   #PHP Manual String functions str_ireplace str_repeat

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                                    str_pad

   (PHP 4 >= 4.0.1)
   str_pad --  Pad a string to a certain length with another string

Description

   string str_pad ( string input, int pad_length [, string pad_string [,
   int pad_type]])

   This functions returns the input string padded on the left, the right,
   or both sides to the specified padding length. If the optional
   argument pad_string is not supplied, the input is padded with spaces,
   otherwise it is padded with characters from pad_string up to the
   limit.

   Optional argument pad_type can be STR_PAD_RIGHT, STR_PAD_LEFT, or
   STR_PAD_BOTH. If pad_type is not specified it is assumed to be
   STR_PAD_RIGHT.

   If the value of pad_length is negative or less than the length of the
   input string, no padding takes place.

   Example 1. str_pad() example
   <?php
   $input = "Alien";
   echo str_pad($input, 10);                      // produces
   "Alien     "
   echo str_pad($input, 10, "-=", STR_PAD_LEFT);  // produces
   "-=-=-Alien"
   echo str_pad($input, 10, "_", STR_PAD_BOTH);   // produces
   "__Alien___"
   echo str_pad($input, 6 , "___");               // produces "Alien_"
   ?>

     Note: The pad_string may be truncated if the required number of
     padding characters can't be evenly divided by the pad_string's
     length.
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