Skinning a cat (Or how many ways to output "Hello World!")

[benanamen]

We all know in PHP there are many ways to come up with the same exact result. Just for fun, lets see how many ways you can come up with to output the standard Hello World!. I did this on another forum awhile back and there are many. I will start off with the two most basic ways;

 

 

echo "Hello, World!";

 

print "Hello, World!";

Edited October 12, 2015 by benanamen

[scootstah]

Moving to misc.

 

This could get fun.

[Psycho]

 

foreach(array(72,101,108,108,111,44,32,87,111,114,108,100,33) as $l) { echo chr($l); }

[ignace]

file_put_contents('php://output', 'Hello, World!');

[ignace]

$tmp = tmpfile();

fwrite($tmp, 'Hello, World!');

readfile(stream_get_meta_data($tmp)['uri']);

fclose($tmp);

Edited October 12, 2015 by ignace

[benanamen]

echo str_replace("JimL","World","Hello JimL!");

[benanamen]

echo strrev("!dlroW olleH");

[benanamen]

 echo str_rot13("Uryyb Jbeyq!");

[benanamen]

 echo strtr("Happy Coder!","apyCder","eloWrld");

[benanamen]

define("CONSTANT", "Hello world.");
 echo CONSTANT;

[benanamen]

$helloworld = 'Hello World!';
 printf('%s', $helloworld);

[benanamen]

 $helloworld = 'Hello World!';

 $helloworld = sprintf('%s', $helloworld);

 echo $helloworld;

[benanamen]

 $hex = '48 65 6c 6c 6f 20 57 6f 72 6c 64';
 foreach (explode(' ', $hex) as $bit) {
   echo chr(hexdec($bit));
 }

[benanamen]

$test = "Hello World!";

 var_export($test);

[benanamen]

echo base64_decode('SGVsbG8gV29ybGQ=');

[benanamen]

echo hex2bin("48656c6c6f20776f726c6421");

[benanamen]

foreach (range('d', 'w') as $v) {
  $a[] = $v;
 }
 echo ucwords("$a[4]$a[1]$a[8]$a[8]$a[11] $a[19]$a[11]$a[14]$a[8]$a[0]!");

[benanamen]

echo <<<EOT
 Hello World!

EOT;

[benanamen]

 foreach (explode(' ', '72 101 108 108 111 32 87 111 114 108 100') as $bit) {
   echo chr($bit);

[benanamen]

$a = range('d', 'w');

 echo ucwords("$a[4]$a[1]$a[8]$a[8]$a[11] $a[19]$a[11]$a[14]$a[8]$a[0]!");

[benanamen]

 $b=('010010000110010101101100011011000110111100100000010101110110111101110010011011000110010000100001');
     $split = str_split($b, 8);
 $txt = '';
     for($i = 0, $l = count($split); $i < $l; $i++) {
         $txt .= chr(bindec($split[$i]));
     }
     echo $txt;

[benanamen]

$_="\x70\162\151\x6e\164\x5f\162";$__="\145\170\x65\x63";$___="\x65\143\150\x6f";$____="\110\x65\154\x6c\x6f\040\127\x6f\x72\x6c\144\047";
 $_($__("$___ '$____"));

[Psycho]

This code grabs the text from this forum post. Sort of a recursive implementation.

 

$url = 'http://forums.phpfreaks.com/topic/298555-skinning-a-cat-or-how-many-ways-to-output-hello-world/';
$content = file_get_contents($url);
$output = preg_match("#Or how many ways to output ([^\)]*)#", $content, $match);
echo str_replace('"', '', $match[1]);

[Psycho]

You'll have to wait for this one. Shuffle really isn't 'random' - it took 245,760 iterations to get the value (every time) on my machine.

$letters = array('H','e','l','l','o',',',' ','W','o','r','l','d','!');
$string = '';
 
while($string != 'Hello, World!') {
    shuffle($letters);
    $string = implode('', $letters); 
}
echo $string;

Edited October 12, 2015 by Psycho

[scootstah]

<?php


$string = '';


$expected = 'Hello, World!';


$biggestChar = 0;


for ($i = 0; $i < strlen($expected); $i++) {

    $biggestChar = max($biggestChar, ord($expected[$i]));

}


while ($string != $expected) {

    $string = '';


    for ($i = 0; $i < strlen($expected); $i++) {

        $char = mt_rand(1, $biggestChar);

        $string .= chr($char);

    }

}


echo $string;

I've been running this for about 30 minutes now with $expected = 'Hello' and it hasn't finished yet.