strSQL .="('', ";
			                                                                             $strSQL .="'$array2[$i]') ";
			                                                                             $objQuery = mysql_query($strSQL);
		                                                                                 }
		
		                                                               echo $strSQL;
                                                               	}
                                                     }
                                }
 $end = 2;
for ($i = 1 ; $i < $end; $i++) 
  mac($i); 



mysql_query($strSQL) OR die(mysql_error());

//print_r($array2);


?>

mysql_query($strSQL) OR die(mysql_error());