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I'm stuck with a question. How far can I go with php with wordpress? If good it's of course not the same as using a server+db and a .php file to script everything you can imagine, but how far can I go with Wordpress?

For example you have your standard while's etc. but then you have inserting, what if I want to insert something like this in a field in wordpress? Would this even be possible or something related to things like substr?

    $firstletter = $row['Name'];
    $firstletter2 = substr($firstletter, 0,1);

    $return .= '<li data letter="'.$firstletter2.'" >';
     }
   return friendly ($firstletter2);
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  • The entire back end of WordPress is written in php. it's not just a templating language.
    – Joel M
    Commented Jan 2, 2020 at 3:30

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You can use everything that is available in PHP, as WordPress is a script depending on PHP.

The only limitations you have are set by your version of PHP, and if you run huge scripts, your server configuration.

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  • Is it maybe possible for you to give me an example or link me anything exampling how to insert data into a custom field/field using wordpress? The simplest thing I can come up with(usual php) is INSERT into ... WHERE ..., I just have no idea how to do this in a Wordpress way. I have a little bit of experience with Wordpress but not to much.
    – David H
    Commented Mar 3, 2014 at 10:51
  • You can use the $wpdb-Class for that.
    – fischi
    Commented Mar 3, 2014 at 11:25

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