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The Pdo\Mysql class

(PHP 8 >= 8.4.0)

简介

A PDO subclass representing a connection using the MySQL PDO driver.

This driver supports a dedicated SQL query parser for the MySQL dialect. It can handle the following:

Single and double-quoted literals with both doubling and backslash as escaping mechanisms
Backtick literals with doubling as escaping mechanism
Two-dashes, C-style comments, and Hash-comments.

类摘要

class Pdo\Mysql extends PDO {

/* 继承的常量 */

public const int PDO::PARAM_NULL;

public const int PDO::PARAM_BOOL = 5;

public const int PDO::PARAM_INT = 1;

public const int PDO::PARAM_STR = 2;

public const int PDO::PARAM_LOB = 3;

public const int PDO::PARAM_STMT = 4;

public const int PDO::PARAM_INPUT_OUTPUT;

public const int PDO::PARAM_STR_NATL;

public const int PDO::PARAM_STR_CHAR;

public const int PDO::PARAM_EVT_ALLOC;

public const int PDO::PARAM_EVT_FREE;

public const int PDO::PARAM_EVT_EXEC_PRE;

public const int PDO::PARAM_EVT_EXEC_POST;

public const int PDO::PARAM_EVT_FETCH_PRE;

public const int PDO::PARAM_EVT_FETCH_POST;

public const int PDO::PARAM_EVT_NORMALIZE;

public const int PDO::FETCH_DEFAULT;

public const int PDO::FETCH_LAZY;

public const int PDO::FETCH_ASSOC;

public const int PDO::FETCH_NUM;

public const int PDO::FETCH_BOTH;

public const int PDO::FETCH_OBJ;

public const int PDO::FETCH_BOUND;

public const int PDO::FETCH_COLUMN;

public const int PDO::FETCH_CLASS;

public const int PDO::FETCH_INTO;

public const int PDO::FETCH_FUNC;

public const int PDO::FETCH_GROUP;

public const int PDO::FETCH_UNIQUE;

public const int PDO::FETCH_KEY_PAIR;

public const int PDO::FETCH_CLASSTYPE;

public const int PDO::FETCH_SERIALIZE;

public const int PDO::FETCH_PROPS_LATE;

public const int PDO::FETCH_NAMED;

public const int PDO::ATTR_AUTOCOMMIT;

public const int PDO::ATTR_PREFETCH;

public const int PDO::ATTR_TIMEOUT;

public const int PDO::ATTR_ERRMODE;

public const int PDO::ATTR_SERVER_VERSION;

public const int PDO::ATTR_CLIENT_VERSION;

public const int PDO::ATTR_SERVER_INFO;

public const int PDO::ATTR_CONNECTION_STATUS;

public const int PDO::ATTR_CASE;

public const int PDO::ATTR_CURSOR_NAME;

public const int PDO::ATTR_CURSOR;

public const int PDO::ATTR_ORACLE_NULLS;

public const int PDO::ATTR_PERSISTENT;

public const int PDO::ATTR_STATEMENT_CLASS;

public const int PDO::ATTR_FETCH_TABLE_NAMES;

public const int PDO::ATTR_FETCH_CATALOG_NAMES;

public const int PDO::ATTR_DRIVER_NAME;

public const int PDO::ATTR_STRINGIFY_FETCHES;

public const int PDO::ATTR_MAX_COLUMN_LEN;

public const int PDO::ATTR_EMULATE_PREPARES;

public const int PDO::ATTR_DEFAULT_FETCH_MODE;

public const int PDO::ATTR_DEFAULT_STR_PARAM;

public const int PDO::ERRMODE_SILENT;

public const int PDO::ERRMODE_WARNING;

public const int PDO::ERRMODE_EXCEPTION;

public const int PDO::CASE_NATURAL;

public const int PDO::CASE_LOWER;

public const int PDO::CASE_UPPER;

public const int PDO::NULL_NATURAL;

public const int PDO::NULL_EMPTY_STRING;

public const int PDO::NULL_TO_STRING;

public const string PDO::ERR_NONE;

public const int PDO::FETCH_ORI_NEXT;

public const int PDO::FETCH_ORI_PRIOR;

public const int PDO::FETCH_ORI_FIRST;

public const int PDO::FETCH_ORI_LAST;

public const int PDO::FETCH_ORI_ABS;

public const int PDO::FETCH_ORI_REL;

public const int PDO::CURSOR_FWDONLY;

public const int PDO::CURSOR_SCROLL;

/* 常量 */

public const int ATTR_USE_BUFFERED_QUERY;

public const int ATTR_LOCAL_INFILE;

public const int ATTR_LOCAL_INFILE_DIRECTORY;

public const int ATTR_INIT_COMMAND;

public const int ATTR_MAX_BUFFER_SIZE;

public const int ATTR_READ_DEFAULT_FILE;

public const int ATTR_READ_DEFAULT_GROUP;

public const int ATTR_COMPRESS;

public const int ATTR_DIRECT_QUERY;

public const int ATTR_FOUND_ROWS;

public const int ATTR_IGNORE_SPACE;

public const int ATTR_MULTI_STATEMENTS;

public const int ATTR_SERVER_PUBLIC_KEY;

public const int ATTR_SSL_KEY;

public const int ATTR_SSL_CERT;

public const int ATTR_SSL_CA;

public const int ATTR_SSL_CAPATH;

public const int ATTR_SSL_CIPHER;

public const int ATTR_SSL_VERIFY_SERVER_CERT;

/* 方法 */

public getWarningCount(): int

/* 继承的方法 */

public PDO::__construct(
    string $dsn,
    ?string $username = null,
    #[\SensitiveParameter] ?string $password = null,
    ?array $options = null
)

public PDO::beginTransaction(): bool

public PDO::commit(): bool

public static PDO::connect(
    string $dsn,
    ?string $username = null,
    #[\SensitiveParameter] ?string $password = null,
    ?array $options = null
): static

public PDO::errorCode(): ?string

public PDO::errorInfo(): array

public PDO::exec(string $statement): int|false

public PDO::getAttribute(int $attribute): mixed

public static PDO::getAvailableDrivers(): array

public PDO::inTransaction(): bool

public PDO::lastInsertId(?string $name = null): string|false

public PDO::prepare(string $query, array $options = []): PDOStatement|false

public PDO::query(string $query, ?int $fetchMode = null): PDOStatement|false

public PDO::query(string $query, ?int $fetchMode = PDO::FETCH_COLUMN, int $colno): PDOStatement|false

public PDO::query(
    string $query,
    ?int $fetchMode = PDO::FETCH_CLASS,
    string $classname,
    array $constructorArgs
): PDOStatement|false

public PDO::query(string $query, ?int $fetchMode = PDO::FETCH_INTO, object $object): PDOStatement|false

public PDO::quote(string $string, int $type = PDO::PARAM_STR): string|false

public PDO::rollBack(): bool

public PDO::setAttribute(int $attribute, mixed $value): bool

}

预定义常量

Pdo\Mysql::ATTR_USE_BUFFERED_QUERY: By default all statements are executed in buffered mode. If this attribute is set to false on a Pdo\Mysql object, the MySQL driver will use the unbuffered mode.
示例 #1 Setting MySQL unbuffered mode

<?php $pdo = new Pdo\Mysql("mysql:host=localhost;dbname=world", 'my_user', 'my_password'); $pdo->setAttribute(PDO::MYSQL_ATTR_USE_BUFFERED_QUERY, false); $unbufferedResult = $pdo->query("SELECT Name FROM City"); foreach ($unbufferedResult as $row) { echo $row['Name'] . PHP_EOL; } ?>
Pdo\Mysql::ATTR_LOCAL_INFILE: Enable LOAD LOCAL INFILE.
注意: Can only be used in the driver_options array when constructing a new database handle.
Pdo\Mysql::ATTR_LOCAL_INFILE_DIRECTORY: Allows restricting LOCAL DATA loading to files located in this designated directory.
注意: Can only be used in the driver_options array when constructing a new database handle.
Pdo\Mysql::ATTR_INIT_COMMAND: Command to execute when connecting to the MySQL server. Will automatically be re-executed when reconnecting.
注意: Can only be used in the driver_options array when constructing a new database handle.
Pdo\Mysql::ATTR_READ_DEFAULT_FILE: Read options from the named option file instead of from my.cnf.
注意: This option is not available if mysqlnd is used, because mysqlnd does not read the mysql configuration files.
Pdo\Mysql::ATTR_READ_DEFAULT_GROUP: Read options from the named group from my.cnf or the file specified with Pdo\Mysql::ATTR_READ_DEFAULT_FILE.
注意: This option is not available if mysqlnd is used, because mysqlnd does not read the mysql configuration files.
Pdo\Mysql::ATTR_COMPRESS: Enable network communication compression.
Pdo\Mysql::ATTR_DIRECT_QUERY: 别名 PDO::ATTR_EMULATE_PREPARES.
Pdo\Mysql::ATTR_FOUND_ROWS: Return the number of found (matched) rows, not the number of changed rows.
注意: Can only be used in the driver_options array when constructing a new database handle.
Pdo\Mysql::ATTR_IGNORE_SPACE: Permit spaces after SQL function names. Makes all SQL functions names reserved words.
注意: Can only be used in the driver_options array when constructing a new database handle.
Pdo\Mysql::ATTR_MAX_BUFFER_SIZE: Maximum buffer size. Defaults to 1 MiB.
注意: This constant is not supported when compiled against mysqlnd.
Pdo\Mysql::ATTR_MULTI_STATEMENTS: Disables multi query execution in both PDO::prepare() and PDO::query() when set to false.
注意: Can only be used in the driver_options array when constructing a new database handle.
Pdo\Mysql::ATTR_SERVER_PUBLIC_KEY: RSA public key file used with the SHA-256 based authentication.
注意: Can only be used in the driver_options array when constructing a new database handle.
Pdo\Mysql::ATTR_SSL_KEY: The file path to the SSL key.
注意: Can only be used in the driver_options array when constructing a new database handle.
Pdo\Mysql::ATTR_SSL_CERT: The file path to the SSL certificate.
注意: Can only be used in the driver_options array when constructing a new database handle.
Pdo\Mysql::ATTR_SSL_CA: The file path to the SSL certificate authority.
注意: Can only be used in the driver_options array when constructing a new database handle.
Pdo\Mysql::ATTR_SSL_CAPATH: The file path to the directory that contains the trusted SSL CA certificates, which are stored in PEM format.
注意: Can only be used in the driver_options array when constructing a new database handle.
Pdo\Mysql::ATTR_SSL_CIPHER: A list of one or more permissible ciphers to use for SSL encryption, in a format understood by OpenSSL. For example: DHE-RSA-AES256-SHA:AES128-SHA
注意: Can only be used in the driver_options array when constructing a new database handle.
Pdo\Mysql::ATTR_SSL_VERIFY_SERVER_CERT: Provides a way to disable verification of the server SSL certificate.
注意: This option is available only with mysqlnd.

注意: Can only be used in the driver_options array when constructing a new database handle.

The Pdo\Mysql class

简介

类摘要

预定义常量

目录

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