PHP-CLi, The Flip Side – coin flipper

Below is a simple CLi coin flip I created to help me decide on what to do for lunch.. Don’t forget to change the mode of the file:

$ chmod +x flipcoin

Usage:

$ ./flipcoin # Flips 3 times by default
$ ./flipcoin 1234 # Flips 1234 times
#!/usr/bin/php
<?php
/*
Determine the number of flips.
This assumes you won't be putting in values <=0 
*/
$lim = (array_key_exists(1,$argv)) ? $argv[1] : 3;
 
/*
Set counters, $heads, $tails and $c(ount)
*/
$heads=$tails=$c=0;
for($i=0;$i<$lim;$i++) {
        $c++;
        $int = rand(1,1000);
/*
If $int modulo 2 leaves a remainder, call heads;
else call tails
*/
        if ( $int % 2 ) { echo '!'; $heads++; }
        else { echo '.'; $tails++; }
        if( ($c % 50) == 0 ) { echo "\n"; }
}
/*
Echo the winner, if there was one
*/
echo "\nAfter {$lim} flips: {$heads} Heads(!) and {$tails} Tails(.)\n"
.( ($heads > $tails) ? 'Heads' : ( ($tails == $heads) ? 'Nobody' : 'Tails' ) )
." wins.\n";
 
/* Check for ties, and break them with one last flip  */
if($tails == $heads) {
$int = rand(1,1000);
echo "\n".'Single Tie Breaker Flip:  ';
if ( $int % 2 ) { echo 'Heads Wins.'; }
else { echo 'Tails Wins'; }
echo "\n";
}
exit(0);
?>

It’s nothing crazy, but it is fun to watch 100,000,000 coins being flipped..

After 100000000 flips: 50005803 Heads(!) and 49994197 Tails(.)
Heads wins.

Enjoy!

Author: Mike on February 2, 2014
Category: PHP
Tags: , ,

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