Multibyte String 函数
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mb_strripos

(PHP 5 >= 5.2.0)

mb_strripos — Finds position of last occurrence of a string within another, case insensitive

说明

int mb_strripos ( string $haystack , string $needle [, int $offset = 0 [, string $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.

参数

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 haystack to start searching

encoding

Character encoding name to use. If it is omitted, internal character encoding is used.

返回值

Return the numeric position of the last occurrence of needle in the haystack string, or FALSE if needle is not found.

参见

Multibyte String 函数
在线手册：中文 英文
PHP手册
PHP手册 - N: Finds position of last occurrence of a string within another, case insensitive

用户评论:

easai (28-May-2010 05:53)

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;
    }
?>