CodeIgniter v4.5 API

BaseConnection
in package

Application

implements ConnectionInterface

AbstractYes

Interfaces

ConnectionInterface

Properties

$aliasedTables : array<string|int, mixed>
$charset : string
$compress : bool
$connectDuration : float
$connectTime : float
$connID : false|object|resource: Connection ID
$database : string
$dataCache : array<string|int, mixed>: Holds previously looked up data for performance reasons.
$dateFormat : array<string|int, mixed>
$DBCollat : string
$DBDebug : bool
$DBDriver : string
$DBPrefix : string
$DSN : string
$encrypt : array<string|int, mixed>|bool
$escapeChar : array<string|int, mixed>|string: Identifier escape character
$failover : array<string|int, mixed>
$hostname : string
$lastQuery : Query
$likeEscapeChar : string: ESCAPE character
$likeEscapeStr : string: ESCAPE statement string
$password : string
$pConnect : bool
$port : int|string
$pretend : bool
$protectIdentifiers : bool: Protect identifiers flag
$queryClass : string
$reservedIdentifiers : array<string|int, mixed>
$resultID : false|object|resource: Result ID
$strictOn : bool
$subdriver : string
$swapPre : string
$transDepth : int
$transEnabled : bool: Transaction enabled flag
$transFailure : bool
$transStatus : bool
$transStrict : bool: Strict transaction mode flag
$username : string
$aliasedTables : array<string|int, mixed>: Array of table aliases.
$charset : string: Character set
$compress : bool: Compression flag
$connectDuration : float: How long it took to establish connection.
$connectTime : float: Microtime when connection was made
$database : string: Database name
$dateFormat : array<string, string>: Default Date/Time formats
$DBCollat : string: Collation
$DBDebug : bool: Whether to throw Exception or not when an error occurs.
$DBDriver : string: Database driver
$DBPrefix : string: Table prefix
$DSN : string: Data Source Name / Connect string
$encrypt : array<string|int, mixed>|bool: Encryption flag/data
$failover : array<string|int, mixed>: Settings for a failover connection.
$hostname : string: Hostname
$lastQuery : Query: The last query object that was executed on this connection.
$password : string: Password
$pConnect : bool: Persistent connection flag
$port : int|string: Database port
$pregEscapeChar : array<string|int, mixed>: RegExp used to escape identifiers
$pretend : bool: If true, no queries will actually be run against the database.
$queryClass : string: Query Class
$reservedIdentifiers : array<string|int, mixed>: List of reserved identifiers
$strictOn : bool|null: Strict ON flag
$subdriver : string: Sub-driver
$swapPre : string: Swap Prefix
$transDepth : int: Transaction depth level
$transException : bool: Whether to throw exceptions during transaction
$transFailure : bool: Transaction failure flag
$transStatus : bool: Transaction status flag
$username : string: Username

Methods

__construct() : mixed: Saves our connection settings.
__get() : array<string|int, mixed>|bool|float|int|object|resource|string|null: Accessor for properties if they exist.
__isset() : bool: Checker for properties existence.
addTableAlias() : $this: Add a table alias to our list.
affectedRows() : int: Returns the total number of rows affected by this query.
callFunction() : array<string|int, mixed>|bool|float|int|object|resource|string|null: This function enables you to call PHP database functions that are not natively included in CodeIgniter, in a platform independent manner.
close() : void: Close the database connection.
disableForeignKeyChecks() : bool: Disables foreign key checks temporarily.
enableForeignKeyChecks() : bool: Enables foreign key checks temporarily.
error() : array<string, int|string|null>: Returns the last error code and message.
escape() : array<string|int, mixed>|float|int|string: "Smart" Escape String
escapeIdentifier() : string: Escape the SQL Identifier
escapeIdentifiers() : array<string|int, mixed>|string: Escape the SQL Identifiers
escapeLikeString() : array<int, string>|string: Escape LIKE String
escapeString() : array<int, string>|string: Escape String
fieldExists() : bool: Determine if a particular field exists
getConnectDuration() : string: Returns the number of seconds with microseconds that it took to connect to the database.
getConnection() : false|object|resource: Returns the actual connection object. If both a 'read' and 'write' connection has been specified, you can pass either term in to get that connection. If you pass either alias in and only a single connection is present, it must return the sole connection.
getConnectStart() : float|null: Returns the time we started to connect to this database in seconds with microseconds.
getDatabase() : string: Returns the name of the current database being used.
getFieldData() : array<int, stdClass>: Returns an object with field data
getFieldNames() : false|array<int, string>: Fetch Field Names
getForeignKeyData() : array<string, stdClass>: Returns an object with foreign key data
getIndexData() : array<string, stdClass>: Returns an object with key data
getLastQuery() : Query: Returns the last query's statement object.
getPlatform() : string: The name of the platform in use (MySQLi, Postgre, SQLite3, OCI8, etc)
getPrefix() : string: Returns the database prefix.
initialize() : void: Initializes the database connection/settings.
insertID() : int|string: Insert ID
isWriteType() : bool: Determines if the statement is a write-type query or not.
listTables() : false|array<int, string>: Returns an array of table names
newQuery() : BaseBuilder: Returns a new instance of the BaseBuilder class with a cleared FROM clause.
persistentConnect() : false|object|resource: Create a persistent database connection.
prefixTable() : string: Prepends a database prefix if one exists in configuration
prepare() : BasePreparedQuery|null: Creates a prepared statement with the database that can then be used to execute multiple statements against. Within the closure, you would build the query in any normal way, though the Query Builder is the expected manner.
pretend() : $this: Allows the engine to be set into a mode where queries are not actually executed, but they are still generated, timed, etc.
protectIdentifiers() : array<string|int, mixed>|string: Protect Identifiers
query() : BaseResult|bool|Query: Orchestrates a query against the database. Queries must use Database\Statement objects to store the query and build it.
resetDataCache() : $this: Empties our data cache. Especially helpful during testing.
setAliasedTables() : $this: Sets the Table Aliases to use. These are typically collected during use of the Builder, and set here so queries are built correctly.
setPrefix() : string: Set DB Prefix
showLastQuery() : string: Returns a string representation of the last query's statement object.
simpleQuery() : false|object|resource: Performs a basic query against the database. No binding or caching is performed, nor are transactions handled. Simply takes a raw query string and returns the database-specific result id.
table() : BaseBuilder: Returns a non-shared new instance of the query builder for this connection.
tableExists() : bool: Determine if a particular table exists
transBegin() : bool: Begin Transaction
transCommit() : bool: Commit Transaction
transComplete() : bool: Complete Transaction
transException() : $this: If set to true, exceptions are thrown during transactions.
transOff() : void: Disable Transactions
transRollback() : bool: Rollback Transaction
transStart() : bool: Start Transaction
transStatus() : bool: Lets you retrieve the transaction flag to determine if it has failed
transStrict() : $this: Enable/disable Transaction Strict Mode
_close() : void: Platform dependent way method for closing the connection.
_disableForeignKeyChecks() : string: Platform-specific SQL statement to disable foreign key checks.
_enableForeignKeyChecks() : string: Platform-specific SQL statement to enable foreign key checks.
_escapeString() : string: Platform independent string escape.
_fieldData() : array<int, stdClass>: Platform-specific field data information.
_foreignKeyData() : array<string, stdClass>: Platform-specific foreign keys data.
_indexData() : array<string, stdClass>: Platform-specific index data.
_listColumns() : false|string: Generates a platform-specific query string so that the column names can be fetched.
_listTables() : false|string: Generates the SQL for listing tables in a platform-dependent manner.
_transBegin() : bool: Begin Transaction
_transCommit() : bool: Commit Transaction
_transRollback() : bool: Rollback Transaction
execute() : false|object|resource: Executes the query against the database.
foreignKeyDataToObjects() : array<string, stdClass>: Converts array of arrays generated by _foreignKeyData() to array of objects
getDriverFunctionPrefix() : string: Get the prefix of the function to access the DB.
protectDotItem() : string

$aliasedTables read-only


    public
        array<string|int, mixed>
    $aliasedTables

$charset read-only


    public
        string
    $charset

$compress read-only


    public
        bool
    $compress

$connectDuration read-only


    public
        float
    $connectDuration

$connectTime read-only


    public
        float
    $connectTime

$connID

Connection ID


    public
        false|object|resource
    $connID
     = false

$database read-only


    public
        string
    $database

$dataCache

Holds previously looked up data for performance reasons.


    public
        array<string|int, mixed>
    $dataCache
     = []

$dateFormat read-only


    public
        array<string|int, mixed>
    $dateFormat

$DBCollat read-only


    public
        string
    $DBCollat

$DBDebug read-only


    public
        bool
    $DBDebug

$DBDriver read-only


    public
        string
    $DBDriver

$DBPrefix read-only


    public
        string
    $DBPrefix

$DSN read-only


    public
        string
    $DSN

$encrypt read-only


    public
        array<string|int, mixed>|bool
    $encrypt

$escapeChar

Identifier escape character


    public
        array<string|int, mixed>|string
    $escapeChar
     = '"'

$failover read-only


    public
        array<string|int, mixed>
    $failover

$hostname read-only


    public
        string
    $hostname

$lastQuery read-only


    public
        Query
    $lastQuery

$likeEscapeChar

ESCAPE character


    public
        string
    $likeEscapeChar
     = '!'

$likeEscapeStr

ESCAPE statement string


    public
        string
    $likeEscapeStr
     = " ESCAPE '%s' "

$password read-only


    public
        string
    $password

$pConnect read-only


    public
        bool
    $pConnect

$port read-only


    public
        int|string
    $port

$pretend read-only


    public
        bool
    $pretend

$protectIdentifiers

Protect identifiers flag


    public
        bool
    $protectIdentifiers
     = true

$queryClass read-only


    public
        string
    $queryClass

$reservedIdentifiers read-only


    public
        array<string|int, mixed>
    $reservedIdentifiers

$resultID

Result ID


    public
        false|object|resource
    $resultID
     = false

$strictOn read-only


    public
        bool
    $strictOn

$subdriver read-only


    public
        string
    $subdriver

$swapPre read-only


    public
        string
    $swapPre

$transDepth read-only


    public
        int
    $transDepth

$transEnabled

Transaction enabled flag


    public
        bool
    $transEnabled
     = true

$transFailure read-only


    public
        bool
    $transFailure

$transStatus read-only


    public
        bool
    $transStatus

$transStrict

Strict transaction mode flag


    public
        bool
    $transStrict
     = true

$username read-only


    public
        string
    $username

$aliasedTables

Array of table aliases.


    protected
        array<string|int, mixed>
    $aliasedTables
     = []

$charset

Character set


    protected
        string
    $charset
     = ''

This value must be updated by Config\Database if the driver use it.

$compress

Compression flag


    protected
        bool
    $compress
     = false

$connectDuration

How long it took to establish connection.


    protected
        float
    $connectDuration
     = 0.0

$connectTime

Microtime when connection was made


    protected
        float
    $connectTime
     = 0.0

$database

Database name


    protected
        string
    $database

$dateFormat

Default Date/Time formats


    protected
        array<string, string>
    $dateFormat
     = ['date' => 'Y-m-d', 'datetime' => 'Y-m-d H:i:s', 'datetime-ms' => 'Y-m-d H:i:s.v', 'datetime-us' => 'Y-m-d H:i:s.u', 'time' => 'H:i:s']

$DBCollat

Collation


    protected
        string
    $DBCollat
     = ''

This value must be updated by Config\Database if the driver use it.

$DBDebug

Whether to throw Exception or not when an error occurs.


    protected
        bool
    $DBDebug
     = true

$DBDriver

Database driver


    protected
        string
    $DBDriver
     = 'MySQLi'

$DBPrefix

Table prefix


    protected
        string
    $DBPrefix
     = ''

$DSN

Data Source Name / Connect string


    protected
        string
    $DSN

$encrypt

Encryption flag/data


    protected
        array<string|int, mixed>|bool
    $encrypt
     = false

$failover

Settings for a failover connection.


    protected
        array<string|int, mixed>
    $failover
     = []

$hostname

Hostname


    protected
        string
    $hostname

$lastQuery

The last query object that was executed on this connection.


    protected
        Query
    $lastQuery

$password

Password


    protected
        string
    $password

$pConnect

Persistent connection flag


    protected
        bool
    $pConnect
     = false

$port

Database port


    protected
        int|string
    $port
     = ''

$pregEscapeChar

RegExp used to escape identifiers


    protected
        array<string|int, mixed>
    $pregEscapeChar
     = []

$pretend

If true, no queries will actually be run against the database.


    protected
        bool
    $pretend
     = false

$queryClass

Query Class


    protected
        string
    $queryClass
     = \CodeIgniter\Database\Query::class

$reservedIdentifiers

List of reserved identifiers


    protected
        array<string|int, mixed>
    $reservedIdentifiers
     = ['*']

Identifiers that must NOT be escaped.

$strictOn

Strict ON flag

Will move to MySQLi\Connection.


    protected
        bool|null
    $strictOn

Whether we're running in strict SQL mode.

$subdriver

Sub-driver


    protected
        string
    $subdriver

$swapPre

Swap Prefix


    protected
        string
    $swapPre
     = ''

$transDepth

Transaction depth level


    protected
        int
    $transDepth
     = 0

$transException

Whether to throw exceptions during transaction


    protected
        bool
    $transException
     = false

$transFailure

Transaction failure flag


    protected
        bool
    $transFailure
     = false

Used with transactions to determine if a transaction has failed.

$transStatus

Transaction status flag


    protected
        bool
    $transStatus
     = true

Used with transactions to determine if a rollback should occur.

$username

Username


    protected
        string
    $username

__construct()

Saves our connection settings.


    public
                    __construct(array<string|int, mixed> $params) : mixed

Parameters

$params : array<string|int, mixed>

__get()

Accessor for properties if they exist.


    public
                    __get(string $key) : array<string|int, mixed>|bool|float|int|object|resource|string|null

Parameters

$key : string

Return values

__isset()

Checker for properties existence.


    public
                    __isset(string $key) : bool

Parameters

$key : string

Return values

bool

addTableAlias()

Add a table alias to our list.


    public
                    addTableAlias(string $table) : $this

Parameters

$table : string

Return values

$this

affectedRows()

Returns the total number of rows affected by this query.


    public
    abstract                affectedRows() : int

Return values

int

callFunction()

This function enables you to call PHP database functions that are not natively included in CodeIgniter, in a platform independent manner.


    public
                    callFunction(string $functionName, array<string|int, mixed> ...$params) : array<string|int, mixed>|bool|float|int|object|resource|string|null

Parameters

$functionName : string
$params : array<string|int, mixed>

Return values

close()

Close the database connection.


    public
                    close() : void

disableForeignKeyChecks()

Disables foreign key checks temporarily.


    public
                    disableForeignKeyChecks() : bool

Return values

bool

enableForeignKeyChecks()

Enables foreign key checks temporarily.


    public
                    enableForeignKeyChecks() : bool

Return values

bool

error()

Returns the last error code and message.


    public
    abstract                error() : array<string, int|string|null>

Must return an array with keys 'code' and 'message':

Return values

array<string, int|string|null>

escape()

"Smart" Escape String


    public
                    escape(array<string|int, mixed>|bool|float|int|object|string|null $str) : array<string|int, mixed>|float|int|string

Escapes data based on type. Sets boolean and null types

Parameters

$str : array<string|int, mixed>|bool|float|int|object|string|null

Return values

array<string|int, mixed>|float|int|string

escapeIdentifier()

Escape the SQL Identifier


    public
                    escapeIdentifier(non-empty-string $item) : string

This function escapes single identifier.

Parameters

$item : non-empty-string

Return values

string

escapeIdentifiers()

Escape the SQL Identifiers


    public
                    escapeIdentifiers(array<string|int, mixed>|string $item) : array<string|int, mixed>|string

This function escapes column and table names

Parameters

$item : array<string|int, mixed>|string

Return values

array<string|int, mixed>|string

escapeLikeString()

Escape LIKE String


    public
                    escapeLikeString(array<int, string|Stringable>|string|Stringable $str) : array<int, string>|string

Calls the individual driver for platform specific escaping for LIKE conditions

Parameters

$str : array<int, string|Stringable>|string|Stringable

Return values

array<int, string>|string

escapeString()

Escape String


    public
                    escapeString(array<int, string|Stringable>|string|Stringable $str[, bool $like = false ]) : array<int, string>|string

Parameters

$str : array<int, string|Stringable>|string|Stringable: Input string
$like : bool = false: Whether the string will be used in a LIKE condition

Return values

array<int, string>|string

fieldExists()

Determine if a particular field exists


    public
                    fieldExists(string $fieldName, string $tableName) : bool

Parameters

$fieldName : string
$tableName : string

Return values

bool

getConnectDuration()

Returns the number of seconds with microseconds that it took to connect to the database.


    public
                    getConnectDuration([int $decimals = 6 ]) : string

Used by the Debug Toolbar's timeline.

Parameters

$decimals : int = 6

Return values

string

getConnection()

Returns the actual connection object. If both a 'read' and 'write' connection has been specified, you can pass either term in to get that connection. If you pass either alias in and only a single connection is present, it must return the sole connection.


    public
                    getConnection([string|null $alias = null ]) : false|object|resource

Parameters

$alias : string|null = null

Return values

false|object|resource

getConnectStart()

Returns the time we started to connect to this database in seconds with microseconds.


    public
                    getConnectStart() : float|null

Used by the Debug Toolbar's timeline.

Return values

float|null

getDatabase()

Returns the name of the current database being used.


    public
                    getDatabase() : string

Return values

string

getFieldData()

Returns an object with field data


    public
                    getFieldData(string $table) : array<int, stdClass>

Parameters

$table : string

Return values

array<int, stdClass>

getFieldNames()

Fetch Field Names


    public
                    getFieldNames(string $table) : false|array<int, string>

Parameters

$table : string

Return values

false|array<int, string>

getForeignKeyData()

Returns an object with foreign key data


    public
                    getForeignKeyData(string $table) : array<string, stdClass>

Parameters

$table : string

Return values

array<string, stdClass>

getIndexData()

Returns an object with key data


    public
                    getIndexData(string $table) : array<string, stdClass>

Parameters

$table : string

Return values

array<string, stdClass>

getLastQuery()

Returns the last query's statement object.


    public
                    getLastQuery() : Query

Return values

Query

getPlatform()

The name of the platform in use (MySQLi, Postgre, SQLite3, OCI8, etc)


    public
                    getPlatform() : string

Return values

string

getPrefix()

Returns the database prefix.


    public
                    getPrefix() : string

Return values

string

initialize()

Initializes the database connection/settings.


    public
                    initialize() : void

insertID()

Insert ID


    public
    abstract                insertID() : int|string

Return values

int|string

isWriteType()

Determines if the statement is a write-type query or not.


    public
                    isWriteType(string $sql) : bool

Parameters

$sql : string

Return values

bool

listTables()

Returns an array of table names


    public
                    listTables([bool $constrainByPrefix = false ]) : false|array<int, string>

Parameters

$constrainByPrefix : bool = false

Return values

false|array<int, string>

newQuery()

Returns a new instance of the BaseBuilder class with a cleared FROM clause.


    public
                    newQuery() : BaseBuilder

Return values

BaseBuilder

persistentConnect()

Create a persistent database connection.


    public
                    persistentConnect() : false|object|resource

Return values

false|object|resource

prefixTable()

Prepends a database prefix if one exists in configuration


    public
                    prefixTable([string $table = '' ]) : string

Parameters

$table : string = ''

Return values

string

prepare()

Creates a prepared statement with the database that can then be used to execute multiple statements against. Within the closure, you would build the query in any normal way, though the Query Builder is the expected manner.


    public
                    prepare(callable(BaseConnection): mixed $func[, array<string|int, mixed> $options = [] ]) : BasePreparedQuery|null

Example: $stmt = $db->prepare(function($db) { return $db->table('users') ->where('id', 1) ->get(); })

Parameters

$func : callable(BaseConnection): mixed
$options : array<string|int, mixed> = []

Return values

BasePreparedQuery|null

pretend()

Allows the engine to be set into a mode where queries are not actually executed, but they are still generated, timed, etc.


    public
                    pretend([bool $pretend = true ]) : $this

This is primarily used by the prepared query functionality.

Parameters

$pretend : bool = true

Return values

$this

protectIdentifiers()

Protect Identifiers


    public
                    protectIdentifiers(array<string|int, mixed>|int|string $item[, bool $prefixSingle = false ][, bool $protectIdentifiers = null ][, bool $fieldExists = true ]) : array<string|int, mixed>|string

This function is used extensively by the Query Builder class, and by a couple functions in this class. It takes a column or table name (optionally with an alias) and inserts the table prefix onto it. Some logic is necessary in order to deal with column names that include the path. Consider a query like this:

SELECT hostname.database.table.column AS c FROM hostname.database.table

Or a query with aliasing:

SELECT m.member_id, m.member_name FROM members AS m

Since the column name can include up to four segments (host, DB, table, column) or also have an alias prefix, we need to do a bit of work to figure this out and insert the table prefix (if it exists) in the proper position, and escape only the correct identifiers.

Parameters

$item : array<string|int, mixed>|int|string
$prefixSingle : bool = false: Prefix a table name with no segments?
$protectIdentifiers : bool = null: Protect table or column names?
$fieldExists : bool = true: Supplied $item contains a column name?

Return values

array<string|int, mixed>|string

query()

Orchestrates a query against the database. Queries must use Database\Statement objects to store the query and build it.


    public
                    query(string $sql[, array<string|int, mixed>|string|null $binds = null ][, bool $setEscapeFlags = true ][, string $queryClass = '' ]) : BaseResult|bool|Query

This method works with the cache.

Should automatically handle different connections for read/write queries if needed.

Parameters

$sql : string
$binds : array<string|int, mixed>|string|null = null
$setEscapeFlags : bool = true
$queryClass : string = ''

Return values

BaseResult|bool|Query —

BaseResult when “read” type query, bool when “write” type query, Query when prepared query

resetDataCache()

Empties our data cache. Especially helpful during testing.


    public
                    resetDataCache() : $this

Return values

$this

setAliasedTables()

Sets the Table Aliases to use. These are typically collected during use of the Builder, and set here so queries are built correctly.


    public
                    setAliasedTables(array<string|int, mixed> $aliases) : $this

Parameters

$aliases : array<string|int, mixed>

Return values

$this

setPrefix()

Set DB Prefix


    public
                    setPrefix([string $prefix = '' ]) : string

Set's the DB Prefix to something new without needing to reconnect

Parameters

$prefix : string = '': The prefix

Return values

string

showLastQuery()

Returns a string representation of the last query's statement object.


    public
                    showLastQuery() : string

Return values

string

simpleQuery()

Performs a basic query against the database. No binding or caching is performed, nor are transactions handled. Simply takes a raw query string and returns the database-specific result id.


    public
                    simpleQuery(string $sql) : false|object|resource

Parameters

$sql : string

Return values

false|object|resource

table()

Returns a non-shared new instance of the query builder for this connection.


    public
                    table(array<string|int, mixed>|string $tableName) : BaseBuilder

Parameters

$tableName : array<string|int, mixed>|string

Return values

BaseBuilder

tableExists()

Determine if a particular table exists


    public
                    tableExists(string $tableName[, bool $cached = true ]) : bool

Parameters

$tableName : string
$cached : bool = true: Whether to use data cache

Return values

bool

transBegin()

Begin Transaction


    public
                    transBegin([bool $testMode = false ]) : bool

Parameters

$testMode : bool = false

Return values

bool

transCommit()

Commit Transaction


    public
                    transCommit() : bool

Return values

bool

transComplete()

Complete Transaction


    public
                    transComplete() : bool

Return values

bool

transException()

If set to true, exceptions are thrown during transactions.


    public
                    transException(bool $transException) : $this

Parameters

$transException : bool

Return values

$this

transOff()

Disable Transactions


    public
                    transOff() : void

This permits transactions to be disabled at run-time.

transRollback()

Rollback Transaction


    public
                    transRollback() : bool

Return values

bool

transStart()

Start Transaction


    public
                    transStart([bool $testMode = false ]) : bool

Parameters

$testMode : bool = false

Return values

bool

transStatus()

Lets you retrieve the transaction flag to determine if it has failed


    public
                    transStatus() : bool

Return values

bool

transStrict()

Enable/disable Transaction Strict Mode


    public
                    transStrict([bool $mode = true ]) : $this

When strict mode is enabled, if you are running multiple groups of transactions, if one group fails all subsequent groups will be rolled back.

If strict mode is disabled, each group is treated autonomously, meaning a failure of one group will not affect any others

Parameters

$mode : bool = true: = true

Return values

$this

_close()

Platform dependent way method for closing the connection.


    protected
    abstract                _close() : void

_disableForeignKeyChecks()

Platform-specific SQL statement to disable foreign key checks.


    protected
                    _disableForeignKeyChecks() : string

If this feature is not supported, return empty string.

Return values

string

_enableForeignKeyChecks()

Platform-specific SQL statement to enable foreign key checks.


    protected
                    _enableForeignKeyChecks() : string

If this feature is not supported, return empty string.

Return values

string

_escapeString()

Platform independent string escape.


    protected
                    _escapeString(string $str) : string

Will likely be overridden in child classes.

Parameters

$str : string

Return values

string

_fieldData()

Platform-specific field data information.


    protected
    abstract                _fieldData(string $table) : array<int, stdClass>

Parameters

$table : string

Return values

array<int, stdClass>

_foreignKeyData()

Platform-specific foreign keys data.


    protected
    abstract                _foreignKeyData(string $table) : array<string, stdClass>

Parameters

$table : string

Return values

array<string, stdClass>

_indexData()

Platform-specific index data.


    protected
    abstract                _indexData(string $table) : array<string, stdClass>

Parameters

$table : string

Return values

array<string, stdClass>

_listColumns()

Generates a platform-specific query string so that the column names can be fetched.


    protected
    abstract                _listColumns([string $table = '' ]) : false|string

Parameters

$table : string = ''

Return values

false|string

_listTables()

Generates the SQL for listing tables in a platform-dependent manner.


    protected
    abstract                _listTables([bool $constrainByPrefix = false ][, string|null $tableName = null ]) : false|string

Parameters

$constrainByPrefix : bool = false
$tableName : string|null = null: If $tableName is provided will return only this table if exists.

Return values

false|string

_transBegin()

Begin Transaction


    protected
    abstract                _transBegin() : bool

Return values

bool

_transCommit()

Commit Transaction


    protected
    abstract                _transCommit() : bool

Return values

bool

_transRollback()

Rollback Transaction


    protected
    abstract                _transRollback() : bool

Return values

bool

execute()

Executes the query against the database.


    protected
    abstract                execute(string $sql) : false|object|resource

Parameters

$sql : string

Return values

false|object|resource

foreignKeyDataToObjects()

Converts array of arrays generated by _foreignKeyData() to array of objects


    protected
                    foreignKeyDataToObjects(array<string|int, mixed> $data) : array<string, stdClass>

Parameters

$data : array<string|int, mixed>

Return values

array<string, stdClass> —

array[ {constraint_name} => stdClass[ 'constraint_name' => string, 'table_name' => string, 'column_name' => string[], 'foreign_table_name' => string, 'foreign_column_name' => string[], 'on_delete' => string, 'on_update' => string, 'match' => string ] ]

getDriverFunctionPrefix()

Get the prefix of the function to access the DB.


    protected
                    getDriverFunctionPrefix() : string

Return values

string

protectDotItem()


    private
                    protectDotItem(string $item, string $alias, bool $protectIdentifiers, bool $fieldExists) : string

Parameters

$item : string
$alias : string
$protectIdentifiers : bool
$fieldExists : bool

Return values

string

BaseConnection in package Application implements ConnectionInterface

Tags

Table of Contents

Interfaces

Properties

Methods

Properties

$aliasedTables read-only

$charset read-only

$compress read-only

$connectDuration read-only

$connectTime read-only

$connID

Tags

$database read-only

$dataCache

$dateFormat read-only

$DBCollat read-only

$DBDebug read-only

$DBDriver read-only

$DBPrefix read-only

$DSN read-only

$encrypt read-only

$escapeChar

$failover read-only

$hostname read-only

$lastQuery read-only

$likeEscapeChar

$likeEscapeStr

$password read-only

$pConnect read-only

$port read-only

$pretend read-only

$protectIdentifiers

$queryClass read-only

$reservedIdentifiers read-only

$resultID

Tags

$strictOn read-only

$subdriver read-only

$swapPre read-only

$transDepth read-only

$transEnabled

$transFailure read-only

$transStatus read-only

$transStrict

$username read-only

$aliasedTables

$charset

$compress

$connectDuration

$connectTime

$database

$dateFormat

$DBCollat

$DBDebug

$DBDriver

$DBPrefix

$DSN

$encrypt

$failover

$hostname

$lastQuery

$password

$pConnect

$port

$pregEscapeChar

$pretend

$queryClass

$reservedIdentifiers

$strictOn

$subdriver

Tags

$swapPre

$transDepth

$transException

$transFailure

$transStatus

$username

Methods

BaseConnection
in package

Application

implements ConnectionInterface