mb_strstr — Finds first occurrence of a string within another
查找字符串在另一个字符串里的首次出现
Description
string mb_strstr (
string $haystack ,
string $needle [,
bool $before_needle = false [,
string $encoding =mb_internal_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.
//mb_strstr() 查找了 needle 在 haystack 中首次的出现并返回 haystack 的一部分。 如果 needle 没有找到,它将返回 FALSE。 Parameters
haystack
The string from which to get the first occurrence of needle
要获取 needle 首次出现的字符串。
needle
The string to find in haystack
在 haystack 中查找这个字符串。
before_needle
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 (excluding needle). If set to FALSE, it returns all of haystack from the first occurrence of needle to the end (including needle).