functions/strings.php

   1 <?
   2
   3    //*************************************************************************
   4    // Count the number of occurances of $needle are in $haystack.
   5    //*************************************************************************
   6    function countCharInString($haystack, $needle) {
   7       $len = strlen($haystack);
   8       for ($i = 0; $i < $len; $i++) {
   9          if ($haystack[$i] == $needle)
  10             $count++;
  11       }
  12       return $count;
  13    }
  14
  15    //*************************************************************************
  16    // Read from the back of $haystack until $needle is found, or the begining
  17    //    of the $haystack is reached.
  18    //*************************************************************************
  19    function readShortMailboxName($haystack, $needle) {
  20       if (strpos($haystack, $needle)) {
  21          $pos = strrpos($haystack, $needle) + 1;
  22          $data = substr($haystack, $pos, strlen($haystack));
  23       } else {
  24          $data = $haystack;
  25       }
  26       return $data;
  27    }
  28
  29    // Wraps text at $wrap characters
  30    function wordWrap($passed, $wrap) {
  31       $words = explode(" ", trim($passed));
  32       $i = 0;
  33       $line_len = strlen($words[$i])+1;
  34       $line = "";
  35       while ($i < count($words)) {
  36          while ($line_len < $wrap) {
  37             $line = "$line$words[$i]&nbsp;";
  38             $i++;
  39             $line_len = $line_len + strlen($words[$i])+1;
  40          }
  41          $line_len = strlen($words[$i])+1;
  42          if ($line_len < $wrap) {
  43             if ($i < count($words)) // don't <BR> the last line
  44                $line = "$line<BR>";
  45          } else {
  46             $endline = $words[$i];
  47             while ($line_len >= $wrap) {
  48                $bigline = substr($endline, 0, $wrap);
  49                $endline = substr($endline, $wrap, strlen($endline));
  50                $line_len = strlen($endline);
  51                $line = "$line$bigline<BR>";
  52             }
  53             $line = "$line$endline<BR>";
  54             $i++;
  55          }
  56       }
  57       return $line;
  58    }
  59
  60    /** Returns an array of email addresses **/
  61    function parseAddrs($text) {
  62       if (trim($text) == "") {
  63          return;
  64       }
  65       $text = str_replace(" ", "", $text);
  66       $text = str_replace(",", ";", $text);
  67       $array = explode(";", $text);
  68       return $array;
  69    }
  70
  71    /** Returns a line of comma separated email addresses from an array **/
  72    function getLineOfAddrs($array) {
  73       $to_line = "";
  74       for ($i = 0; $i < count($array); $i++) {
  75          if ($to_line)
  76             $to_line = "$to_line, $array[$i]";
  77          else
  78             $to_line = "$array[$i]";
  79       }
  80       return $to_line;
  81    }
  82
  83    /* SquirrelMail version number -- DO NOT CHANGE */
  84    $version = "0.2";
  85 ?>