Backend Development 2 min read

PHP mb_strpos Function: Find Position of a Substring in a Multibyte String

The article explains PHP's mb_strpos function, detailing its multibyte‑safe search for a substring, the parameters haystack, needle, offset, and encoding, and the return value indicating the first occurrence position or FALSE if not found.

Laravel Tech Community
Laravel Tech Community
Laravel Tech Community
PHP mb_strpos Function: Find Position of a Substring in a Multibyte String

The mb_strpos function in PHP searches for the first occurrence of a substring within another string, operating safely on multibyte characters.

It returns the numeric position of the needle in the haystack, starting from zero, or FALSE if the needle is not found.

Parameters:

haystack : the string to be searched.

needle : the substring to locate; unlike strpos , numeric values are treated as strings.

offset (optional): the starting position for the search, default is 0.

encoding (optional): character encoding to use; defaults to the internal encoding.

Example signature:

int mb_strpos(string $haystack, string $needle, int $offset = 0, string $encoding = mb_internal_encoding())
BackendphpMultibytemb_strposstring-search
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