IMEI sum Check PHP

[bOrN2pwn]

Just needs to be fixed and it will work with some networks....

<?
//Grabs the IMEI
$imei = $_REQUEST["imei"];

//Loops all the Odd IMEI numbers, then times it by 2
for( $i = 0 ; $i<14 ; $i++ ) {
    $imei1 = $imei{$i}*2;
//THIS is where the main error is. It always shows up as Zero.
    $imei1a = $imei1a + $imei1{0} + $imei1{1}); 
}
//Another Loop, For even numbers
for( $i = 1; $i<14; $i++) {
    $imei2 = $imei{$i}*1;
    $imei2a = $imei2 + $imei2a;
}

//Adds the Results together.
$imei3 = $imei2a + $imei1a;

//If the Remainder is 0 the sum check equals zero
if($imei3 % 10 == 0) {
 $sum == 0;
 }
//Otherwise:
     else {
    $sum == 10 - $imei3 % 10; 
    }
    //Validation stage - Finds if valid or not
if($imei3 % 10 != $sum) {
    echo 'Invalid';
    } else {
        echo 'Valid!';
        }
    
?>

find this

for( $i = 0 ; $i<14 ; $i++ ) 
{    $imei1a[$i] = $imei[$i]*2;    } 

[neostar]

How u r going to obtain there imei nos?

[bOrN2pwn]

Its to validate.... read before you post.....

[ksg91]

Its to validate.... read before you post.....

then how it depends on network?

[bogart]

Just needs to be fixed and it will work with some networks....

<?
//Grabs the IMEI
$imei = $_REQUEST["imei"];

//Loops all the Odd IMEI numbers, then times it by 2
for( $i = 0 ; $i<14 ; $i++ ) {
    $imei1 = $imei{$i}*2;
//THIS is where the main error is. It always shows up as Zero.
    $imei1a = $imei1a + $imei1{0} + $imei1{1}); 
}
//Another Loop, For even numbers
for( $i = 1; $i<14; $i++) {
    $imei2 = $imei{$i}*1;
    $imei2a = $imei2 + $imei2a;
}

//Adds the Results together.
$imei3 = $imei2a + $imei1a;

//If the Remainder is 0 the sum check equals zero
if($imei3 % 10 == 0) {
 $sum == 0;
 }
//Otherwise:
     else {
    $sum == 10 - $imei3 % 10; 
    }
    //Validation stage - Finds if valid or not
if($imei3 % 10 != $sum) {
    echo 'Invalid';
    } else {
        echo 'Valid!';
        }
    
?>

find this

for( $i = 0 ; $i<14 ; $i++ ) 
{    $imei1a[$i] = $imei[$i]*2;    } 

i first saw it here IMEI sum Check PHP - Nokia Flash Reverse Electronic Engineering. looks nice.

[kiss]

lol bogart good reply ;)

[godsmurf]

Is this any good?

It seems to work for me but is probably doing everything the hardest way ever..

function checkImei($imei) {
	$i = 0;
	$total = 0;
	
	$imei = strval($imei);
	
	while ($i < 14) {
		$digit = intval($imei[$i]);
		
		if ($i == 1 || $i == 3 || $i == 5 || $i == 7 || $i == 9 || $i == 11 || $i == 13) {
			$num = $digit * 2;
			$num = strval($num);
			
			if ($num > 9) {
				$digit1 = intval($num[0]);
				$digit2 = intval($num[1]);
				
				$new_num = $digit1 + $digit2;
				
			} else {
				$new_num = $num;
			}
		} else {
			$new_num = $digit;
		}
		$total = $total + $new_num;
	
		$i++;
	}
	$tens = $total / 10;
	$int = intval($tens);

	$checksum = 10 - ($total - ($int * 10));
	
	$result = strval(substr($imei,0,14)).strval($checksum);

	if ($imei == $result) {
		return true;
	} else {
		return false;
	}
}

Also only works for 15 digit IMEI not IMEISV which, from what I have looked at, you just have to accept as a random bunch of number 16 characters long.

[metulj]

Is this any good?

It seems to work for me but is probably doing everything the hardest way ever..

function checkImei($imei) {
$i = 0;
$total = 0;

$imei = strval($imei);

while ($i < 14) {
$digit = intval($imei[$i]);

if ($i == 1 || $i == 3 || $i == 5 || $i == 7 || $i == 9 || $i == 11 || $i == 13) {
$num = $digit * 2;
$num = strval($num);

if ($num > 9) {
$digit1 = intval($num[0]);
$digit2 = intval($num[1]);

$new_num = $digit1 + $digit2;

} else {
$new_num = $num;
}
} else {
$new_num = $digit;
}
$total = $total + $new_num;

$i++;
}
$tens = $total / 10;
$int = intval($tens);

$checksum = 10 - ($total - ($int * 10));

$result = strval(substr($imei,0,14)).strval($checksum);

if ($imei == $result) {
return true;
} else {
return false;
}
}

Also only works for 15 digit IMEI not IMEISV which, from what I have looked at, you just have to accept as a random bunch of number 16 characters long.

IMEI contain ONLY 15 digits...
so as far as that concerne.. it's fine...
other than that code is useless...
you can obtain IMEI, only from unsecured networks... that suck..