Order website or plugin development for WordPress, website development on the Laravel, Symfony, or Yii2 framework…
To remove, use the following code
$result = preg_replace('/\s+/', ' ',$text);The first parameter of the function is "\s". It matches any "whitespace" character: a space (" "), tab (t), newline (n), or carriage return (r).
Next comes the "+", which means one or more matches.
Sometimes there are cases when, in custom post types (created via the `register_post_type()` function), or even in default post types like post or page, we need to disable (remove) the date filter dropdown. This dropdown shows the month and year when posts were created on our site.
Searching the official documentation didn't yield much, so I had to dig into the code and find the necessary filter. I discovered the `disable_months_dropdown` filter, which takes two parameters — the display state of the dropdown and the post type.
Example of using the filter:
add_filter('disable_months_dropdown', function($bool, $post_type) {
if($post_type == 'type_order')
{
return true;
}
return $bool;
}, 1, 2);where:
$bool — whether to display the date dropdown (default is false, meaning the filter is disabled and the dropdown will be shown)
$post_type — the current post type
Note that you can also get the current post type using the `get_current_screen()` function and its `post_type` property. That is:
get_current_screen() -> post_type
And I have a feeling that a similar method could be used to disable the category filter as well (needs to be tested).
While working on one of the WP projects, I needed to add some JS code. Normally, for such tasks, I use separate script files. However, in this case, the code was minimal, so I decided to place it directly into the HTML "body" of the document.
To do this, use the following PHP code:
add_action('wp_enqueue_scripts', function(){
if(!wp_script_is( 'jquery', 'done' ))
{
wp_enqueue_script( 'jquery' );
}
wp_add_inline_script( 'jquery-migrate', 'alert("Hello")' );
});Here's what we are doing:
It seems like a fairly trivial task, and such a function should be built into PHP’s core — but unfortunately, it’s not. So we have to find our own solutions for implementing this functionality. One such solution for removing an array element by its value is shown below:
if(($delete_key = array_search($search_value, $my_array)) !== false)
{
unset($my_array[$delete_key]);
}You could say it’s just two lines — and the functionality is ready.
Since there is no such built-in function in PHP, I had to write my own implementation:
function get_seconds_to_midnight()
{
$left_day_hh = 23 - intval(date('H'));
$left_day_mm = 59 - intval(date('i'));
$left_day_ss = 60 - intval(date('s'));
return 3600 * $left_day_hh + 60 * $left_day_mm + $left_day_ss;
}