<?php
/*!
* Medoo database framework
* http://medoo.in
* Version 0.9.6
*
* Copyright 2014, Angel Lai
* Released under the MIT license
*/
class medoo
{
protected $database_type = ‘mysql‘;
// For MySQL, MariaDB, MSSQL, Sybase, PostgreSQL, Oracle
protected $server = ‘localhost‘;
protected $username = ‘username‘;
protected $password = ‘password‘;
// For SQLite
protected $database_file = ‘‘;
// Optional
protected $port = 3306;
protected $charset = ‘utf8‘;
protected $database_name = ‘‘;
protected $option = array();
// Variable
protected $queryString;
public function __construct($options = null)
{
try {
$commands = array();
if (is_string($options) && !empty($options))
{
if (strtolower($this->database_type) == ‘sqlite‘)
{
$this->database_file = $options;
}
else
{
$this->database_name = $options;
}
}
elseif (is_array($options))
{
foreach ($options as $option => $value)
{
$this->$option = $value;
}
}
if (
isset($this->port) &&
is_int($this->port * 1)
)
{
$port = $this->port;
}
$set_charset = "SET NAMES ‘" . $this->charset . "‘";
$type = strtolower($this->database_type);
$is_port = isset($port);
switch ($type)
{
case ‘mariadb‘:
$type = ‘mysql‘;
case ‘mysql‘:
// Make MySQL using standard quoted identifier
$commands[] = ‘SET SQL_MODE=ANSI_QUOTES‘;
case ‘pgsql‘:
$dsn = $type . ‘:host=‘ . $this->server . ($is_port ? ‘;port=‘ . $port : ‘‘) . ‘;dbname=‘ . $this->database_name;
$commands[] = $set_charset;
break;
case ‘sybase‘:
$dsn = ‘dblib:host=‘ . $this->server . ($is_port ? ‘:‘ . $port : ‘‘) . ‘;dbname=‘ . $this->database_name;
$commands[] = $set_charset;
break;
case ‘oracle‘:
$dsn = ‘oci:host=‘ . $this->server . ($is_port ? ‘;port=‘ . $port : ‘‘) . ‘;dbname=‘ . $this->database_name . ‘;charset=‘ . $this->charset;
break;
case ‘mssql‘:
$dsn = strpos(PHP_OS, ‘WIN‘) !== false ?
‘sqlsrv:server=‘ . $this->server . ($is_port ? ‘,‘ . $port : ‘‘) . ‘;database=‘ . $this->database_name :
‘dblib:host=‘ . $this->server . ($is_port ? ‘:‘ . $port : ‘‘) . ‘;dbname=‘ . $this->database_name;
// Keep MSSQL QUOTED_IDENTIFIER is ON for standard quoting
$commands[] = ‘SET QUOTED_IDENTIFIER ON‘;
$commands[] = $set_charset;
break;
case ‘sqlite‘:
$dsn = $type . ‘:‘ . $this->database_file;
$this->username = null;
$this->password = null;
break;
}
$this->pdo = new PDO(
$dsn,
$this->username,
$this->password,
$this->option
);
foreach ($commands as $value)
{
$this->pdo->exec($value);
}
}
catch (PDOException $e) {
throw new Exception($e->getMessage());
}
}
public function query($query)
{
$this->queryString = $query;
return $this->pdo->query($query);
}
public function exec($query)
{
$this->queryString = $query;
return $this->pdo->exec($query);
}
public function quote($string)
{
return $this->pdo->quote($string);
}
protected function column_quote($string)
{
return ‘`‘ . str_replace(‘.‘, ‘`.`‘, preg_replace(‘/(^#|\(JSON\))/‘, ‘‘, $string)) . ‘`‘;
}
protected function column_push($columns)
{
if ($columns == ‘*‘)
{
return $columns;
}
if (is_string($columns))
{
$columns = array($columns);
}
$stack = array();
foreach ($columns as $key => $value)
{
preg_match(‘/([a-zA-Z0-9_\-\.]*)\s*\(([a-zA-Z0-9_\-]*)\)/i‘, $value, $match);
if (isset($match[1], $match[2]))
{
array_push($stack, $this->column_quote( $match[1] ) . ‘ AS ‘ . $this->column_quote( $match[2] ));
}
else
{
array_push($stack, $this->column_quote( $value ));
}
}
return implode($stack, ‘,‘);
}
protected function array_quote($array)
{
$temp = array();
foreach ($array as $value)
{
$temp[] = is_int($value) ? $value : $this->pdo->quote($value);
}
return implode($temp, ‘,‘);
}
protected function inner_conjunct($data, $conjunctor, $outer_conjunctor)
{
$haystack = array();
foreach ($data as $value)
{
$haystack[] = ‘(‘ . $this->data_implode($value, $conjunctor) . ‘)‘;
}
return implode($outer_conjunctor . ‘ ‘, $haystack);
}
protected function fn_quote($column, $string)
{
return (strpos($column, ‘#‘) === 0 && preg_match(‘/^[A-Z0-9\_]*\([^)]*\)$/‘, $string)) ?
$string :
$this->quote($string);
}
protected function data_implode($data, $conjunctor, $outer_conjunctor = null)
{
$wheres = array();
foreach ($data as $key => $value)
{
$type = gettype($value);
if (
preg_match("/^(AND|OR)\s*#?/i", $key, $relation_match) &&
$type == ‘array‘
)
{
$wheres[] = 0 !== count(array_diff_key($value, array_keys(array_keys($value)))) ?
‘(‘ . $this->data_implode($value, ‘ ‘ . $relation_match[1]) . ‘)‘ :
‘(‘ . $this->inner_conjunct($value, ‘ ‘ . $relation_match[1], $conjunctor) . ‘)‘;
}
else
{
preg_match(‘/(#?)([\w\.]+)(\[(\>|\>\=|\<|\<\=|\!|\<\>|\>\<)\])?/i‘, $key, $match);
$column = $this->column_quote($match[2]);
if (isset($match[4]))
{
if ($match[4] == ‘‘)
{
$wheres[] = $column . ‘ ‘ . $match[4] . ‘= ‘ . $this->quote($value);
}
elseif ($match[4] == ‘!‘)
{
switch ($type)
{
case ‘NULL‘:
$wheres[] = $column . ‘ IS NOT NULL‘;
break;
case ‘array‘:
$wheres[] = $column . ‘ NOT IN (‘ . $this->array_quote($value) . ‘)‘;
break;
case ‘integer‘:
case ‘double‘:
$wheres[] = $column . ‘ != ‘ . $value;
break;
case ‘boolean‘:
$wheres[] = $column . ‘ != ‘ . ($value ? ‘1‘ : ‘0‘);
break;
case ‘string‘:
$wheres[] = $column . ‘ != ‘ . $this->fn_quote($key, $value);
break;
}
}
else
{
if ($match[4] == ‘<>‘ || $match[4] == ‘><‘)
{
if ($type == ‘array‘)
{
if ($match[4] == ‘><‘)
{
$column .= ‘ NOT‘;
}
if (is_numeric($value[0]) && is_numeric($value[1]))
{
$wheres[] = ‘(‘ . $column . ‘ BETWEEN ‘ . $value[0] . ‘ AND ‘ . $value[1] . ‘)‘;
}
else
{
$wheres[] = ‘(‘ . $column . ‘ BETWEEN ‘ . $this->quote($value[0]) . ‘ AND ‘ . $this->quote($value[1]) . ‘)‘;
}
}
}
else
{
if (is_numeric($value))
{
$wheres[] = $column . ‘ ‘ . $match[4] . ‘ ‘ . $value;
}
else
{
$datetime = strtotime($value);
if ($datetime)
{
$wheres[] = $column . ‘ ‘ . $match[4] . ‘ ‘ . $this->quote(date(‘Y-m-d H:i:s‘, $datetime));
}
}
}
}
}
else
{
if (is_int($key))
{
$wheres[] = $this->quote($value);
}
else
{
switch ($type)
{
case ‘NULL‘:
$wheres[] = $column . ‘ IS NULL‘;
break;
case ‘array‘:
$wheres[] = $column . ‘ IN (‘ . $this->array_quote($value) . ‘)‘;
break;
case ‘integer‘:
case ‘double‘:
$wheres[] = $column . ‘ = ‘ . $value;
break;
case ‘boolean‘:
$wheres[] = $column . ‘ = ‘ . ($value ? ‘1‘ : ‘0‘);
break;
case ‘string‘:
$wheres[] = $column . ‘ = ‘ . $this->fn_quote($key, $value);
break;
}
}
}
}
}
return implode($conjunctor . ‘ ‘, $wheres);
}
protected function where_clause($where)
{
$where_clause = ‘‘;
if (is_array($where))
{
$where_keys = array_keys($where);
$where_AND = preg_grep("/^AND\s*#?$/i", $where_keys);
$where_OR = preg_grep("/^OR\s*#?$/i", $where_keys);
$single_condition = array_diff_key($where, array_flip(
explode(‘ ‘, ‘AND OR GROUP ORDER HAVING LIMIT LIKE MATCH‘)
));
if ($single_condition != array())
{
$where_clause = ‘ WHERE ‘ . $this->data_implode($single_condition, ‘‘);
}
if (!empty($where_AND))
{
$value = array_values($where_AND);
$where_clause = ‘ WHERE ‘ . $this->data_implode($where[ $value[0] ], ‘ AND‘);
}
if (!empty($where_OR))
{
$value = array_values($where_OR);
$where_clause = ‘ WHERE ‘ . $this->data_implode($where[ $value[0] ], ‘ OR‘);
}
if (isset($where[‘LIKE‘]))
{
$like_query = $where[‘LIKE‘];
if (is_array($like_query))
{
$is_OR = isset($like_query[‘OR‘]);
$clause_wrap = array();
if ($is_OR || isset($like_query[‘AND‘]))
{
$connector = $is_OR ? ‘OR‘ : ‘AND‘;
$like_query = $is_OR ? $like_query[‘OR‘] : $like_query[‘AND‘];
}
else
{
$connector = ‘AND‘;
}
foreach ($like_query as $column => $keyword)
{
$keyword = is_array($keyword) ? $keyword : array($keyword);
foreach ($keyword as $key)
{
preg_match(‘/(%?)([a-zA-Z0-9_\-\.]*)(%?)((\[!\])?)/‘, $column, $column_match);
if ($column_match[1] == ‘‘ && $column_match[3] == ‘‘)
{
$column_match[1] = ‘%‘;
$column_match[3] = ‘%‘;
}
$clause_wrap[] =
$this->lumn_maquotbspt;lumn_match[2]) .
spt;lumn_match[4] != ‘‘ ? ‘ NOT‘ : ‘‘) . ‘ LIKE ‘ .
$this->quotbspt;lumn_match[1] . $key . $t;lumn_match[3]);
}
}
$where_clause .= ($where_clause != ‘‘ ? ‘ AND ‘ : ‘ WHERE ‘) . ‘(‘ . implode($clause_wrap, ‘ ‘ . $t;nnector . ‘ ‘) . ‘)‘;
}
}
if (isset($where[‘MATCH‘]))
{
$matchaqusp; = $where[‘MATCH‘]N; i:nbsp;  1;nbsp; nbsp;nbsp;p;  &nbnbsp;&s&nbause  &nbbspp;&n&nbnbsp; if&nb;if&nb;if&nb;if&nb;if (isset($where[‘MATCH‘]))
; bsp; &nb; p;&nb&nb &nb; $where_clause .= ($where_clause&nbclausesp;&nclause(`&nbclause_clausestr_replacesp;!.p;!use !`.`&nbuse&nbs ?&n &nbnbsp;&s&nbause&nbs&nb`use&nbs`&nb)($where_clause&nb`($whereAGAINST$wheresp;!$where_clausep; &nb &nbbspp;&n&nbnbclause_clause&nbimplode($clause_wrap, ‘ ‘ . $t;nnector . ‘ ‘) . ‘)‘;
}
&n&nbs  &nbGROUP&nbnbsp; if (isset($where[‘MATCH‘]))
p bsp; &nb; &&nbnbsp;&GROUPnbsp;&BYnbsp;&&nbnbsp;&_clausep; &nnbsp;&;&np;&nb &nbGROUP&nbnbode($clause_wrap, ‘ ‘ . $t;nnector . ‘ }
&n&nbs  &nbORDEsp; if (isset($where[‘MATCH‘]))
prsort &&nb/(^ &\s*(DESC|ASC))?bsp; $matchaqusp; = $where[‘MATCH‘]N; i:nbsp; &nbORDEsp; if&nb;if&nb;if&nb;if&nb;if (isset($where[‘MATCH‘]))
H‘]N;&np;(isset($where[‘MATCH‘]))
bs  &nbORDEsp;&nsp;bclause;nbsp;nbspp;(isset($where[‘MATCH‘]))
bspi:nbsp; &nbORDEsp;&nsp;bp;(isset($where[‘MATCH‘]))
bp;(isset($where[‘MATCH‘]))
sp;(isset($where[‘MATCH‘]))
; bsp; &nb; &&nbnbsp;&ORDEsnbsp;&BYnbsp;&FIELDsp;!$where_clausep; &nnbsp;&;&np;&nb &nbORDEs&nb][0;bclause_clause&nbuse&nbs&nbse&nbs_clausep; &ni:nbs;&np;&nb &nbORDEs&nb][p;bclause_clause&nbimplode($clause_wrap, ‘ ‘ . $t;nnector . ‘ ‘) .
时间： 2024-08-23 22:47:39
修改了medoo文件，将SQL语句双引号改为反引号。
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