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# chunk_split

chunk_split -- Split a string into smaller chunks

## Description

`string chunk_split`(string string, 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 every `chunklen` (defaults to 76) chars the string `end` (defaults to "\r\n"). It returns the new string leaving the original string untouched.

Example 1. chunk_split() example
    # format $data using RFC 2045 semantics

    $new_string = chunk_split(base64_encode($data));

This function is significantly faster than ereg_replace().

> Note: This function was added in 3.0.6.

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