   #PHP Manual Regular Expression Functions (POSIX Extended) ereg_replace
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                                     ereg

   (PHP 3, PHP 4 )
   ereg -- Regular expression match

Description

   bool ereg ( string pattern, string string [, array regs])

     Note: preg_match(), which uses a Perl-compatible regular expression
     syntax, is often a faster alternative to ereg().

   Searches a string for matches to the regular expression given in
   pattern in a case-sensitive way.

   If matches are found for parenthesized substrings of pattern and the
   function is called with the third argument regs, the matches will be
   stored in the elements of the array regs. $regs[1] will contain the
   substring which starts at the first left parenthesis; $regs[2] will
   contain the substring starting at the second, and so on. $regs[0] will
   contain a copy of the complete string matched.

     Note: Up to (and including) PHP 4.1.0 $regs will be filled with
     exactly ten elements, even though more or fewer than ten
     parenthesized substrings may actually have matched. This has no
     effect on ereg()'s ability to match more substrings. If no matches
     are found, $regs will not be altered by ereg().

   Returns TRUE if a match for pattern was found in string, or FALSE if
   no matches were found or an error occurred.

   The following code snippet takes a date in ISO format (YYYY-MM-DD) and
   prints it in DD.MM.YYYY format:

   Example 1. ereg() example
   <?php
   if (ereg ("([0-9]{4})-([0-9]{1,2})-([0-9]{1,2})", $date, $regs)) {
       echo "$regs[3].$regs[2].$regs[1]";
   } else {
       echo "Invalid date format: $date";
   }
   ?>

   See also eregi(), ereg_replace(), eregi_replace(), preg_match(),
   strpos(), and strstr().
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