Data commit

Task/Semiprime/PHP/semiprime.php

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+<?php
+// Semiprime
+
+function primeFactorsCount($n)
+{
+    $n = abs($n);
+    $count = 0; // Result
+    if ($n >= 2)
+        for ($factor = 2; $factor <= $n; $factor++)
+            while ($n % $factor == 0) {
+                $count++;
+                $n /= $factor;
+            }
+    return $count;
+}
+
+echo "Enter an integer: ",
+$n = (int)fgets(STDIN);
+echo (primeFactorsCount($n) == 2 ?
+      "It is a semiprime.\n" : "It is not a semiprime.\n");
+?>