mb_strripos
(PHP 5 >= 5.2.0)
mb_strripos — Finds position of last occurrence of a string within another, case insensitive
Description
$haystack
, string $needle
[, int $offset = 0
[, string $encoding = mb_internal_encoding()
]] )
mb_strripos() performs multi-byte safe
strripos() operation based on
number of characters. needle position is
counted from the beginning of
haystack. First character's position is
0. Second character position is 1.
Unlike mb_strrpos(),
mb_strripos() is case-insensitive.
Parameters
-
haystack -
The string from which to get the position of the last occurrence of
needle -
needle -
The string to find in
haystack -
offset -
The position in
haystackto start searching -
encoding -
Character encoding name to use. If it is omitted, internal character encoding is used.
Return Values
Return the numeric position of
the last occurrence of needle in the
haystack string, or FALSE
if needle is not found.
See Also
- strripos() - Find the position of the last occurrence of a case-insensitive substring in a string
- strrpos() - Find the position of the last occurrence of a substring in a string
- mb_strrpos() - Find position of last occurrence of a string in a string
- PHP Руководство
- Функции по категориям
- Индекс функций
- Справочник функций
- Поддержка языков и кодировок
- Многобайтные строки
- mb_check_encoding
- mb_convert_case
- mb_convert_encoding
- mb_convert_kana
- mb_convert_variables
- mb_decode_mimeheader
- mb_decode_numericentity
- mb_detect_encoding
- mb_detect_order
- mb_encode_mimeheader
- mb_encode_numericentity
- mb_encoding_aliases
- mb_ereg_match
- mb_ereg_replace_callback
- mb_ereg_replace
- mb_ereg_search_getpos
- mb_ereg_search_getregs
- mb_ereg_search_init
- mb_ereg_search_pos
- mb_ereg_search_regs
- mb_ereg_search_setpos
- mb_ereg_search
- mb_ereg
- mb_eregi_replace
- mb_eregi
- mb_get_info
- mb_http_input
- mb_http_output
- mb_internal_encoding
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- mb_parse_str
- mb_preferred_mime_name
- mb_regex_encoding
- mb_regex_set_options
- mb_send_mail
- mb_split
- mb_strcut
- mb_strimwidth
- mb_stripos
- mb_stristr
- mb_strlen
- mb_strpos
- mb_strrchr
- mb_strrichr
- mb_strripos
- mb_strrpos
- mb_strstr
- mb_strtolower
- mb_strtoupper
- mb_strwidth
- mb_substitute_character
- mb_substr_count
- mb_substr
Коментарии
Here are Java like startsWith/endsWith implementations in PHP.
<?php
function startsWith($haystack,$needle)
{
$res=FALSE;
if(mb_strripos($haystack,$needle,0,"utf-8")==0)
$res= TRUE;
return $res;
}
function endsWith($haystack,$needle)
{
$res=FALSE;
$len=mb_strlen($haystack);
$pos=$len-mb_strlen($needle);
if(mb_strripos($haystack,$needle,0,"utf-8")==$pos)
$res= TRUE;
return $res;
}
?>
<?php
function backStrpos($str, $needle, $offset){
$needler = backStr($needle);
$strr = backStr($str);
$offsetr = strlen($str) - 1 - $offset;
$posr = mb_stripos($strr, $needler, $offsetr);
return strlen($str) - 1 - $posr - strlen($needle);
}
function backStr($str){
$str = str_replace(array('<', '>'), array('>', '<'), $str);
return strrev($str);
}
function backStrpos($str, $needle, $offset){
$needler = backStr($needle);
$strr = backStr($str);
$offsetr = strlen($str) - 1 - $offset;
$posr = mb_stripos($strr, $needler, $offsetr);
return strlen($str) - 1 - $posr - strlen($needle);
}
function backStr($str){
$str = str_replace(array('<', '>'), array('>', '<'), $str);
return strrev($str);
}
$test = '<table><TR>TEXT</TR><TR>TEST</TR></table>';
$pos = mb_stripos($test, 'TEST', 0);
var_dump($pos);
var_dump(backStrpos($test, '<tr', $pos));
var_dump(backStrpos($test, '<tr', backStrpos($test, '<tr', $pos)));
------->
int(24)
int(19)
int(6)