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wp_get_plugin_error

Gets the error that was recorded for a paused plugin.

is_plugin_paused

Determines whether a plugin is technically active but was paused while loading.

validate_plugin_requirements

Validates the plugin requirements for WordPress version and PHP version.

activate_plugin

Attempts activation of plugin in a “sandbox” and redirects on success.

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wp_trusted_keys

Filter the valid signing keys used to verify the contents of files.

wp_trusted_keys

Retrieves the list of signing keys trusted by WordPress.

verify_file_signature

Verifies the contents of a file against its ED25519 signature.

wp_signature_softfail

Filters whether Signature Verification failures should be allowed to soft fail.

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wp_signature_url

Filter the URL where the signature for a file is located.

wp_signature_hosts

Filters the list of hosts which should have Signature Verification attempted on.

download_url

Downloads a URL to a local temporary file using the WordPress HTTP API.

site_status_tests

Add or modify which site status tests are run on a site.

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WP_Site_Health

Class for looking up a site’s health based on a user’s WordPress environment.