diff --git a/project.php b/project.php
new file mode 100644
index 0000000..cd09bf4
--- /dev/null
+++ b/project.php
@@ -0,0 +1,48 @@
+<?php
+function IsValid($card) {
+
+    for ($i = 0; $i < count($card); $i += 2) {
+        $card[$i] *= 2;
+
+        if($card[$i] >= 10) {
+            $card[$i] = $card[$i] % 10 + intdiv($card[$i],10);
+        }
+    }
+
+    $isValid = (array_sum($card) % 10 == 0) ? "true" : "false";
+
+    return ["isValid" => $isValid];
+
+}
+
+function PaymentSystem($card) {
+
+    $paymentSystem = ["4" => "VISA",
+    "5"=>"Mastercard ",
+    "220"=>"MIR"];
+
+    if (array_key_exists($card[0], $paymentSystem)) {
+        $paymentSystem = $paymentSystem[$card[0]];
+    }
+    elseif (array_key_exists(substr($card, 0, 3), $paymentSystem)){
+        $paymentSystem = $paymentSystem[substr($card, 0, 3)];
+    }
+    else {
+        $paymentSystem = "UNKNOWN";
+    }
+
+    return ["paymentSystem" => $paymentSystem];
+}
+
+$numberCard = readline("Введите номер карты:");
+
+$newNumberCard = str_replace(' ','',$numberCard);
+$mas = array();
+
+for ($i = 0; $i < strlen($newNumberCard); $i++) {
+    $mas[$i] = (int)($newNumberCard[$i]);
+}
+
+print_r(IsValid($mas));
+print_r(PaymentSystem($numberCard));
+?>
\ No newline at end of file