mb_stristr
(PHP 5 >= 5.2.0, PHP 7, PHP 8)
mb_stristr — Finds first occurrence of a string within another, case insensitive
Beschreibung
string
$haystack
,string
$needle
,bool
$before_needle
= false
,?string
$encoding
= null
): string|false
mb_stristr() finds the first occurrence of
needle
in haystack
and returns the portion of haystack
.
Unlike mb_strstr(),
mb_stristr() is case-insensitive.
If needle
is not found, it returns false
.
Parameter-Liste
-
haystack
-
The string from which to get the first occurrence of
needle
-
needle
-
The string to find in
haystack
-
before_needle
-
Determines which portion of
haystack
this function returns. If set totrue
, it returns all ofhaystack
from the beginning to the first occurrence ofneedle
(excluding needle). If set tofalse
, it returns all ofhaystack
from the first occurrence ofneedle
to the end (including needle). -
encoding
-
Character encoding name to use. If it is omitted, internal character encoding is used.
Rückgabewerte
Returns the portion of haystack
,
or false
if needle
is not found.
Changelog
Version | Beschreibung |
---|---|
8.0.0 |
needle akzeptiert nun eine leere Zeichenkette.
|
8.0.0 |
encoding ist nun nullable (akzeptiert den
null -Wert).
|
Siehe auch
- stristr() - Wie strstr, aber unabhängig von Groß- bzw. Kleinschreibung
- strstr() - Findet das erste Vorkommen eines Strings
- mb_strstr() - Finds first occurrence of a string within another