github地址：
https://github.com/fzaninotto/Faker
基本使用：
Use Faker\Factory::create() to create and initialize a faker generator, which can generate data by accessing properties named after the type of data you want.
<?php
// require the Faker autoloader
require_once ‘/path/to/Faker/src/autoload.php‘;
// alternatively, use another PSR-0 compliant autoloader (like the Symfony2 ClassLoader for instance)
// use the factory to create a Faker\Generator instance
$faker = Faker\Factory::create();
// generate data by accessing properties
echo $faker->name;
// ‘Lucy Cechtelar‘;
echo $faker->address;
// "426 Jordy Lodge
// Cartwrightshire, SC 88120-6700"
echo $faker->text;
Even if this example shows a property access, each call to $faker->name yields a different (random) result. This is because Faker uses __get() magic, and forwards Faker\Generator->$property calls toFaker\Generator->format($property).
<?php
for ($i=0; $i < 10; $i++) {
echo $faker->name, "\n";
}
Each of the generator properties (like name, address, and lorem) are called "formatters". A faker generator has many of them, packaged in "providers". Here is a list of the bundled formatters in the default locale.
Faker\Provider\BaserandomDigit // 7
randomDigitNotNull // 5
randomNumber($nbDigits = NULL) // 79907610
randomFloat($nbMaxDecimals = NULL, $min = 0, $max = NULL) // 48.8932
numberBetween($min = 1000, $max = 9000) // 8567
randomLetter // ‘b‘
randomElements($array = array (‘a‘,‘b‘,‘c‘), $count = 1) // array(‘c‘)
randomElement($array = array (‘a‘,‘b‘,‘c‘)) // ‘b‘
numerify($string = ‘###‘) // ‘609‘
lexify($string = ‘????‘) // ‘wgts‘
bothify($string = ‘## ??‘) // ‘42 jz‘
原文：http://www.cnblogs.com/youxin/p/3986771.html