php man page for grapheme_stristr

GRAPHEME_STRISTR(3)							 1						       GRAPHEME_STRISTR(3)

grapheme_stristr - Returns part of haystack string from the first occurrence of case-insensitive needle to the end of haystack.

       Procedural style

SYNOPSIS
       string grapheme_stristr (string	$haystack, string  $needle, [bool  $before_needle = false])

DESCRIPTION
	Returns part of haystack string starting from and including the first occurrence of case-insensitive needle to the end of haystack.

PARAMETERS
	      o $haystack
		- The input string. Must be valid UTF-8.

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

	      o $before_needle
		- If TRUE, grapheme_strstr() returns the part of the haystack before the first occurrence of the needle (excluding needle).

RETURN VALUES
	Returns the portion of $haystack, or FALSE if $needle is not found.

EXAMPLES
       Example #1

	      grapheme_stristr(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 urlencode(grapheme_stristr( $char_a_ring_nfd . $char_o_diaeresis_nfd . $char_a_ring_nfd, $char_O_diaeresis_nfd));

	      ?>

       The above example will output:

       o%CC%88a%CC%8A

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

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