(PHP 5 >= 5.2.0, PHP 7, PHP 8)
mb_strrchr — Finds the last occurrence of a character in a string within another
$haystack,$needle,$before_needle = false,$encoding = null
mb_strrchr() finds the last occurrence of
needle in haystack
and returns the portion of haystack.
If needle is not found, it returns false.
haystack
The string from which to get the last occurrence
of needle
needle
The string to find in haystack
before_needle
Determines which portion of haystack
this function returns.
If set to true, it returns all of haystack
from the beginning to the last occurrence of needle.
If set to false, it returns all of haystack
from the last occurrence of needle to the end,
encodingCharacter encoding name to use. If it is omitted, internal character encoding is used.
Returns the portion of haystack.
or false if needle is not found.
| Version | Description |
|---|---|
| 8.0.0 |
needle now accepts an empty string.
|
| 8.0.0 |
encoding is nullable now.
|
needle: /
string: o/a/i
if before_needle is 1 then needle is excluded: "o/a"
if before_needle is false then needle is included: "/i"
as code:
$str="o/a/i";
$cs="/";
echo "if before_needle == 1 then needle is excluded"."\n";
$str="o/a/i";
$cs="/";
echo mb_strrchr ($str,$cs,1)."\n";
echo "if before_needle == false then needle is included"."\n";
$str="o/a/i";
$cs="/";
echo mb_strrchr ($str,$cs,0)."\n";