<div>
<div class="content wysiwyg-content">
$str=&quot;p4A2oD0+MGqos7VcDD0NPddXi+iZ3G2WVn5s1Ms1Tder/9RWhLKRdju+zCpt19uklrCUmh2CRFSJ2B0wpt1yG+6bQdu/V5Y61nOTdhl9TIVv4//vYff/uK&quot;; 
 
how to make output: 
 
$out=&quot; 
p4A2oD0+MGqos7VcDD0NPddXi+iZ3G2WVn5s1M 
s1Tder/9RWhLKRdju+zCpt19uklrCUmh2CRFSJ2B0 
wpt1yG+6bQdu/V5Y61nOTdhl9TIVv4//vYff/uK&quot;;
</div>
</div>

$str="p4A2oD0+MGqos7VcDD0NPddXi+iZ3G2WVn5s1Ms1Tder/9RWhLKRdju+zCpt19uklrCUmh2CRFSJ2B0wpt1yG+6bQdu/V5Y61nOTdhl9TIVv4//vYff/uK";

how to make output:

$out="
p4A2oD0+MGqos7VcDD0NPddXi+iZ3G2WVn5s1M
s1Tder/9RWhLKRdju+zCpt19uklrCUmh2CRFSJ2B0
wpt1yG+6bQdu/V5Y61nOTdhl9TIVv4//vYff/uK";

how to insert new line every certain lenght

PHP is a widely-used server-side scripting language especially suited for web development, powering tens of millions of sites from Facebook to personal WordPress blogs. PHP is often paired with the MySQL relational database, but includes support for most other mainstream databases. By utilizing different Server APIs, PHP can work on many different web servers as a server-side scripting language.