<?php

// 激活断言，并设置它为 quiet

assert_options(ASSERT_ACTIVE, 1);

assert_options(ASSERT_WARNING, 0);

assert_options(ASSERT_QUIET_EVAL, 1);

// 设置回调函数

assert_options(ASSERT_CALLBACK, 'my_assert_handler');

// 让一则断言失败

assert('mysql_query("")');

//创建处理函数

function my_assert_handler($file, $line, $code)

{

    echo "error:

        File '$file'

        Line '$line'

        Code '$code'";

}