mb_strstr
(PHP 5 >= 5.2.0)
mb_strstr — Finds first occurrence of a string within another
说明
string mb_strstr
( string $haystack
, string $needle
[, bool $part
[, string $encoding
]] )
mb_strstr() finds the first occurrence of
needle
in haystack
and returns the portion of haystack
.
If needle
is not found, it returns FALSE.
参数
-
haystack
-
The string from which to get the first occurrence
of needle
-
needle
-
The string to find in haystack
-
part
-
Determines which portion of haystack
this function returns.
If set to TRUE, it returns all of haystack
from the beginning to the first occurrence of needle
.
If set to FALSE, it returns all of haystack
from the first occurrence of needle
to the end,
Default value is FALSE.
-
encoding
-
Character encoding name to use.
If it is omitted, internal character encoding is used.
返回值
Returns the portion of haystack
,
or FALSE if needle
is not found.