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                                    stripos

   (PHP 5 CVS only)
   stripos --  Find position of first occurrence of a case-insensitive
   string

Description

   int stripos ( string haystack, string needle [, int offset])

   Returns the numeric position of the first occurrence of needle in the
   haystack string. Unlike strpos(), stripos() is case-insensitive.

   Note that the needle may be a string of one or more characters.

   If needle is not found, stripos() will return boolean FALSE.

   Warning

   This function may return Boolean FALSE, but may also return a
   non-Boolean value which evaluates to FALSE, such as 0 or "". Please
   read the section on Booleans for more information. Use the ===
   operator for testing the return value of this function.

   Example 1. stripos() examples
   <?php
   $findme    = 'a';
   $mystring1 = 'xyz';
   $mystring2 = 'ABC';
   $pos1 = stripos($mystring1, $findme);
   $pos2 = stripos($mystring2, $findme);
   // Nope, 'a' is certainly not in 'xyz'
   if ($pos1 === false) {
       echo "The string '$findme' was not found in the string
   '$mystring1'";
   }
   // Note our use of ===.  Simply == would not work as expected
   // because the position of 'a' is the 0th (first) character.
   if ($pos2 !== false) {
       echo "We found '$findme' in '$mystring2' at position $pos2";
   }
   ?>

   If needle is not a string, it is converted to an integer and applied
   as the ordinal value of a character.

   The optional offset parameter allows you to specify which character in
   haystack to start searching. The position returned is still relative
   to the the beginning of haystack.

   See also strpos(), strrpos(), strrchr(), substr(), stristr(),
   strstr(), strripos() and str_ireplace().
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