tasks a-s

Task/Pangram-checker/PHP/pangram-checker.php

@@ -0,0 +1,20 @@
+function isPangram($text) {
+    foreach (str_split($text) as $c) {
+        if ($c >= 'a' && $c <= 'z')
+            $bitset |= (1 << (ord($c) - ord('a')));
+        else if ($c >= 'A' && $c <= 'Z')
+            $bitset |= (1 << (ord($c) - ord('A')));
+    }
+    return $bitset == 0x3ffffff;
+}
+
+$test = array(
+    "the quick brown fox jumps over the lazy dog",
+    "the quick brown fox jumped over the lazy dog",
+    "ABCDEFGHIJKLMNOPQSTUVWXYZ",
+    "ABCDEFGHIJKL.NOPQRSTUVWXYZ",
+    "ABC.D.E.FGHI*J/KL-M+NO*PQ R\nSTUVWXYZ"
+);
+
+foreach ($test as $str)
+    echo "$str : ", isPangram($str) ? 'T' : 'F', '</br>';