来自：https://github.com/leangjia/ez_SQL_help-zh_cn

附：
ez_sql_help_zh_cn.htm

DEMO.PHP 演示示例代码：

<?php

    /**********************************************************************
    *  ezSQL initialisation for mySQL
    */

    // Include ezSQL core
    include_once "../shared/ez_sql_core.php";

    // Include ezSQL database specific component
    include_once "ez_sql_mysql.php";

    // Initialise database object and establish a connection
    // at the same time - db_user / db_password / db_name / db_host
    $db = new ezSQL_mysql('db_user','db_password','db_name','db_host');

    /**********************************************************************
    *  ezSQL demo for mySQL database
    */

    // Demo of getting a single variable from the db
    // (and using abstracted function sysdate)
    $current_time = $db->get_var("SELECT " . $db->sysdate());
    print "ezSQL demo for mySQL database run @ $current_time";

    // Print out last query and results..
    $db->debug();

    // Get list of tables from current database..
    $my_tables = $db->get_results("SHOW TABLES",ARRAY_N);

    // Print out last query and results..
    $db->debug();

    // Loop through each row of results..
    foreach ( $my_tables as $table )
    {
        // Get results of DESC table..
        $db->get_results("DESC $table[0]");

        // Print out last query and results..
        $db->debug();
    }

?>

----------以下转载----------

操作MySQL，使用ezSQL，简单而方便

ezSQL官方下载地址：http://justinvincent.com/ezsql

使用示例：

事先 include once <ez_sql.php>;

include once <ez_sql.php>;

取数值：

$var = $db->get_var("SELECT count(*) FROM users");

取对象：

$user = $db->get_row("SELECT name,email FROM users WHERE id = 2");

取数组：

$users = $db->get_results("SELECT name, email FROM users");
foreach ( $users as $user )
{
    // 使用对象语法
    echo $user->name;
    echo $user->email;
}

可以看出，其实函数返回值为二维数组，经foreach分解后，$user为每条记录的内容，可直接用$user->字段名的方式访问。

get_results()还有另一种调用方式：

// Extract results into the array $dogs (and evaluate if there are any results at the same time)..
if ( $dogs = $db->get_results(“SELECT breed, owner, name FROM dogs”, ARRAY_A) )
{
            // Loop through the resulting array on the index $dogs[n]
            foreach ( $dogs as $dog_detail )
            {
 
                        // Loop through the resulting array
                        foreach ( $dogs_detail as $key => $val )
                        {
                                    // Access and format data using $key and $val pairs..
                                    echo “<b>” . ucfirst($key) . “</b>: $val<br>”;
                        }
 
                        // Do a P between dogs..
                        echo “<p>”;
            }
}
else
{
            // If no users were found then if evaluates to false..
            echo “No dogs found.”;
}

输出结果：

Output:
Breed: Boxer
Owner: Amy
Name: Tyson

Breed: Labrador
Owner: Lee
Name: Henry

Breed: Dachshund
Owner: Mary
Name: Jasmine

执行Insert操作：

$db->query("INSERT INTO users (id, name, email) VALUES (NULL,'duuge','duuge@duuge.com')");

调试信息

// Display last query and all associated results

$db->debug();

四种方法：

  1. bool $db->query(query)
  2. var $db->get_var(query)
  3. mixed $db->get_row(query)
  4. mixed $db->get_results(query)

ezSQL functions

$db->get_results -- get multiple row result set from the database (or previously cached results)

$db->get_row -- get one row from the database (or previously cached results)

$db->get_col -- get one column from query (or previously cached results) based on column offset

$db->get_var -- get one variable, from one row, from the database (or previously cached results)

$db->query -- send a query to the database (and if any results, cache them)

$db->debug -- print last sql query and returned results (if any)

$db->vardump -- print the contents and structure of any variable

$db->select -- select a new database to work with

$db->get_col_info -- get information about one or all columns such as column name or type

$db->hide_errors -- turn ezSQL error output to browser off

$db->show_errors -- turn ezSQL error output to browser on

$db->escape -- Format a string correctly to stop accidental mal formed queries under all PHP conditions

$db = new db -- Initiate new db object.

ezSQL variables

$db->num_rows – Number of rows that were returned (by the database) for the last query (if any)

$db->insert_id -- ID generated from the AUTO_INCRIMENT of the previous INSERT operation (if any)

$db->rows_affected -- Number of rows affected (in the database) by the last INSERT, UPDATE or DELETE (if any)

$db->num_queries -- Keeps track of exactly how many 'real' (not cached) queries were executed during the lifetime of the current script

$db->debug_all – If set to true (i.e. $db->debug_all = true;) Then it will print out ALL queries and ALL results of your script.

$db->cache_dir – Path to mySQL caching dir.

$db->cache_queries – Boolean flag (see mysql/disk_cache_example.php)

$db->cache_inserts – Boolean flag (see mysql/disk_cache_example.php)

$db->use_disk_cache – Boolean flag (see mysql/disk_cache_example.php)

$db->cache_timeout – Number in hours (see mysql/disk_cache_example.php)

EOF