小编nhu*_*ton的帖子

嗨,任何人都可以给我一个解释(也许是一个例子),我将如何使用PHP从数字中删除尾随的零.

例如:

"Lat":"37.422005000000000000000000000000","Lon":"-122.84095000000000000000000000000"

将转入:

"Lat":"37.422005","Lon":"-122.84095"

我试图剥离零,使其更具可读性.我尝试使用str_replace()但是这也取代了数字中的零(doh).

谢谢= D

修复这里是我的解决方案:

编辑:更新以反映robguinness答案.

import com.google.android.maps.GeoPoint;
import com.google.android.maps.MapView;
import com.google.android.maps.Overlay;
import com.google.android.maps.Projection;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Point;

public class CircleOverlay extends Overlay {

Context context;
double mLat;
double mLon;
float mRadius;

public CircleOverlay(Context _context, double _lat, double _lon, float radius ) {
    context = _context;
    mLat = _lat;
    mLon = _lon;
    mRadius = radius;
}

public CircleOverlay(Context _context, double _lat, double _lon, float radius ) {
    context = _context;
    mLat = _lat;
    mLon = _lon;
    mRadius …

解决:缺少postData()的视图参数,更改为反映此.

我想帮助将GPS数据发送到服务器,服务器将使用PHP存储在MySQL数据库中.

这是在我的Java文件中:

ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);

public void postData(View v)
{
    nameValuePairs.add(new BasicNameValuePair("Lat","19.80"));
    nameValuePairs.add(new BasicNameValuePair("Lon","13.22"));

    //http post
    try{
        HttpClient httpclient = new DefaultHttpClient();
        HttpPost httppost = new      
        HttpPost("http://www.xxxxxxxx.com/test.php");
        httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
        HttpResponse response = httpclient.execute(httppost);
        HttpEntity entity = response.getEntity();
        InputStream is = entity.getContent();
        Log.i("postData", response.getStatusLine().toString());
    }

    catch(Exception e)
    {
        Log.e("log_tag", "Error in http connection "+e.toString());
    }           
}

我的PHP:

<?php
include 'connect.php'; //Connect

//retrieve the data
$lat = $_POST['lat'];
$lon = $_POST['lon'];

$sql = "INSERT INTO Coords (Lat, Lon) …

可能重复:
从iPhone上的NSString中删除HTML标记

我想知道从NSString中删除所有HTML/Javascript等标签的最佳方法.

我正在使用的当前解决方案留下评论和其他标签,删除它们的最佳方法是什么？

我知道OF解决方案,例如LibXML,但我想要一些例子.

当前解决方案

- (NSString *)flattenHTML:(NSString *)html trimWhiteSpace:(BOOL)trim {

    NSScanner *theScanner;
    NSString *text = nil;

    theScanner = [NSScanner scannerWithString:html];

    while ([theScanner isAtEnd] == NO) {

        // find start of tag
        [theScanner scanUpToString:@"<" intoString:NULL] ;                 
        // find end of tag         
        [theScanner scanUpToString:@">" intoString:&text] ;

        // replace the found tag with a space
        //(you can filter multi-spaces out later if you wish)
        html = [html stringByReplacingOccurrencesOfString:
                [ NSString stringWithFormat:@"%@>", text]
                                               withString:@""];
    }

    // trim off whitespace
    return trim ? …

我想要在过去1天内输入的行.

我有一个存储的日期列YYYY-MM-DD,我允许用户以这种格式发送他们想要查看的日期yyymmdd我如何才能使用这些数据将其限制在前一天？

我想这与BETWEEN关键字有关,但我无法弄明白.