<?php /** * @brief This class contain functions for the database management * */ class dbm { /** * @brief Return a list of database processes * * @return array * 'list' => List of processes, separated in their different states * 'amount' => Number of concurrent database processes */ public static function processlist() { $r = q("SHOW PROCESSLIST"); $s = array(); $processes = 0; $states = array(); foreach ($r AS $process) { $state = trim($process["State"]); // Filter out all non blocking processes if (!in_array($state, array("", "init", "statistics", "updating"))) { ++$states[$state]; ++$processes; } } $statelist = ""; foreach ($states AS $state => $usage) { if ($statelist != "") $statelist .= ", "; $statelist .= $state.": ".$usage; } return(array("list" => $statelist, "amount" => $processes)); } /** * Checks if $array is a filled array with at least one entry. * * @param $array mixed A filled array with at least one entry * @return Whether $array is a filled array */ public static function is_result($array) { // It could be a return value from an update statement if (is_bool($array)) { return $array; } return (is_array($array) && count($array) > 0); } /** * @brief Callback function for "esc_array" * * @param mixed $value Array value * @param string $key Array key * @param boolean $add_quotation add quotation marks for string values */ private static function esc_array_callback(&$value, $key, $add_quotation) { if (!$add_quotation) { if (is_bool($value)) { $value = ($value ? '1' : '0'); } else { $value = dbesc($value); } return; } if (is_bool($value)) { $value = ($value ? 'true' : 'false'); } elseif (is_float($value) OR is_integer($value)) { $value = (string)$value; } else { $value = "'".dbesc($value)."'"; } } /** * @brief Escapes a whole array * * @param mixed $arr Array with values to be escaped * @param boolean $add_quotation add quotation marks for string values */ public static function esc_array(&$arr, $add_quotation = false) { array_walk($arr, 'self::esc_array_callback', $add_quotation); } /** * Checks Converts any date string into a SQL compatible date string * * @param string $date a date string in any format * @return string SQL style date string */ public static function date($date = 'now') { $timestamp = strtotime($date); // Don't allow lower date strings as '0001-01-01 00:00:00' if ($timestamp < -62135596800) { $timestamp = -62135596800; } return date('Y-m-d H:i:s', $timestamp); } } ?>