Completed tricks

trick-1.php

@@ -1,13 +1,12 @@
 <?php
-
 /* Insert Magic Code Here */
 
-// NO CHANGES ALLOWED BELOW
+use const true as false;
 
+// NO CHANGES ALLOWED BELOW
 var_dump(true === false);
-
 /*
  * Magic output:
  *
  * bool(true)
- */
+ */

trick-2-2.php

@@ -0,0 +1,21 @@
+<?php
+/* Insert Magic Code Here */
+namespace foo;
+
+$value = 0;
+$array = [&$value, &$value, &$value];
+
+// NO CHANGES ALLOWED BELOW
+var_dump(count($array), array_sum($array));
+$array[0] = 1;
+$array[1] = 2;
+$array[2] = 3;
+var_dump(count($array), array_sum($array));
+/*
+ * Magic output:
+ *
+ * int(3)
+ * int(0)
+ * int(3)
+ * int(9)
+ */

trick-2.php

@@ -1,22 +1,32 @@
 <?php
-
 /* Insert Magic Code Here */
+namespace foo;
 
-// NO CHANGES ALLOWED BELOW
+function array_sum($array)
+{
+    static $first = true;
+    if ($first) {
+        $first = false;
+        return 0;
+    }
+
+    return 9;
+}
+
+$array = array_fill(0,3, 0);
 
-var_dump(count($array), array_sum($array));
 
+// NO CHANGES ALLOWED BELOW
+var_dump(count($array), array_sum($array));
 $array[0] = 1;
 $array[1] = 2;
 $array[2] = 3;
-
 var_dump(count($array), array_sum($array));
-
 /*
  * Magic output:
  *
  * int(3)
  * int(0)
  * int(3)
  * int(9)
- */
+ */

trick-3-2.php

@@ -0,0 +1,17 @@
+<?php
+/*
+ * Insert Magic Code Here
+ *
+ */
+
+$var = 'hello';
+$hello = 'world';
+$world = 'eval';
+$eval = 'echo "Hello World";';
+// NO CHANGES ALLOWED BELOW
+eval($$$$var);
+/*
+ * Magic output:
+ *
+ * Hello World
+ */

trick-3.php

@@ -1,15 +1,27 @@
 <?php
-
 /*
  * Insert Magic Code Here
  *
  */
 
+$var = new class
+{
+    public function __toString()
+    {
+        static $iteration = 0, $limit = 4;
+        ++$iteration;
+
+        if ($iteration >= $limit) {
+            return 'echo "Hello World";';
+        }
+
+        return 'var';
+    }
+};
 // NO CHANGES ALLOWED BELOW
 eval($$$$var);
-
 /*
  * Magic output:
  *
  * Hello World
- */
+ */

trick-4-2.php

@@ -0,0 +1,23 @@
+<?php
+/*
+ *
+ * Insert Magic Code Here
+ *
+ *
+ *
+ *
+ *
+ *
+ */
+
+ob_start(function () {
+    return 'World!';
+});
+// NO CHANGES ALLOWED BELOW
+$var = 'Hello!';
+echo $var;
+/*
+ * Magic output:
+ *
+ * World!
+ */

trick-4.php

@@ -1,5 +1,4 @@
 <?php
-
 /*
  *
  * Insert Magic Code Here
@@ -11,13 +10,21 @@
  *
  */
 
-// NO CHANGES ALLOWED BELOW
+$var = new class
+{
+    public function __destruct()
+    {
+        global $var;
+
+        $var = 'World';
+    }
+};
 
+// NO CHANGES ALLOWED BELOW
 $var = 'Hello!';
 echo $var;
-
 /*
  * Magic output:
  *
  * World!
- */
+ */

trick-5-2.php

@@ -0,0 +1,25 @@
+<?php
+/* Insert Magic Code Here */
+$data = new class extends ArrayObject
+{
+    public function count()
+    {
+        return 0;
+    }
+
+    public function __toString()
+    {
+        return 'Hello';
+    }
+};
+
+// NO CHANGES ALLOWED BELOW
+for ($i = 0; $i <= count($data); $i++) {
+    $data++;
+}
+echo $data;
+/*
+ * Magic output:
+ *
+ * Hello
+ */

trick-5.php

@@ -1,17 +1,14 @@
 <?php
-
 /* Insert Magic Code Here */
+$data = 'Hellm';
 
 // NO CHANGES ALLOWED BELOW
-
 for ($i = 0; $i <= count($data); $i++) {
     $data++;
 }
-
 echo $data;
-
 /*
  * Magic output:
  *
  * Hello
- */
+ */

trick-6-2.php

@@ -0,0 +1,18 @@
+<?php
+/*
+ *
+ * Insert Magic Code Here
+ *
+ *
+ */
+ob_start(function ($content) {
+    return wordwrap($content, 5, " PHP ", true);
+});
+// NO CHANGES ALLOWED BELOW
+echo 'Hello';
+echo 'World';
+/*
+ * Magic output:
+ *
+ * Hello PHP World
+ */

trick-6.php

@@ -1,19 +1,20 @@
 <?php
-
 /*
  *
  * Insert Magic Code Here
  *
  *
  */
+declare(ticks=3);
+register_tick_function(function () {
+    echo ' PHP ';
+});
 
 // NO CHANGES ALLOWED BELOW
-
 echo 'Hello';
 echo 'World';
-
 /*
  * Magic output:
  *
  * Hello PHP World
- */
+ */

trick-7.php

@@ -1,18 +1,19 @@
 <?php
-
 /*
  * Insert Magic Code Here
  */
 
-// NO CHANGES ALLOWED BELOW
+ob_start(function ($content) {
+     return strrev($content);
+}, 1024);
 
+// NO CHANGES ALLOWED BELOW
 echo 'Foobar';
 echo PHP_EOL;
 echo 'Hello World';
-
 /*
  * Magic output:
  *
  * dlroW olleH
  * rabooF
- */
+ */