PHP冷知识

  • http_build_query

use:将数组转化成url参数

$data = array('foo', 'bar', 'baz', 'boom', 'cow' => 'milk', 'php' =>'hypertext processor'); 
echo http_build_query($data);
// 输出
//0=foo&1=bar&2=baz&3=boom&cow=milk&php=hypertext+processor 
  • $_SERVER["REQUEST_TIME_FLOAT"]

use: 获取请求开始的时间戳(微秒级)

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