DB
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Class: DB_msql

Source Location: /DB-1.7.14/DB/msql.php

Class Overview

PEAR
   |
   --DB_common
      |
      --DB_msql

The methods PEAR DB uses to interact with PHP's msql extension for interacting with Mini SQL databases


Author(s):

Version:

  • Release: 1.7.14

Copyright:

  • 1997-2007 The PHP Group

Variables

Methods


Inherited Variables

Inherited Methods

Class: DB_common

DB_common::DB_common()
This constructor calls $this->PEAR('DB_Error')
DB_common::affectedRows()
Determines the number of rows affected by a data maniuplation query
DB_common::autoCommit()
Enables or disables automatic commits
DB_common::autoExecute()
Automaticaly generates an insert or update query and call prepare() and execute() with it
DB_common::autoPrepare()
Automaticaly generates an insert or update query and pass it to prepare()
DB_common::buildManipSQL()
Produces an SQL query string for autoPrepare()
DB_common::commit()
Commits the current transaction
DB_common::createSequence()
Creates a new sequence
DB_common::dropSequence()
Deletes a sequence
DB_common::errorCode()
Maps native error codes to DB's portable ones
DB_common::errorMessage()
Maps a DB error code to a textual message
DB_common::errorNative()
Gets the DBMS' native error code produced by the last query
DB_common::escapeSimple()
Escapes a string according to the current DBMS's standards
DB_common::execute()
Executes a DB statement prepared with prepare()
DB_common::executeEmulateQuery()
Emulates executing prepared statements if the DBMS not support them
DB_common::executeMultiple()
Performs several execute() calls on the same statement handle
DB_common::freePrepared()
Frees the internal resources associated with a prepared query
DB_common::getAll()
Fetches all of the rows from a query result
DB_common::getAssoc()
Fetches an entire query result and returns it as an associative array using the first column as the key
DB_common::getCol()
Fetches a single column from a query result and returns it as an indexed array
DB_common::getListOf()
Lists internal database information
DB_common::getOne()
Fetches the first column of the first row from a query result
DB_common::getOption()
Returns the value of an option
DB_common::getRow()
Fetches the first row of data returned from a query result
DB_common::getSequenceName()
Generates the name used inside the database for a sequence
DB_common::getSpecialQuery()
Obtains the query string needed for listing a given type of objects
DB_common::getTables()
Lists the tables in the current database
DB_common::limitQuery()
Generates and executes a LIMIT query
DB_common::modifyLimitQuery()
Adds LIMIT clauses to a query string according to current DBMS standards
DB_common::modifyQuery()
Changes a query string for various DBMS specific reasons
DB_common::nextId()
Returns the next free id in a sequence
DB_common::nextQueryIsManip()
Sets (or unsets) a flag indicating that the next query will be a manipulation query, regardless of the usual DB::isManip() heuristics.
DB_common::numRows()
Determines the number of rows in a query result
DB_common::prepare()
Prepares a query for multiple execution with execute()
DB_common::provides()
Tells whether the present driver supports a given feature
DB_common::query()
Sends a query to the database server
DB_common::quote()
DEPRECATED: Quotes a string so it can be safely used in a query
DB_common::quoteBoolean()
Formats a boolean value for use within a query in a locale-independent manner.
DB_common::quoteFloat()
Formats a float value for use within a query in a locale-independent manner.
DB_common::quoteIdentifier()
Quotes a string so it can be safely used as a table or column name
DB_common::quoteSmart()
Formats input so it can be safely used in a query
DB_common::quoteString()
DEPRECATED: Quotes a string so it can be safely used within string delimiters in a query
DB_common::raiseError()
Communicates an error and invoke error callbacks, etc
DB_common::rollback()
Reverts the current transaction
DB_common::setFetchMode()
Sets the fetch mode that should be used by default for query results
DB_common::setOption()
Sets run-time configuration options for PEAR DB
DB_common::tableInfo()
Returns information about a table or a result set
DB_common::toString()
DEPRECATED: String conversion method
DB_common::_checkManip()
Checks if the given query is a manipulation query. This also takes into account the _next_query_manip flag and sets the _last_query_manip flag (and resets _next_query_manip) according to the result.
DB_common::_convertNullArrayValuesToEmpty()
Converts all null values in an array to empty strings
DB_common::_rtrimArrayValues()
Right-trims all strings in an array
DB_common::__sleep()
Automatically indicates which properties should be saved when PHP's serialize() function is called
DB_common::__toString()
Automatic string conversion for PHP 5
DB_common::__wakeup()
Automatically reconnects to the database when PHP's unserialize() function is called

Class Details

[line 54]
The methods PEAR DB uses to interact with PHP's msql extension for interacting with Mini SQL databases

These methods overload the ones declared in DB_common.

PHP's mSQL extension did weird things with NULL values prior to PHP 4.3.11 and 5.0.4. Make sure your version of PHP meets or exceeds those versions.



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Class Variables

$connection =

[line 104]

The raw database connection created by PHP

Type:   resource


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$dbsyntax =  'msql'

[line 68]

The database syntax variant to be used (db2, access, etc.), if any

Type:   string


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$dsn = array()

[line 110]

The DSN information for connecting to a database

Type:   array


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$errorcode_map = array(
    )

[line 97]

A mapping of native error codes to DB error codes

Type:   array


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$features = array(
        'limit'         => 'emulate',
        'new_link'      => false,
        'numrows'       => true,
        'pconnect'      => true,
        'prepare'       => false,
        'ssl'           => false,
        'transactions'  => false,
    )

[line 83]

The capabilities of this DB implementation

The 'new_link' element contains the PHP version that first provided new_link support for this DBMS. Contains false if it's unsupported.

Meaning of the 'limit' element:

  • 'emulate' = emulate with fetch row by number
  • 'alter' = alter the query
  • false = skip rows


Type:   array


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$phptype =  'msql'

[line 62]

The DB driver type (mysql, oci8, odbc, etc.)

Type:   string


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Method Detail

DB_msql (Constructor)   [line 133]

void DB_msql( )

This constructor calls $this->DB_common()

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affectedRows   [line 416]

int affectedRows( )

Determines the number of rows affected by a data maniuplation query

  1. is returned for queries that don't manipulate data.

  • Return: the number of rows. A DB_Error object on failure.

Overrides DB_common::affectedRows() (Determines the number of rows affected by a data maniuplation query)
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connect   [line 167]

int connect( array $dsn, [bool $persistent = false])

Connect to the database server, log in and open the database

Don't call this method directly. Use DB::connect() instead.

Example of how to connect:

  1.  require_once 'DB.php';
  2.  
  3.  // $dsn = 'msql://hostname/dbname';  // use a TCP connection
  4.  $dsn 'msql:///dbname';             // use a socket
  5.  $options = array(
  6.      'portability' => DB_PORTABILITY_ALL,
  7.  );
  8.  
  9.  $db DB::connect($dsn$options);
  10.  if (PEAR::isError($db)) {
  11.      die($db->getMessage());
  12.  }

  • Return: DB_OK on success. A DB_Error object on failure.

Parameters:

array   $dsn     the data source name
bool   $persistent     should the connection be persistent?

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createSequence   [line 485]

int createSequence( string $seq_name)

Creates a new sequence

Also creates a new table to associate the sequence with. Uses a separate table to ensure portability with other drivers.


Overrides DB_common::createSequence() (Creates a new sequence)

Parameters:

string   $seq_name     name of the new sequence

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disconnect   [line 225]

bool disconnect( )

Disconnects from the database server
  • Return: TRUE on success, FALSE on failure

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dropSequence   [line 510]

int dropSequence( string $seq_name)

Deletes a sequence

Overrides DB_common::dropSequence() (Deletes a sequence)

Parameters:

string   $seq_name     name of the sequence to be deleted

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errorCode   [line 614]

integer errorCode( string $errormsg)

Determines PEAR::DB error code from the database's text error message
  • Return: the error number from a DB_ERROR* constant

Overrides DB_common::errorCode() (Maps native error codes to DB's portable ones)

Parameters:

string   $errormsg     the error message returned from the database

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errorNative   [line 599]

string errorNative( )

Gets the DBMS' native error message produced by the last query
  • Return: the DBMS' error message

Overrides DB_common::errorNative() (Gets the DBMS' native error code produced by the last query)
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escapeSimple   [line 562]

string escapeSimple( string $str)

Escapes a string according to the current DBMS's standards

Overrides DB_common::escapeSimple() (Escapes a string according to the current DBMS's standards)

Parameters:

string   $str     the string to be escaped

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fetchInto   [line 308]

mixed fetchInto( resource $result, &$arr, int $fetchmode, [int $rownum = null], array $arr)

Places a row from the result set into the given array

Formating of the array and the data therein are configurable. See DB_result::fetchInto() for more information.

This method is not meant to be called directly. Use DB_result::fetchInto() instead. It can't be declared "protected" because DB_result is a separate object.

PHP's mSQL extension did weird things with NULL values prior to PHP 4.3.11 and 5.0.4. Make sure your version of PHP meets or exceeds those versions.

  • Return: DB_OK on success, NULL when the end of a result set is reached or on failure
  • See: DB_result::fetchInto()

Parameters:

resource   $result     the query result resource
array   $arr     the referenced array to put the data in
int   $fetchmode     how the resulting array should be indexed
int   $rownum     the row number to fetch (0 = first row)
   &$arr     

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freeResult   [line 351]

bool freeResult( resource $result)

Deletes the result set and frees the memory occupied by the result set

This method is not meant to be called directly. Use DB_result::free() instead. It can't be declared "protected" because DB_result is a separate object.


Parameters:

resource   $result     PHP's query result resource

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getSpecialQuery   [line 797]

array getSpecialQuery( string $type)

Obtain a list of a given type of objects

Overrides DB_common::getSpecialQuery() (Obtains the query string needed for listing a given type of objects)

Parameters:

string   $type     the kind of objects you want to retrieve

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msqlRaiseError   [line 582]

object the msqlRaiseError( [int $errno = null])

Produces a DB_Error object regarding the current problem

Parameters:

int   $errno     if the error is being manually raised pass a DB_ERROR* constant here. If this isn't passed the error information gathered from the DBMS.

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nextId   [line 440]

int nextId( string $seq_name, [boolean $ondemand = true])

Returns the next free id in a sequence

Overrides DB_common::nextId() (Returns the next free id in a sequence)

Parameters:

string   $seq_name     name of the sequence
boolean   $ondemand     when true, the seqence is automatically created if it does not exist

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nextResult   [line 276]

true nextResult( a $result)

Move the internal msql result pointer to the next available result
  • Return: if a result is available otherwise return false
  • Access: public

Parameters:

a   $result     valid fbsql result resource

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numCols   [line 372]

int numCols( resource $result)

Gets the number of columns in a result set

This method is not meant to be called directly. Use DB_result::numCols() instead. It can't be declared "protected" because DB_result is a separate object.


Parameters:

resource   $result     PHP's query result resource

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numRows   [line 397]

int numRows( resource $result)

Gets the number of rows in a result set

This method is not meant to be called directly. Use DB_result::numRows() instead. It can't be declared "protected" because DB_result is a separate object.


Overrides DB_common::numRows() (Determines the number of rows in a query result)

Parameters:

resource   $result     PHP's query result resource

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quoteFloat   [line 545]

string quoteFloat( float $float)

Formats a float value for use within a query in a locale-independent manner.

Overrides DB_common::quoteFloat() (Formats a float value for use within a query in a locale-independent manner.)

Parameters:

float   $float     the float value to be quoted.

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quoteIdentifier   [line 528]

object a quoteIdentifier( string $str)

mSQL does not support delimited identifiers

Overrides DB_common::quoteIdentifier() (Quotes a string so it can be safely used as a table or column name)

Parameters:

string   $str     the identifier name to be quoted

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simpleQuery   [line 244]

mixed simpleQuery( string $query)

Sends a query to the database server
  • Return: + a PHP result resrouce for successful SELECT queries
    • the DB_OK constant for other successful queries
    • a DB_Error object on failure

Parameters:

string   $query     the SQL query string

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tableInfo   [line 705]

array tableInfo( object|string $result, [int $mode = null])

Returns information about a table or a result set
  • Return: an associative array with the information requested. A DB_Error object on failure.
  • See: DB_common::setOption()

Overrides DB_common::tableInfo() (Returns information about a table or a result set)

Parameters:

object|string   $result     DB_result object from a query or a string containing the name of a table. While this also accepts a query result resource identifier, this behavior is deprecated.
int   $mode     a valid tableInfo mode

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Documentation generated on Sat, 27 Aug 2011 14:00:11 +0000 by phpDocumentor 1.4.3. PEAR Logo Copyright © PHP Group 2004.