Question

当我使用console＆＃34; php5 -f myfile.php＆＃34;执行我的脚本时我有输出，但是当我用浏览器打开它时，我什么都看不见。

function initialize() 
{
  var bangalore = new google.maps.LatLng(12.9102585,77.6456604);
  var mapOptions = {
      zoom:11,
      center: bangalore,
      mapTypeId: google.maps.MapTypeId.ROADMAP,
      scrollwheel: true,
      streetViewControl: false,
      mapTypeControl: false,
      zoomControl: true,
      panControl: false,
      zoomControlOptions: {
        style: google.maps.ZoomControlStyle.LARGE,
        position: google.maps.ControlPosition.TOP_LEFT
      },
  };

  var map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);

  var boundaryCoordinates = [
      new google.maps.LatLng(77.446060, 13.096199),
      new google.maps.LatLng(77.378082, 13.130304),
      new google.maps.LatLng(77.365723, 13.094861),
      new google.maps.LatLng(77.382202, 13.084160),
      new google.maps.LatLng(77.378082, 12.981810),
      new google.maps.LatLng(77.367783, 12.952368),
      new google.maps.LatLng(77.384949, 12.942330),
      new google.maps.LatLng(77.382202, 12.897489),
      new google.maps.LatLng(77.417908, 12.893473),
      new google.maps.LatLng(77.391815, 12.820505),
      new google.maps.LatLng(77.429581, 12.795732),
      new google.maps.LatLng(77.511292, 12.744168),
      new google.maps.LatLng(77.579956, 12.739479),
      new google.maps.LatLng(77.597122, 12.787696),
      new google.maps.LatLng(77.632141, 12.790375),
      new google.maps.LatLng(77.632141, 12.835904),
      new google.maps.LatLng(77.663727, 12.826531),
      new google.maps.LatLng(77.651367, 12.804436),
      new google.maps.LatLng(77.680206, 12.798410),
      new google.maps.LatLng(77.711792, 12.807114),
      new google.maps.LatLng(77.739258, 12.867368),
      new google.maps.LatLng(77.769470, 12.854649),
      new google.maps.LatLng(77.862167, 12.822514),
      new google.maps.LatLng(77.883453, 12.832557),
      new google.maps.LatLng(77.891693, 12.868037),
      new google.maps.LatLng(77.888260, 12.893473),
      new google.maps.LatLng(77.859421, 12.926268),
      new google.maps.LatLng(77.823029, 12.969096),
      new google.maps.LatLng(77.830582, 12.989839),
      new google.maps.LatLng(77.789383, 12.988500),
      new google.maps.LatLng(77.796249, 13.059413),
      new google.maps.LatLng(77.823029, 13.068108),
      new google.maps.LatLng(77.818222, 13.083491),
      new google.maps.LatLng(77.770844, 13.082154),
      new google.maps.LatLng(77.750931, 13.115593),
      new google.maps.LatLng(77.761230, 13.150364),
      new google.maps.LatLng(77.737885, 13.152370),
      new google.maps.LatLng(77.663040, 13.155045),
      new google.maps.LatLng(77.587509, 13.167080),
      new google.maps.LatLng(77.501678, 13.156382),
      new google.maps.LatLng(77.507172, 13.177777),
      new google.maps.LatLng(77.467346, 13.177108),
      new google.maps.LatLng(77.472153, 13.165074),
      new google.maps.LatLng(77.437820, 13.157719),
      new google.maps.LatLng(77.427521, 13.137660),
      new google.maps.LatLng(77.442627, 13.131642),
      new google.maps.LatLng(77.446060, 13.096199),
  ];

  var boundary = new google.maps.Polyline({
      path: boundaryCoordinates,
      geodesic: false,
      strokeColor: '#FF0000',
      strokeOpacity: 1.0,
      strokeWeight: 2,
  });

  boundary.setMap(map);

  // var flightPlanCoordinates = [
  //     new google.maps.LatLng(37.772323, -122.214897),
  //     new google.maps.LatLng(21.291982, -157.821856),
  //     new google.maps.LatLng(-18.142599, 178.431),
  //     new google.maps.LatLng(-27.46758, 153.027892)
  // ];

  //   console.log(flightPlanCoordinates);

  // var flightPath = new google.maps.Polyline({
  //   path: flightPlanCoordinates,
  //   geodesic: true,
  //   strokeColor: '#FF0000',
  //   strokeOpacity: 1.0,
  //   strokeWeight: 2
  // });

  // flightPath.setMap(map);
}


google.maps.event.addDomListener(window, 'load', initialize);

Answer 1

您的网络服务器用户很可能无法访问** root *文件夹。尝试将 pays.log 移动到您的网络服务器可以进入的位置。还要确保对文件本身也应用了正确的权限。

Answer 2

最可能的答案是system()功能被禁用。

这有两个可能的原因。

安全模式已激活
该功能位于已禁用的功能列表中

您可以ini_get('safe_mode')检查安全模式是否处于活动状态。如果它不活跃，那么会为您提供0。更多信息请访问：PHP: safe-mode

禁用的功能也是一个ini值。您可以按ini_get('disable_functions')获取它。它包含以逗号分隔的已禁用功能列表。如果列表中有system，则无效。更多信息请访问：PHP: disable-functions

禁用system等功能非常常见。

带系统功能的空白输出

2 个答案: