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;
}
?>
mb_strripos
(PHP 5 >= 5.2.0, PHP 7)
mb_strripos — Finds position of last occurrence of a string within another, case insensitive
Opis
mb_strripos
( string
$haystack
, string $needle
[, int $offset = 0
[, string $encoding = mb_internal_encoding()
]] ) : int
mb_strripos() performs multi-byte safe
strripos() operation based on
number of characters. needle position is
counted from the beginning of
haystack. First character's position is
0. Second character position is 1.
Unlike mb_strrpos(),
mb_strripos() is case-insensitive.
Parametry
-
haystack -
The string from which to get the position of the last occurrence of
needle -
needle -
The string to find in
haystack -
offset -
The position in
haystackto start searching -
encoding -
Character encoding name to use. If it is omitted, internal character encoding is used.
Zwracane wartości
Return the numeric position of
the last occurrence of needle in the
haystack string, or FALSE
if needle is not found.
Zobacz też:
- strripos() - Find the position of the last occurrence of a case-insensitive substring in a string
- strrpos() - Znajduje pozycję ostatniego wystąpienia znaku w ciągu znaków
- mb_strrpos() - Find position of last occurrence of a string in a string
add a note
User Contributed Notes 2 notes
easai ¶
13 years ago
ivrokrambler at gmail dot com ¶
6 years ago
<?php
function backStrpos($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)
