wp-admin/includes/class-wp-filesystem-direct.php:364Moves a file or directory.
$sourcestring$destinationstring$overwritebooloptionalfalsebool public function move( $source, $destination, $overwrite = false ) { if ( ! $overwrite && $this->exists( $destination ) ) { return false; } if ( $overwrite && $this->exists( $destination ) && ! $this->delete( $destination, true ) ) { // Can't overwrite if the destination couldn't be deleted. return false; } // Try using rename first. if that fails (for example, source is read only) try copy. if ( @rename( $source, $destination ) ) { return true; } // Backward compatibility: Only fall back to `::copy()` for single files. if ( $this->is_file( $source ) && $this->copy( $source, $destination, $overwrite ) && $this->exists( $destination ) ) { $this->delete( $source ); return true; } else { return false; } }Introduced in 2.5.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-admin/includes/class-wp-filesystem-direct.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.