php 常见问题及解决方法
(1)请求要素是json字符串,后台如何获取
//this is a common php library by huangwei , //date:2014-07-03 //see http://blog.sina.com.cn/s/blog_4657e98e0100dyxp.html //see http://www.cnblogs.com/fullhouse/archive/2012/04/24/2468870.html if(array_key_exists(‘HTTP_RAW_POST_DATA‘,$GLOBALS)){//判断是否有key-HTTP_RAW_POST_DATA $raw_data=$GLOBALS[‘HTTP_RAW_POST_DATA‘];//always_populate_raw_post_data = On } if (empty($raw_data)) { $raw_data=$_POST; } if (empty($raw_data)) { //echo "raw_data is empty"; $raw_data=file_get_contents("php://input"); } if(empty($raw_data)) { $raw_data=$_GET; } if(empty($raw_data)) { $raw_data=$_POST; }
(2)如何把接收到的json字符串转化为对象
$post_object = json_decode($raw_data);
(3)如何把json对象转化为数组
//convert object to array function object_to_array($obj){ if(is_array($obj)){ return $obj; } $_arr = is_object($obj)? get_object_vars($obj) :$obj; foreach ($_arr as $key => $val){ $val=(is_array($val)) || is_object($val) ? object_to_array($val) :$val; $arr[$key] = $val; } return $arr; }
(4)获取php服务器操作系统类型
/*** * @return string : windows or linux */ function serverOS(){ $os_name=strtolower(php_uname(‘s‘)); $os_pos=strpos($os_name,‘linux‘); if($os_pos === false) { return "windows"; } else { return "linux"; } }
应用:
$root_path_index; //echo serverOS(); if(serverOS()==‘linux‘){ $root_path_index=-9; }else{ $root_path_index=32; } $config[‘webroot‘]=substr(dirname(__FILE__), 0, $root_path_index);///var/www/html/exchange
(5)字符串a是否包含字符串b
function strexists($a, $b) { return !(strpos($a, $b) === FALSE); }
(6)递归创建文件夹
function mkdirs($dir) { return is_dir($dir) or (mkdirs(dirname($dir)) and mkdir($dir, 0777)); }
php学习网站
http://www.w3school.com.cn/php
http://www.php.net/manual/zh/function.json-decode.php
http://www.cnblogs.com/bananaplan/p/Sublime-Text-3-Powerful.html
推荐php IDE:http://pan.baidu.com/s/1kTA81E3
时间: 2024-08-09 22:00:27