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                                    strpos

   (PHP 3, PHP 4 )
   strpos --  Find position of first occurrence of a string

Description

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

   Returns the numeric position of the first occurrence of needle in the
   haystack string. Unlike the strrpos(), this function can take a full
   string as the needle parameter and the entire string will be used.

   If needle is not found, strpos() 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. strpos() examples
   <?php
   $mystring = 'abc';
   $findme   = 'a';
   $pos = strpos($mystring, $findme);
   // Note our use of ===.  Simply == would not work as expected
   // because the position of 'a' was the 0th (first) character.
   if ($pos === false) {
       echo "The string '$findme' was not found in the string
   '$mystring'";
   } else {
       echo "The string '$findme' was found in the string '$mystring'";
       echo " and exists at position $pos";
   }
   ?>

   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 strrpos(), stripos(), strripos(), strrchr(), substr(),
   stristr(), and strstr().
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