<?php
function ean_checksum($eancode) {
$result = false;
if(strlen($eancode) == 13) {
$check_code = substr($eancode, 12, 1);
$eancode = substr($eancode, 0, 12);
$oddsum=0;
$evensum=0;
$total=0;
$eanvalue=$eancode;
$finalean = strrev(substr($eanvalue,0,12));
for($i=0;$i<strlen($finalean);$i++) {
if(($i % 2) == 0) {
$oddsum += intval($finalean[$i]);
}
else {
$evensum += intval($finalean[$i]);
}
}
$total = ($oddsum * 3) + $evensum;
$check = intval(10 - ceil($total % 10.0)) %10;
if($check == $check_code) {
$result = true;
}
}
return $result;
}
$t = array('3603912289411','0709710008000','6039122554470','0709711001000','0716770159659','7167700499971','0370079230001','0744361007200','0005280050201','0005280010201');
foreach($t as $v) {var_dump(ean_checksum($v));}
- Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
- bool(false)
bool(false)
bool(false)
bool(false)
bool(false)
bool(false)
bool(false)
bool(false)
bool(false)
bool(false)
preferences:
214.86 ms | 406 KiB | 310 Q