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grapheme_strrpos

(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0)

grapheme_strrpos — Find position (in grapheme units) of last occurrence of a string

Description

Procedural style

代码语言:javascript
复制
int grapheme_strrpos ( string $haystack , string $needle [, int $offset = 0 ] )

Find position (in grapheme units) of last occurrence of a string

Parameters

haystack

The string to look in. Must be valid UTF-8.

needle

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

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_strrpos() will return boolean FALSE.

Examples

Example #1 grapheme_strrpos() example

代码语言:javascript
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<?php
$char_a_ring_nfd?=?"a\xCC\x8A";??//?'LATIN?SMALL?LETTER?A?WITH?RING?ABOVE'?(U+00E5)?normalization?form?"D"
$char_o_diaeresis_nfd?=?"o\xCC\x88";?//?'LATIN?SMALL?LETTER?O?WITH?DIAERESIS'?(U+00F6)?normalization?form?"D"

print?grapheme_strrpos(?$char_a_ring_nfd?.?$char_o_diaeresis_nfd?.?$char_o_diaeresis_nfd,?$char_o_diaeresis_nfd);
?>

The above example will output:

代码语言:javascript
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2

See Also

  • grapheme_stripos() - Find position (in grapheme units) of first occurrence of a case-insensitive string
  • grapheme_stristr() - Returns part of haystack string from the first occurrence of case-insensitive needle to the end of haystack.
  • grapheme_strpos() - Find position (in grapheme units) of first occurrence of a string
  • grapheme_strripos() - Find position (in grapheme units) of last occurrence of a case-insensitive string
  • grapheme_strstr() - Returns part of haystack string from the first occurrence of needle to the end of haystack.

← grapheme_strripos

grapheme_strstr →

代码语言:txt
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 ? 1997–2017 The PHP Documentation Group

Licensed under the Creative Commons Attribution License v3.0 or later.

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