PHP - Manual: MySQLi_STMT

2024-11-22

mysqli_stmt::$affected_rows »

« mysqli::$warning_count

MySQLi_STMT类

(PHP 5, PHP 7, PHP 8)

简介

代表一个预编译 SQL 语句。

类摘要

class mysqli_stmt {

/* 属性 */

int|string $affected_rows;

int $errno;

array $error_list;

string $error;

int $field_count;

int|string $insert_id;

int|string $num_rows;

int $param_count;

string $sqlstate;

/* 方法 */

mysqli_stmt_affected_rows(mysqli_stmt $statement): int|string

public attr_get(int $attribute): int

public attr_set(int $attribute, int $value): bool

public bind_param(string $types, mixed &$var, mixed &...$vars): bool

public bind_result(mixed &$var, mixed &...$vars): bool

public close(): bool

public data_seek(int $offset): void

mysqli_stmt_errno(mysqli_stmt $statement): int

mysqli_stmt_error_list(mysqli_stmt $statement): array

mysqli_stmt_error(mysqli_stmt $statement): string

public execute(?array $params = null): bool

public fetch(): ?bool

mysqli_stmt_field_count(mysqli_stmt $statement): int

public free_result(): void

public get_result(): mysqli_result|false

public get_warnings(): mysqli_warning|false

mysqli_stmt_insert_id(mysqli_stmt $statement): int|string

public more_results(): bool

public next_result(): bool

public num_rows(): int|string

mysqli_stmt_param_count(mysqli_stmt $statement): int

public prepare(string $query): bool

public reset(): bool

public result_metadata(): mysqli_result|false

public send_long_data(int $param_num, string $data): bool

mysqli_stmt_sqlstate(mysqli_stmt $statement): string

public store_result(): bool

}

mysqli_stmt::$affected_rows — Returns the total number of rows changed, deleted, inserted, or matched by the last statement executed
mysqli_stmt::attr_get — Used to get the current value of a statement attribute
mysqli_stmt::attr_set — Used to modify the behavior of a prepared statement
mysqli_stmt::bind_param — Binds variables to a prepared statement as parameters
mysqli_stmt::bind_result — Binds variables to a prepared statement for result storage
mysqli_stmt::close — Closes a prepared statement
mysqli_stmt::__construct — Constructs a new mysqli_stmt object
mysqli_stmt::data_seek — Seeks to an arbitrary row in statement result set
mysqli_stmt::$errno — Returns the error code for the most recent statement call
mysqli_stmt::$error_list — Returns a list of errors from the last statement executed
mysqli_stmt::$error — Returns a string description for last statement error
mysqli_stmt::execute — Executes a prepared statement
mysqli_stmt::fetch — Fetch results from a prepared statement into the bound variables
mysqli_stmt::$field_count — Returns the number of columns in the given statement
mysqli_stmt::free_result — Frees stored result memory for the given statement handle
mysqli_stmt::get_result — Gets a result set from a prepared statement as a mysqli_result object
mysqli_stmt::get_warnings — Get result of SHOW WARNINGS
mysqli_stmt::$insert_id — Get the ID generated from the previous INSERT operation
mysqli_stmt::more_results — Check if there are more query results from a multiple query
mysqli_stmt::next_result — Reads the next result from a multiple query
mysqli_stmt::$num_rows — Returns the number of rows fetched from the server
mysqli_stmt::$param_count — Returns the number of parameters for the given statement
mysqli_stmt::prepare — Prepares an SQL statement for execution
mysqli_stmt::reset — Resets a prepared statement
mysqli_stmt::result_metadata — Returns result set metadata from a prepared statement
mysqli_stmt::send_long_data — Send data in blocks
mysqli_stmt::$sqlstate — Returns SQLSTATE error from previous statement operation
mysqli_stmt::store_result — Stores a result set in an internal buffer

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User Contributed Notes 2 notes

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-7

anonunfinder at gmail dot com ¶

8 years ago


<?php
class MySQL
{
    protected $mysql;
    function __construct()
    {
                //Get MySQL config values from config.ini file
        if($config = parse_ini_file("../config.ini"))
        {
            // Obtener los valores del fichero de configuración config.ini
            $ip = $config["ip"];
            $user = $config["usuario"];
            $pass = $config["password"];
            $bd = $config["bd"];
                          
                         //Connection between a database and php
            $this->mysql = new mysqli($ip, $user, $pass, $bd);
        }
    }

    function setResultQuery($query, $param)
    {
        $array = NULL;
        if(!$this->mysql->connect_errno)
        {
            $stmt = $this->setStatement($query, $param);
            try
            {
                if($stmt != NULL)
                {
                    if($stmt->execute())
                    {
                        //Obtener resultados
                        $stmt->store_result();
                        $variables = array();
                        $data = array();
                        $meta = $stmt->result_metadata();
                        while($field = $meta->fetch_field())
                        {
                            $variables[] = &$data[$field->name];
                        }
                        call_user_func_array(array($stmt, 'bind_result'), $variables);
                        $i=0;
                        while($stmt->fetch())
                        {
                                $array[$i] = array();
                                foreach($data as $k=>$v)
                                $array[$i][$k] = $v;
                                $i++;
                        }
                        $stmt->close();
                    }
                }
            }catch(Exception $e){
                $array = FALSE;
            }
        }
        return $array;
    }

    function setStatement($query, $param)
    {
        try
        {
            $stmt = $this->mysql->prepare($query);
            $ref = new ReflectionClass('mysqli_stmt');
            if(count($param) != 0)
            {
                
                $method = $ref->getMethod('bind_param');
                $method->invokeArgs($stmt, $param);
            }
        }catch(Exception $e){
            if($stmt != null)
            {
                $stmt->close();
            }
        }
        return $stmt;
    }

    function setNoResultQuery($query, $param)
    {
        $validation = FALSE;
        if(!$this->mysql->connect_errno)
        {
            try
            {
                $stmt = $this->setStatement($query, $param);
                if($stmt != null)
                {
                    if($stmt->execute())
                    {
                        $stmt->close();
                        $validacion = TRUE;
                    }
                }
            }catch(Exception $e){
                $validation = FALSE;
            }
        }
        return $validation;
    }

    function __destruct()
    {
        $this->mysql->close();
    }
}
?>

down

-8

krapfi at gmail dot com ¶

14 years ago


The prototype of the mysqli_stmt constructor is mysqli_stmt::__construct(mysqli $link, $query);

To extend mysqli_stmt, do

class myStmt extends mysqli_stmt {
  public function __construct($link, $query) {
    parent::__construct($link, $query);
  }
}

class myI extends mysqli {
  public function prepare($query) {
    return new myStmt($this, $query);
  }
}

http://blog.myhat.de/2007/06/26/pdo-and-extending-mysqli/ has further infos including how to extend mysqli_result

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官方地址：https://www.php.net/manual/en/class.mysqli-stmt.php

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MySQLi_STMT类

简介

类摘要

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User Contributed Notes 2 notes