functions/strings.php

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