PHP获取HTTP状态和响应时间_怎么查看基于php系统响应时间-优快云博客

本文介绍了一个PHP函数，用于获取指定URL的HTTP响应状态码及请求所花费的时间。该函数支持HTTP和HTTPS协议，并能处理常见的URL结构。

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  function 
   get_http_code(
  $url
  =
  "localhost"
  , 
  $port
  =80,  
  $fsock_timeout
  =10){
 

      
  set_time_limit(0);
 

      
  ignore_user_abort(true);
 

    
 

      
  // 记录开始时间
 

      
  list(
  $usec
  , 
  $sec
  ) = 
  explode
  (
  " "
  , microtime(true));
 

      
  $timer
  [
  'start'
  ] = (float)
  $usec 
  + (float)
  $sec
  ;
 

    
 

      
  // 校验URL
 

      
  if
  (!preg_match(
  "/^https?:\/\//i"
  , 
  $url
  )){
 

          
  $url 
  = 
  "http://"
  .
  $url
  ;
 

      
  }
 

      
  // 支持HTTPS
 

      
  if
  (preg_match(
  "/^https:\/\//i"
  , 
  $url
  )){
 

          
  $port 
  = 443;
 

      
  }
 

    
 

      
  // 解析URL
 

      
  $urlinfo 
  = 
  parse_url
  (
  $url
  );
 

      
  if
  (
  empty
  (
  $urlinfo
  [
  'path'
  ])){
 

          
  $urlinfo
  [
  'path'
  ] = 
  '/'
  ;
 

      
  }
 

      
  $host 
  = 
  $urlinfo
  [
  'host'
  ];
 

      
  $uri 
  = 
  $urlinfo
  [
  'path'
  ] . (
  empty
  (
  $urlinfo
  [
  'query'
  ])?
  ''
  :
  $urlinfo
  [
  'query'
  ]);
 

    
 

      
  // 通过fsock打开连接
 

      
  if
  (!
  $fp 
  = 
  fsockopen
  (
  $host
  , 
  $port
  , 
  $errno
  , 
  $error
  , 
  $fsock_timeout
  )){
 

          
  list(
  $usec
  , 
  $sec
  ) = 
  explode
  (
  " "
  , microtime(true));
 

          
  $timer
  [
  'end'
  ] = (float)
  $usec 
  + (float)
  $sec
  ;
 

          
  $usetime 
  = (float)
  $timer
  [
  'end'
  ] - (float)
  $timer
  [
  'start'
  ];
 

    
 

          
  return 
  array
  (
  'code'
  =>-1, 
  'usetime'
  =>
  $usetime
  );
 

      
  }
 

    
 

      
  // 提交请求
 

      
  $status 
  = socket_get_status(
  $fp
  );
 

      
  $out 
  = 
  "GET {$uri} HTTP/1.1\r\n"
  ;
 

      
  $out 
  .= 
  "Host: {$host}\r\n"
  ;
 

      
  $out 
  .= 
  "Connection: Close\r\n\r\n"
  ;
 

      
  $write 
  = fwrite(
  $fp
  , 
  $out
  );
 

      
  if
  (!
  $write
  ){
 

          
  list(
  $usec
  , 
  $sec
  ) = 
  explode
  (
  " "
  , microtime(true));
 

          
  $timer
  [
  'end'
  ] = (float)
  $usec 
  + (float)
  $sec
  ;
 

          
  $usetime 
  = (float)
  $timer
  [
  'end'
  ] - (float)
  $timer
  [
  'start'
  ];
 

    
 

          
  return 
  array
  (
  'code'
  =>-2, 
  'usetime'
  =>
  $usetime
  );
 

      
  }
 

    
 

      
  $ret 
  = 
  fgets
  (
  $fp
  , 1024);
 

      
  preg_match(
  "/http\/\d\.\d\s(\d+)/i"
  , 
  $ret
  , 
  $m
  );
 

      
  $code 
  = 
  $m
  [1];
 

      
  fclose(
  $fp
  );
 

    
 

      
  list(
  $usec
  , 
  $sec
  ) = 
  explode
  (
  " "
  , microtime(true));
 

      
  $timer
  [
  'end'
  ] = (float)
  $usec 
  + (float)
  $sec
  ;
 

      
  $usetime 
  = (float)
  $timer
  [
  'end'
  ] - (float)
  $timer
  [
  'start'
  ];
 

    
 

      
  return 
  array
  (
  'code'
  =>
  $code
  , 
  'usetime'
  =>
  $usetime
  );
 

  }
 