PHP 网上代码收集

常用

header( 'Content-Type:text/html;charset=utf-8 ');

global $_G; 
$uniqid = uniqid();
$this->Current();同类方法调用

$pageSize = getgpc('pageSize');

$pageSize = isset($_GET['pageSize']) ? $_GET['pageSize'] : 10;

$pageSize = $pageSize ? $pageSize : 10;

常量:
define('ROOT_PATH', dirname(__FILE__).'/../../');
$path=ROOT_PATH.'./config/config_global.php';
echo $path;

define('ROOT_PATH', dirname(__FILE__));

define("WWWROOT",str_ireplace(str_replace("/","\",$_SERVER['PHP_SELF']),'',__FILE__)."\");

define("APPROOT",$_SERVER['DOCUMENT_ROOT']);

字符串格式数组拼接:

$column = is_array($columns) ? implode(', ', $columns) : $columns;
$sql = sprintf("SELECT %s FROM %s WHERE userid=%s",$column,"%t",$uid);

setcookie("aaa",$aaaa,time()+3600*12,"/");

setcookie("aa", $user, expire, path, domain);

// 设置 cookie 过期时间为过去 1 小时

setcookie("username", "", time()-3600);

setcookie("username","OKadmin",time()-3600);

setcookie("username","OKadmin",0); //浏览器关闭 是自动失效

setcookie("username");

SQL字段特殊处理办法:单引号?没看懂这个符号.

$options = array(

'fields' => 'id,`desc`,createTime',}

`desc` `group`

日期时间常用

$starttime = $starttime ? date('Y-m-d 00:00:00',strtotime($starttime)) : date('Y-m-d 00:00:00',time());

$endtime = $endtime ? date('Y-m-d 23:59:59',strtotime($endtime)) : date('Y-m-d 23:59:59',time());

$condition['where'] .= " AND createTime BETWEEN '{$starttime}' AND '{$endtime}'";

 

 

 HTTP

    private function httpGet($url) {
        $curl = curl_init();
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($curl, CURLOPT_TIMEOUT, 500);
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
        curl_setopt($curl, CURLOPT_URL, $url);
        $res = curl_exec($curl);
        curl_close($curl);
        return $res;
    }

 Redis 

         //$data =  self::m('#demo_session')->login($request); 
         //$data =  self::m('#demo_session')->setAccessToken('888'); 
         //$data =  self::m('#demo_session')->getAccessToken('5b1ba608b4b59'); 
         //$data =  self::m('#demo_session')->rmAccessToken('5b1ba608b4b59');      
         //$data =  self::m('#demo_session')->CurrentModeName(); 




         public function setAccessToken($uid) 
         { 
              if($uid==NULL){return NULL;}
             $uniqid = uniqid(); 
             $cachename = 'root#demo#Token#'.$uniqid;
             
             if(C::memory()->enable && $data =  memory('set', $cachename , $uid , 60))
             {
             return $uniqid;
             } 
             return NULL;
             
          }
     
         public function getAccessToken($uniqid) 
         {
             if($uniqid==NULL){return NULL;}
             $cachename = 'root#demo#Token#'.$uniqid;
             if(C::memory()->enable && $uid =  memory('get', $cachename))
             {
             return $uid;
             } 
             return NULL;
     
         }
     
     
         public function rmAccessToken($uniqid) 
         { 
              if($uniqid==NULL){return NULL;} 
             $cachename = 'root#demo#Token#'.$uniqid;
             
             if(C::memory()->enable && $data =  memory('rm', $cachename))
             {
             return $data;
             } 
             return NULL;
             
          }
     
     
         public function CurrentModeName() 
         {
             $data = 'root#demo#Token#';return $data;
          }
     
     

 PHP内置函数

PHP number_format()
array_column() 返回输入数组中某个单一列的值。

echo intval("0x1a", 0), "
"; // 使用16进制。 结果 "26" 
echo intval("057", 0), "
"; // 使用8进制。 结果 "47" 
echo intval("57"),"
"; // 使用10进制。结果57
echo intval("42", 0), "
"; //  结果 "42" 

 PHP向数组添加新元素的两种方法

$a = array(1);
$a[] = 3;
array_push($a,44);
echo "<pre>";
print_r($a);
exit;

　　json

var obj = JSON.stringify({
    a:  ('888'),  
    b:  ('123'),  
    now: new Date().getTime()  
});
需要使用JSON.stringify，它将js的数据类型转为json格式的字符串: '{"a":12,"b":34,"now":1403525674676}'

如果不用JSON.stringify，那POST消息体是普通的字符串: 'a=12&b=34&now=1403525674676'

以下写法并不能达到POST JSON数据包的效果，这是标准的POST格式。

console.log(data);
alert(data.text);
var jsonStr = '{"name":"zhangsan","age":23,"email":"chentging@aliyun.com"}';console.log(jsonStr);
var json = eval ("(" + jsonStr + ")");console.log(json);
//var obj = jQuery.parseJSON(data);console.log(obj);
//var obj = JSON.parse(data);

<?php
$people = array("Peter", "Joe", "Glenn", "Cleveland");
if(in_array("Glenn",$people)){
  echo "Match found";
}else{
  echo "Match not found";
}
?>

LayUI 常用注意事项

                //var $ = layui.jquery; 
                var $ = layui.$;