├── README.md
├── trick-1.php
├── trick-2.php
├── trick-3.php
├── trick-4.php
├── trick-5.php
├── trick-6.php
└── trick-7.php


/README.md:
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 1 | PHP Magic Tricks
 2 | ================
 3 | 
 4 | *This repository is part of #sfugbln XMAS meetup on December 20th in Berlin*
 5 | 
 6 | Credits to all anonymous php magicians on 3v4l.org
 7 | 
 8 | What is this?
 9 | -------------
10 | 
11 | * this repository contains 5 small code snippets with PHP magic in it
12 | * at the bottom of every snippet is a definition of expected output
13 | * in every file you will find a `Insert Magic Code Here` comment as placeholder
14 | * the length of the comment represents the length of my solution
15 | * there might be multiple solutions per snippet 
16 | 
17 | Rules
18 | -----
19 | 
20 | * Do not terminate execution of the script by using `return`, `die()`, `exit()`, `__halt_compiler()` or similar
21 | * All code lines shall be executed on runtime
22 | 
23 | How to play?
24 | ------------
25 | 
26 | * try to find a solution for one snippet
27 | * open a PR with your solution
28 | * I will reveal my solutions later on the evening
29 | 


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/trick-1.php:
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 1 | <?php
 2 | 
 3 | /* Insert Magic Code Here */
 4 | 
 5 | // NO CHANGES ALLOWED BELOW
 6 | 
 7 | var_dump(true === false);
 8 | 
 9 | /*
10 |  * Magic output:
11 |  *
12 |  * bool(true)
13 |  */
14 | 


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/trick-2.php:
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 1 | <?php
 2 | 
 3 | /* Insert Magic Code Here */
 4 | 
 5 | // NO CHANGES ALLOWED BELOW
 6 | 
 7 | var_dump(count($array), array_sum($array));
 8 | 
 9 | $array[0] = 1;
10 | $array[1] = 2;
11 | $array[2] = 3;
12 | 
13 | var_dump(count($array), array_sum($array));
14 | 
15 | /*
16 |  * Magic output:
17 |  *
18 |  * int(3)
19 |  * int(0)
20 |  * int(3)
21 |  * int(9)
22 |  */
23 | 


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/trick-3.php:
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 1 | <?php
 2 | 
 3 | /*
 4 |  * Insert Magic Code Here
 5 |  *
 6 |  */
 7 | 
 8 | // NO CHANGES ALLOWED BELOW
 9 | eval($$$$var);
10 | 
11 | /*
12 |  * Magic output:
13 |  *
14 |  * Hello World
15 |  */
16 | 


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/trick-4.php:
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 1 | <?php
 2 | 
 3 | /*
 4 |  *
 5 |  * Insert Magic Code Here
 6 |  *
 7 |  *
 8 |  *
 9 |  *
10 |  *
11 |  *
12 |  */
13 | 
14 | // NO CHANGES ALLOWED BELOW
15 | 
16 | $var = 'Hello!';
17 | echo $var;
18 | 
19 | /*
20 |  * Magic output:
21 |  *
22 |  * World!
23 |  */
24 | 


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/trick-5.php:
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 1 | <?php
 2 | 
 3 | /* Insert Magic Code Here */
 4 | 
 5 | // NO CHANGES ALLOWED BELOW
 6 | 
 7 | for ($i = 0; $i <= count($data); $i++) {
 8 |     $data++;
 9 | }
10 | 
11 | echo $data;
12 | 
13 | /*
14 |  * Magic output:
15 |  *
16 |  * Hello
17 |  */
18 | 


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/trick-6.php:
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 1 | <?php
 2 | 
 3 | /*
 4 |  *
 5 |  * Insert Magic Code Here
 6 |  *
 7 |  *
 8 |  */
 9 | 
10 | // NO CHANGES ALLOWED BELOW
11 | 
12 | echo 'Hello';
13 | echo 'World';
14 | 
15 | /*
16 |  * Magic output:
17 |  *
18 |  * Hello PHP World
19 |  */
20 | 


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/trick-7.php:
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 1 | <?php
 2 | 
 3 | /*
 4 |  * Insert Magic Code Here
 5 |  */
 6 | 
 7 | // NO CHANGES ALLOWED BELOW
 8 | 
 9 | echo 'Foobar';
10 | echo PHP_EOL;
11 | echo 'Hello World';
12 | 
13 | /*
14 |  * Magic output:
15 |  *
16 |  * dlroW olleH
17 |  * rabooF
18 |  */
19 | 


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