Using WordPress ‘download_url()’ PHP function
Downloads a URL to a local temporary file using the WordPress HTTP API.
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Using WordPress ‘deslash()’ PHP function
Learn about the WordPress `deslash()` function, which removes unnecessary backslashes from strings, in this informative article
Using WordPress ‘delete_option()’ PHP function
Removes option by name. Prevents removal of protected WordPress options.
Using WordPress ‘dashboard_browser_nag_class()’ PHP function
Adds an additional class to the browser nag if the current version is insecure.