Query/common.php

156 lines
3.4 KiB
PHP

<?php
/**
* Query
*
* Free Query Builder / Database Abstraction Layer
*
* @package Query
* @subpackage Core
* @author Timothy J. Warren
* @copyright Copyright (c) 2012 - 2014
* @link https://github.com/aviat4ion/Query
* @license http://philsturgeon.co.uk/code/dbad-license
*/
// --------------------------------------------------------------------------
/**
* Global functions that don't really fit anywhere else
*/
// --------------------------------------------------------------------------
if ( ! function_exists('do_include'))
{
/**
* Bulk directory loading workaround for use
* with array_map and glob
*
* @param string $path
* @return void
*/
function do_include($path)
{
require_once($path);
}
}
// --------------------------------------------------------------------------
if ( ! function_exists('mb_trim'))
{
/**
* Multibyte-safe trim function
*
* @param string $string
* @return string
*/
function mb_trim($string)
{
return preg_replace("/(^\s+)|(\s+$)/us", "", $string);
}
}
// --------------------------------------------------------------------------
/**
* Filter out db rows into one array
*
* @param array $array
* @param mixed $index
* @return array
*/
function db_filter($array, $index)
{
$new_array = array();
foreach($array as $a)
{
$new_array[] = $a[$index];
}
return $new_array;
}
// --------------------------------------------------------------------------
/**
* Create a snake_case string from camelCase
*
* @see http://stackoverflow.com/questions/1993721/how-to-convert-camelcase-to-camel-case
*
* @param string $input
* @return string
*/
function from_camel_case($input) {
preg_match_all('!([A-Z][A-Z0-9]*(?=$|[A-Z][a-z0-9])|[A-Za-z][a-z0-9]+)!', $input, $matches);
$ret = $matches[0];
foreach ($ret as &$match) {
$match = $match == strtoupper($match) ? strtolower($match) : lcfirst($match);
}
return implode('_', $ret);
}
// --------------------------------------------------------------------------
/**
* Zip a set of arrays together on common keys
*
* The $zipper_input array is an array of arrays indexed by their place in the output
* array.
*
* @param array $zipper_input
* @return array
*/
function array_zipper(Array $zipper_input)
{
$output = array();
foreach($zipper_input as $append_key => $values)
{
foreach($values as $index => $value)
{
if ( ! isset($output[$index]))
{
$output[$index] = array();
}
$output[$index][$append_key] = $value;
}
}
return $output;
}
// --------------------------------------------------------------------------
/**
* Connection function
*
* Send an array or object as connection parameters to create a connection. If
* the array or object has an 'alias' parameter, passing that string to this
* function will return that connection. Passing no parameters returns the last
* connection created.
*
* @param string|object|array $params
* @return Query\Query_Builder|null
*/
function Query($params = '')
{
$cmanager = \Query\Connection_Manager::get_instance();
// If you are getting a previously created connection
if (is_scalar($params))
{
return $cmanager->get_connection($params);
}
elseif ( ! is_scalar($params) && ! is_null($params))
{
$params = new ArrayObject($params, ArrayObject::STD_PROP_LIST | ArrayObject::ARRAY_AS_PROPS);
// Otherwise, return a new connection
return $cmanager->connect($params);
}
// @codeCoverageIgnoreStart
}
// @codeCoverageIgnoreEnd
// End of common.php