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# chunk_split

(PHP 3>= 3.0.6, PHP 4 , PHP 5)

chunk_split -- Split a string into smaller chunks

## Description

string chunk_split ( string body [, int chunklen [, string end]])

Can be used to split a string into smaller chunks which is useful for e.g. converting base64_encode() output to match RFC 2045 semantics. It inserts end (defaults to "\r\n") every chunklen characters (defaults to 76). It returns the new string leaving the original string untouched.

示範 1.chunk_split() example
`<?php // format $data using RFC 2045 semantics $new_string = chunk_split(base64_encode($data)); ?>`

See also str_split(), explode(), split(), wordwrap() and RFC 2045.

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