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Create code #2

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31 changes: 31 additions & 0 deletions code
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Original file line number Diff line number Diff line change
@@ -0,0 +1,31 @@
<?php

function GetNameCard($num){
if ($num[0] == '4')
return 'VISA';
elseif ($num[0] == '5')
return 'Mastercard';
elseif (substr($num, 0, 3) == '220')
return 'MIR';
else
return 'UNKNOWN';
}

$num = '4561 2612 1234 5467';
$num = str_replace(' ', '',$num);
$sum=0;
for ($i = 0; $i< strlen($num); $i++){
if ($i%2==0){
$el = (int)$num[$i]*2;
$sum += strlen($el)!=2 ? $el : $el - 9;
}
else{
$sum += (int)$num[$i];
}
}
if ($sum % 10 != 0)
print_r(['isValid' => 'False', 'paymentSystem' => GetNameCard($num)]);
else
print_r(['isValid' => 'True', 'paymentSystem' => GetNameCard($num)]);

?>