php man page for grapheme_stripos

GRAPHEME_STRIPOS(3)							 1						       GRAPHEME_STRIPOS(3)

grapheme_stripos - Find position (in grapheme units) of first occurrence of a case-insensitive string

       Procedural style

SYNOPSIS
       int grapheme_stripos (string  $haystack, string	$needle, [int  $offset])

DESCRIPTION
	Find position (in grapheme units) of first occurrence of a case-insensitive string

PARAMETERS
	      o $haystack
		- The string to look in. Must be valid UTF-8.

	      o $needle
		- The string to look for. Must be valid UTF-8.

	      o $offset
		-  The	optional  $offset parameter allows you to specify where in haystack to start searching as an offset in grapheme units (not
		bytes or characters). The position returned is still relative to the beginning of haystack regardless of the value of $offset.

RETURN VALUES
	Returns the position as an integer. If needle is not found, grapheme_stripos() will return boolean FALSE.

EXAMPLES
       Example #1

	      grapheme_stripos(3) example

	      <?php

	      $char_a_ring_nfd = "axCCx8A";  // 'LATIN SMALL LETTER A WITH RING ABOVE' (U+00E5) normalization form "D"
	      $char_o_diaeresis_nfd = "oxCCx88"; // 'LATIN SMALL LETTER O WITH DIAERESIS' (U+00F6) normalization form "D"
	      $char_O_diaeresis_nfd = "OxCCx88"; // 'LATIN CAPITAL LETTER O WITH DIAERESIS' (U+00D6) normalization form "D"

	      print grapheme_stripos( $char_a_ring_nfd . $char_a_ring_nfd . $char_o_diaeresis_nfd, $char_O_diaeresis_nfd);

	      ?>

       The above example will output:

       2

SEE ALSO
       grapheme_stristr(3),  grapheme_strpos(3),  grapheme_strripos(3),  grapheme_strrpos(3),  grapheme_strstr(3),   Unicode  Text   Segmentation:
       Grapheme Cluster Boundaries .

PHP Documentation Group 												       GRAPHEME_STRIPOS(3)