PHP支持的协议和封装的协议

时间：2021-09-15 10:44:00

今天主要看了下PHP支持的协议和封装的协议，主要了解了一下PHP中的配置协议方面的东西，弄明白了以前比较模糊的stream_context_create()等上下文方法，还没有完全看完，先将自己的片段代码贴在这里，mark一下PHP支持的协议和封装的协议。

<?php

/**

 * Created by PhpStorm.

 * User: f3ngt1ng

 * Date: 2017/2/14

 * Time: 9:14

 * Today is lovers' day~~

 */

//上下文(context)选项和参数(支持的协议和封装协议）

//allow_url_fopen = 1

/*

$url = 'http://www.baidu.com';

$fp = fopen($url, 'r');

$meta_data = stream_get_meta_data($fp);

$stream_contents = stream_get_contents($fp);

var_dump($meta_data);

*/

//echo ini_get('allow_url_fopen');

//print_r($stream_contents);

//php://

/*$fp = fopen('php://stdin', 'r');

while($line = fgets($fp)){

    fwrite(STDOUT, $line);

    //echo $line.'xx'.'\r\n';

}

fclose($fp);

*/

//echo sys_get_temp_dir();

//哪些受allow_url_fopen影响

/*

$url = 'http://www.google.com';

readfile("php://filter/read=string.rot13/resource=$url");

file_put_contents("php://filter/write=string.toupper/resource=xxx", 'hello,world~');

*/

//ini_set("allow_url_fopen", 0);

//echo ini_get('allow_url_fopen');

//readfile('http://www.baidu.com');

/*

$fp = fopen("php://filter/write=string.toupper|convert.base64-encode/resource=filter.txt" ,'w');

fputs($fp, 'hello,world');

fclose($fp);

*/

/*

$file = fopen('filter.txt', 'r');

stream_filter_append($file, 'convert.base64-decode', STREAM_FILTER_READ);

while($line = fgets($file)){

    echo $line;

}

fclose($file);

*/

// readfile vs fopen/fgets/fgetc

//readfile("php://filter/read=convert.base64-decode/resource=filter.txt");

//$filters = stream_get_filters();

//print_r($filters);

//$wrappers = stream_get_wrappers();

//print_r($wrappers);

/*

$fp = fopen('data://text/plain;base64,SEVMTE8sV09STEQ=', 'r');

$media_type = stream_get_meta_data($fp);

echo $media_type['mediatype'];

print_r($media_type);*/

//echo ini_get('allow_url_include');

ini_set('allow_url_include', 'On');

//需要allow_url_fopen打开

echo ini_get('allow_url_include');

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