基于PHP选项与信息函数的使用详解

assert_options(ASSERT_ACTIVE, true);//允许使用assert()函数
assert_options(ASSERT_WARNING, false);//在assert失败时不输出警告信息
assert_options(ASSERT_BAIL, true);//assert失败后终止代码执行
assert_options(ASSERT_CALLBACK, 'getMsg');//assert失败后终止代码执行。

echo '开始：<br/>';
assert('mysql_query("")');
echo '测试成功！';

function getMsg(){
echo '出错啦！';
}

assert_options(ASSERT_ACTIVE, true);//允许使用assert()函数
assert_options(ASSERT_WARNING, false);//在assert失败时不输出警告信息
assert_options(ASSERT_BAIL, true);//assert失败后终止代码执行
assert_options(ASSERT_CALLBACK, 'getMsg');//assert失败后终止代码执行。

echo '开始：<br/>';
assert(is_int(1.2));//检测结果为fales
echo '测试成功！';

function getMsg(){
echo '出错啦！';
}

if(!extension_loaded('sqlite')){//测试指定的扩展是否已经激活
$prefix = (PHP_SHLIB_SUFFIX === 'dll') ? 'php_' : '';
dl($prefix . 'sqlite.' . PHP_SHLIB_SUFFIX);
}

print_r(get_extension_funcs("xml"));

include 'test1.php';
include_once 'test2.php';
require 'test3.php';
require_once 'test4.php';

$included_files = get_included_files();

foreach ($included_files as $filename){
echo "$filename/n";
}

$ip = getenv('REMOTE_ADDR');

print_r(ini_get_all("pcre"));
print_r(ini_get_all());

phpcredits(CREDITS_GROUP | CREDITS_DOCS | CREDITS_FULLPAGE);

if (version_compare(PHP_VERSION, '5.3.0') >= 0) {
echo '我的PHP版本很高: ' . PHP_VERSION . "/n";
}