Create A New Theme File From WordPress Admin Without FTP

Suppose you want to create any custom template for your WordPress website then you always need to create a new theme file but think, if you don't have FTP access then what will you do. I've been stuck in this situation many times and after searching I got a solution.

This solution is nothing more than a function, but you can create any file. I have applied this solution in three ways. So here I will mention all of them.

Through any existing file: Here we will use header.php. Now follow the below steps:

1. Go to Appearance -> editor.

2. Navigate to header.php.

3. Look for this tag </head> in the file.

4. Add the below function before this tag.

<?php touch('wp-content/themes/theme-folder/new-file-name.php'); ?>

5. Update the file.

6. Visit the website to run this code. It will create a new file in your theme folder.

7. Now go back to the header.php and remove this code.

Note: Add your own theme's folder and file name where I have marked red.

Via theme's functions.php: It is an another way to create a new theme file. The difference is that you don't need to visit the website and to remove the code. Simply paste the below code in functions.php of your theme.

add_action( 'admin_menu', 'register_my_custom_menu_page' );

function register_my_custom_menu_page(){
    add_menu_page( 'custom menu title', 'New File', 'manage_options', 'newfilepage', 'create_new_filepage', plugins_url( 'Create-New-File/images/new-file-btn.png' ), 6 );
}


function create_new_filepage(){

echo '<style>
.new-form{
width: 50%;
margin: 0 auto;
margin-top:30%;
}
</style>';

if ( isset( $_POST['submit'] ) ) {
touch(get_template_directory().'/'.$_POST['name'] );
}

echo '<div class="new-form">';
echo '<h1>Enter the name</h1>';
echo '<h3>Your theme is '.wp_get_theme().'</h3>';
echo '<form action="' . esc_url( $_SERVER['REQUEST_URI'] ) . '" method="post"><input type="text" name="name" class="regular-text"><input type="submit" name="submit" value="submit" class="button button-primary">';
echo '</div>';

}

What will this code do? As you are seeing I have used register_my_custom_menu_page function and linked it with admin_menu hook to create a menu item and second create_new_filepage will create a page contains input box. This box will use to create a new theme file. When you enter the file name and submit it, the touch will execute and create a file with the given name.

From plugin: I have converted  this code in the form of plugin. You don't need to code anything, just download and install. It will give you all the functionality to create a new theme file in your active theme folder.

Hopefully, this tricky way will help you to accomplish your goal.