misc/strings.php

   1 <?php
   2
   3 /** Splits up a string by a space
   4  * (chr 32)
   5  *
   6  * Syntax:
   7  * split($string)
   8  *
   9  * Returns:
  10  * array $tokens
  11  */
  12 function split($str, $delimiter = " ") : Array
  13 {
  14         return explode($delimiter,$str);
  15 }
  16
  17 /**
  18  *
  19  * @param mixed $array
  20  * @param mixed $delimiter
  21  * @return string
  22  */
  23 function glue($array, $delimiter = " ")
  24 {
  25         $string = "";
  26         foreach($array as $str)
  27         {
  28                 if (!$str)
  29                         continue;
  30                 $string .= $str.$delimiter;
  31         }
  32         return trim($string,$delimiter);
  33 }
  34
  35 /**
  36  * Gets the relative path of the filename
  37  * @param mixed $filename
  38  * @return string
  39  */
  40 function get_relative_path($filename)
  41 {
  42     $relativepath = split($filename, "/");
  43     foreach($relativepath as &$tok)
  44     {
  45         $isFinal = ($tok == "html") ? 1 : 0;
  46         $tok = NULL;
  47         if ($isFinal)
  48             break;
  49     }
  50     $relativepath = glue($relativepath,"/");
  51     return $relativepath;
  52 }
  53
  54 /**
  55  * Returns a `nick` if the string was in the syntax:
  56  * nick!ident@host
  57  * @param mixed $str
  58  * @return mixed
  59  */
  60 function show_nick_only($str)
  61 {
  62         $x = strpos($str, "!");
  63         if ($x !== false)
  64                 $str = substr($str, 0, $x);
  65         return $str;
  66 }
  67
  68
  69 function how_long_ago($timestamp)
  70 {
  71         $now = time();
  72         $diff = $now - strtotime($timestamp);
  73         $units = array(
  74                 31536000 => 'year',
  75                 2592000 => 'month',
  76                 604800 => 'week',
  77                 86400 => 'day',
  78                 3600 => 'hour',
  79                 60 => 'minute',
  80                 1 => 'second'
  81         );
  82
  83         foreach ($units as $unit => $text) {
  84                 if ($diff < $unit) continue;
  85                 $numberOfUnits = floor($diff / $unit);
  86                 return $numberOfUnits.' '.$text.(($numberOfUnits>1)?'s':'').' ago';
  87         }
  88 }