Introduction to the usage of chunk_split() function in php

Definition and usage chunk_split function splits a string into a series of smaller parts.

Grammar chunk_split(string,length,end)

Parameter Description string required. Specifies the string to be split. length is optional. A number defining the length of the string block. end is optional. A string value that defines what is placed after each string block.

Tips and Notes Note: This function does not change the original string.

Example 1, separate each character and add ".":

<?php
$str = "Hello world!";
echo chunk_split($str,1,".");
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?>

Output: H.e.l.l.o. .w.o.r.l.d.!.

Example 2, split the string once after six characters and add "...":

<?php
$str = "Hello world!";
echo chunk_split($str,6,"...");
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?>

Output: Hello...world!...