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    ▪PHP读取四种配置文件(php,ini,yaml,xml)的例子      PHP读取四种配置文件(php,ini,yaml,xml)的例子，代码如下，大家自己看吧，说不好哪天就能用得上哦。   代码如下: <?php /** * 读取4中配置的表信息,现支持php.ini,xml.yaml */ class Settings{ var $_se.........

    ▪PHP microtime用法点滴      虽然我是个PHP新手，但是今天看到一段代码，忍不住修改了几行。   代码如下: <?php class runTime {     var $StartTime = 0;     var $StopTime = 0;     var $TimeSpent = 0;     function start(){     .........

    ▪php curl 学习总结          说明：使用curl 能快捷的抓取网页、模拟POST、GET请求，当然也不仅仅是HTTP协议的一些封装，还支持FTP、代理、HTTPS、LDAP等应用。     curl并不是PHP特有的，很多语言中都有，一个东西好.........

代码如下:

<?php
/**
* 读取4中配置的表信息,现支持php.ini,xml.yaml
*/
class Settings{
var $_settings = array();
/**
    * 获取某些设置的值
    *
    * @param unknown_type $var
    * @return unknown
    */
       function get($var) {
         $var = explode()('.', $var);

         $result = $this->_settings;
         foreach ($var as $key) {
                   if (!isset()($result[$key])) { return false; }

                   $result = $result[$key];
         }

         return $result;

        // trigger_error ('Not yet implemented', E_USER_ERROR);//引发一个错误
       }

       function load() {
            trigger_error ('Not yet implemented', E_USER_ERROR);
       }
}

/**
* 针对PHP的配置,如有配置文件
* $file=
<?php
$db = array();

// Enter your database name here:
$db['name'] = 'test';

// Enter the hostname of your MySQL server:
$db['host'] = 'localhost';

?>

具体调用:
include ('settings.php'); //原始环境假设每个类为单独的一个类名.php文件

// Load settings (PHP)
$settings = new Settings_PHP;
$settings->load('config.php');

echo 'PHP: ' . $settings->get('db.host') . '';

*
*/
Class Settings_PHP Extends Settings {
function load ($file) {
         if (file_exists($file) == false) { return false; }

         // Include file
         include ($file);
unset($file);   //销毁指定变量
$vars = get_defined_vars(); //返回所有已定义变量的列表,数组,变量包括服务器等相关变量,
//通过foreach吧$file引入的变量给添加到$_settings这个成员数组中去.
foreach ($vars as $key => $val) {
         if ($key == 'this') continue;

         $this->_settings[$key] = $val;
}
}
}

//////////////////////读取INI文件,主要用到parser_ini_file函数,该函数返回一个数组,如第二个参数为true时则返回多维数组/////////////////////
/**
* ini例子:
* [db]
name = test
host = localhost
调用例子:
$settings = new Settings_INI;
$settings->load('config.ini');
echo 'INI: ' . $settings->get('db.host') . '';

*
*/
Class Settings_INI Extends Settings {
function load ($file) {
         if (file_exists($file) == false) { return false; }
         $this->_settings = parse_ini_file ($file, true);
}
}

//////////////////////读取XML文件,需要用到XML_PARSER////////////////////////
/**
* XML例子:
    <?xml version="1.0" encoding="UTF-8"?>
<settings>
         <db>
                   <name>test</name>
                   <host>localhost</host>
         </db>
</settings>
调用例子:
// Load settings (XML)
$settings = New Settings_XML;
$settings->load('config.xml');
echo 'XML: ' . $settings->get('db.host') . '';
*
*/
Class Settings_XML Extends Settings {
function load ($file) {
       if (file_exists($file) == false) { return false; }

       /**xmllib.php为PHP XML Library, version 1.2b,相关连接:http://keithdevens.com/software/phpxml
       xmllib.php主要特点是把一个数组转换成一个xml或吧xml转换成一个数组
       XML_unserialize:把一个xml给转换 成一个数组
       XML_serialize:把一个数组转换成一个xml
       自PHP5起,simpleXML就很不错,但还是不支持将xml转换成数组的功能,所以xmlLIB还是很不错的.
       */
       include ('xmllib.php');
       $xml = file_get_contents($file);
       $data = XML_unserialize($xml);
       $this->_settings = $data['settings'];
}
}
//////////////////////////////////读取YAML格式文件///////////////////////////////////////////////
/**
使用YAML必须使用到SPYC这个库,相关链接在http://spyc.sourceforge.net/
YAML配置例子:
db:
   name: test
   host: localhost
*/
Class Settings_YAML Extends Settings {
function load ($file) {
       if (file_exists($file) == false) { return false; }

       include ('spyc.php');
       $this->_settings = Spyc::YAMLLoad($file);
}
}

代码如下:

<?php
class runTime {
    var $StartTime = 0;
    var $StopTime = 0;
    var $TimeSpent = 0;

    function start(){
        $this->StartTime = microtime();
    }

    function stop(){
        $this->StopTime = microtime();
    }

    function spent() {
        if ($this->TimeSpent) {
            return $this->TimeSpent;
        } else {
            $StartMicro = substr($this->StartTime,0,10);
            $StartSecond = substr($this->StartTime,11,10);
            $StopMicro = substr($this->StopTime,0,10);
            $StopSecond = substr($this->StopTime,11,10);
            $start = floatval($StartMicro) + $StartSecond;
            $stop = floatval($StopMicro) + $StopSecond;
            $this->TimeSpent = $stop - $start;
            return round($this->TimeSpent,8);
        }
    } // end function
}

代码如下:

<?php
function microtime_float3(){
    return microtime(true);
}

function microtime_float2(){
    if( PHP_VERSION > 5){
        return microtime(true);
    }else{
        list($usec, $sec) = explode()(" ", microtime());
        return ((float)$usec + (float)$sec);
    }
}

function microtime_float(){
    list($usec, $sec) = explode(" ", microtime());
    return ((float)$usec + (float)$sec);
}

function runtime($t1){
    return number_format((microtime_float() - $t1)*1000, 4).'ms';
}

$t1 = microtime_float();
for($i=0;$i<10000;$i++){
    microtime_float();
}
echo "microtime_float=====";
echo runtime($t1).'<br>';
$t1 = microtime(true);

for($i=0;$i<10000;$i++){
    microtime(true);
}
echo "microtime_true=====";
echo runtime($t1).'<br>';
$t1 = microtime(true);

for($i=0;$i<10000;$i++){
    microtime_float2();
}

echo "microtime_float2=====";
echo runtime($t1).'<br>';
$t1 = microtime(true);

for($i=0;$i<10000;$i++){
    microtime_float3();
}
echo "microtime_float3=====";
echo runtime($t1).'<br>';
?>

代码如下:

$curl = curl_init();

// 设置你需要抓取的URL
curl_setopt($curl, CURLOPT_URL, 'http://126.com');

// 设置header 是否显示头部信息
//curl_setopt($curl, CURLOPT_HEADER, 1);

// 设置cURL 参数，要求结果保存到字符串中还是输出到屏幕上。
//curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);

// 运行cURL，请求网页
$data = curl_exec($curl);

// 关闭URL请求
curl_close($curl);

// 显示获得的数据
var_dump($data);

代码如下:

﹤?php
$phoneNumber = '13912345678';
$message = 'This message was generated by curl and php';
$curlPost = 'pNUMBER='  . urlencode($phoneNumber) . '&MESSAGE=' . urlencode($message) . '&SUBMIT=Send';
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'http://www.example.com/sendSMS.php');
curl_setopt($ch, CURLOPT_HEADER, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $curlPost);
$data = curl_exec($ch);
curl_close($ch);
?﹥

代码如下:

﹤?php
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'http://www.example.com');
curl_setopt($ch, CURLOPT_HEADER, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
curl_setopt($ch, CURLOPT_PROXY, 'fakeproxy.com:1080');
curl_setopt($ch, CURLOPT_PROXYUSERPWD, 'user:password');
$data = curl_exec($ch);
curl_close($ch);
?﹥

代码如下:

﹤?php
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'http://www.example.com');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
curl_setopt(CURLOPT_USERPWD, '[username]:[password]')

$data = curl_exec($ch);
curl_close($ch);
?﹥