PHP

How to set email sender address using from address

When sending emails meta-data in the email “header” explains who sent the email. There are two similar, but quite different,...

How to convert \n \r ‘line breaks’ to HTML <br> line breaks

The nl2br PHP function can be used to convert \n \r ‘line breaks’ to HTML <br> line breaks. It will...

How to use a shortcode to display an external file in your posts

The following code shows how to create a shortcode which will load and display an external file. This can be...

Global disable multi-site pingbacks and comments

The following code will disable comments and pingbacks in a WordPress. add_filter( 'pings_open', '__return_false', 10, 2 ); add_filter( 'comments_open', '__return_false',...

What does the @ symbol do in PHP?

If you’ve noticed an @ symbol in some PHP code – you’re likely wondering exactly what it does. The @...

How to add text/plain to HTML emails

By default WordPress will send emails as plain text using the content type “text/plain”. But some plugins, such as Gravity...