wpdb::print_error( string $str = '' ): void|false

1805	public function print_error( $str = '' ) {1806		global $EZSQL_ERROR;1807 1808		if ( ! $str ) {1809			$str = mysqli_error( $this->dbh );1810		}1811 1812		$EZSQL_ERROR[] = array(1813			'query'     => $this->last_query,1814			'error_str' => $str,1815		);1816 1817		if ( $this->suppress_errors ) {1818			return false;1819		}1820 1821		$caller = $this->get_caller();1822		if ( $caller ) {1823			// Not translated, as this will only appear in the error log.1824			$error_str = sprintf( 'WordPress database error %1$s for query %2$s made by %3$s', $str, $this->last_query, $caller );1825		} else {1826			$error_str = sprintf( 'WordPress database error %1$s for query %2$s', $str, $this->last_query );1827		}1828 1829		error_log( $error_str );1830 1831		// Are we showing errors?1832		if ( ! $this->show_errors ) {1833			return false;1834		}1835 1836		wp_load_translations_early();1837 1838		// If there is an error then take note of it.1839		if ( is_multisite() ) {1840			$msg = sprintf(1841				"%s [%s]\n%s\n",1842				__( 'WordPress database error:' ),1843				$str,1844				$this->last_query1845			);1846 1847			if ( defined( 'ERRORLOGFILE' ) ) {1848				error_log( $msg, 3, ERRORLOGFILE );1849			}1850			if ( defined( 'DIEONDBERROR' ) ) {1851				wp_die( $msg );1852			}1853		} else {1854			$str   = htmlspecialchars( $str, ENT_QUOTES );1855			$query = htmlspecialchars( $this->last_query, ENT_QUOTES );1856 1857			printf(1858				'<div id="error"><p class="wpdberror"><strong>%s</strong> [%s]<br /><code>%s</code></p></div>',1859				__( 'WordPress database error:' ),1860				$str,1861				$query1862			);1863		}1864	}