The join() function is alias of implode(). It returns string from the elements of an array.
Syntax
join(separator, arr)
Parameters
separator − It specifies what to put between the array elements. The default is ""
arr − Array to join to a string
Return
The join() function returns a string from elements of an array.
Example
The following is an example −
<?php
$arr = array('This','is','Demo','Text!');
echo join("$",$arr);
?>Output
This$is$Demo$text!
Example
The following is an example −
<?php
$myarr = array('This','is','Demo','Text!');
echo join("-",$myarr);
echo join("#",$myarr);
?>Output
This-is-Demo-Text!This#is#Demo#Text!