WordPress tips on using two PHP functions when debugging front-end pages

Function esc_js() (filter Html embedded JS)
Parameters

$text

(string) (required) The string to be filtered.

Default value: None

Return value

(String) Returns the filtered string.

Example

<input type="text" value="<&#63;php echo esc_attr( $instance['input_text'] ); &#63;>"   name="email" />

More

This function is located at: wp-includes/formatting.php

nocache_headers() (disable browser caching)
nocache_headers() is used to send a header header information to tell the browser to prohibit Cache the current page, generally used during Ajax requests to prevent errors.

Usage

nocache_headers();

Attributes

This function has no attributes.

Return value

This function has no return value.

Example

function Bing_add_ajax(){
  nocache_headers();
  echo true;
  die;
}
add_action( 'template_redirect', 'Bing_add_ajax' );

Others

This function is located at: wp-includes/functions.php

The above introduces two tips for using PHP functions when debugging front-end pages in WordPress, including the relevant content. I hope it will be helpful to friends who are interested in PHP tutorials.