mb_strpos

(PHP 4 >= 4.0.6, PHP 5, PHP 7, PHP 8)

mb_strposFind position of first occurrence of string in a string

Beschreibung

mb_strpos(
    string $haystack,
    string $needle,
    int $offset = 0,
    ?string $encoding = null
): int|false

Finds position of the first occurrence of a string in a string.

Performs a multi-byte safe strpos() operation based on number of characters. The first character's position is 0, the second character position is 1, and so on.

Parameter-Liste

haystack

The string being checked.

needle

The string to find in haystack. In contrast with strpos(), numeric values are not applied as the ordinal value of a character.

offset

The search offset. If it is not specified, 0 is used. A negative offset counts from the end of the string.

encoding

Der Parameter encoding legt das Zeichenencoding fest. Wird er nicht übergeben so wird die interne Zeichenkodierung genutzt.

Rückgabewerte

Returns the numeric position of the first occurrence of needle in the haystack string. If needle is not found, it returns false.

Changelog

Version Beschreibung
8.0.0 needle akzeptiert nun eine leere Zeichenkette.
8.0.0 encoding ist nun nullable (akzeptiert den null-Wert).
7.1.0 Support for negative offsets has been added.

Siehe auch

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