Anonymous user
Run-length encoding: Difference between revisions
→{{header|PHP}}: Update since the /e modifier was removed in PHP 7.0, see http://www.php.net/preg_replace Changelog
m (→{{header|C}}: "funciton" -> "function") |
(→{{header|PHP}}: Update since the /e modifier was removed in PHP 7.0, see http://www.php.net/preg_replace Changelog) |
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Line 3,262:
=={{header|PHP}}==
<lang php><?php
function encode($str)
{
return preg_replace_callback('/(.)\1*/', function ($match) {
return strlen($match[0]) . $match[1];
}, $str);
}
function decode($str)
{
return preg_replace_callback('/(\d+)(\D)/', function($match) {
return str_repeat($match[2], $match[1]);
}, $str);
}
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