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mb_strpos

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

mb_strpos — Find position of first occurrence of string in a string

Descrizione

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

Finds position of the first occurrence of needle in the haystack 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.

Elenco dei parametri

haystack

The string from which to get the position of the first occurrence of needle.

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

Il parametro encoding è la codifica dei caratteri. Se è omesso, verrà utilizzata la codifica interna.

Valori restituiti

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

Errori/Eccezioni

Log delle modifiche

Versione Descrizione
8.0.0 needle now accepts an empty string.
8.0.0 encoding is nullable now.
7.1.0 Support for negative offsets has been added.

Vedere anche: