mb_substr

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

mb_substrGet part of string

Descrierea

mb_substr ( string $string , int $start , int|null $length = null , string|null $encoding = null ) : string

Performs a multi-byte safe substr() operation based on number of characters. Position is counted from the beginning of string. First character's position is 0. Second character position is 1, and so on.

Parametri

string

The string to extract the substring from.

start

If start is non-negative, the returned string will start at the start'th position in string, counting from zero. For instance, in the string 'abcdef', the character at position 0 is 'a', the character at position 2 is 'c', and so forth.

If start is negative, the returned string will start at the start'th character from the end of string.

length

Maximum number of characters to use from string. If omitted or NULL is passed, extract all characters to the end of the string.

encoding

Parametrul encoding reprezintă codificarea caracterelor. Dacă el este omis, va fi utilizată valoarea internă a codificării caracterelor.

Valorile întoarse

mb_substr() returns the portion of string specified by the start and length parameters.

Istoricul schimbărilor

Versiune Descriere
8.0.0 encoding is nullable now.

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