Added Tutorial 8 code

Author: dima_los

tutorial-008-operators-p2/equality-operators.php

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+<?php
+
+/**
+ * == - Equal <- ===
+ * != - Not Equal <- !==
+ * >= - Greater than or equal to
+ * <= - Less than or equal to
+ */
+
+$identicalResult = 2 === 2;
+var_dump($identicalResult, 2, 'Spider man');
+
+var_dump($identicalResult);
+var_dump(2);
+var_dump('Spider man');
+
+
+var_dump(2 === '2');
+var_dump(2 == '2');
+var_dump(true == 1);
+var_dump(true == '0');
+var_dump(3 <= 2);
+var_dump(3 < 2 || 3 === 2);

tutorial-008-operators-p2/multiple-ifs.php

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+<?php
+
+$playerEnergy = 40;
+$shieldCharged = false;
+$droneAlert = false;
+
+
+if ($droneAlert) {
+    if ($playerEnergy < 100) {
+        if ($shieldCharged) {
+            echo 'Your personal shield is charged. This will deflect incoming laser shots!<br>';
+        } elseif ($playerEnergy > 50 && $droneAlert) {
+            echo 'Your shield is uncharged, but you"ll probably survive the incoming attack!<br>';
+        } else {
+            echo 'You are in danger! Charge your shield as soon as possible!<br>';
+        }
+
+        echo 'Your energy is below maximum. Find another energy cell!<br>';
+    } else {
+        echo 'You have maximum energy level!<br>';
+    }
+
+    echo 'Warning! Enemy drone detected in proximity! Take cover or disable it!<br>';
+} else {
+    echo 'We are safe for now and have some time to recover before the next attack. <br>';
+}