是否可以在while loop下定义变量并将其打印在while loop
类似这样的事情
print $catName
while ($b = mysqli_fetch_assoc($results)) {
$catName = $b['cat'];
}
修改
$getBooks = $db->prepare('SELECT
id, cat, instituteId, title, cover, authorName FROM books_library WHERE instituteId=? AND cat=?');
$getList = array();
$getBooks->bind_param('ii', $inId, $cid);
if ($getBooks->execute()) {
$libResults = $getBooks->get_result();
$getList[] = $libResults;
?>
HTML代码来到这里
<h3 class="marginBottom8px margin-top_30px text-bold text-danger"><?php echo catName ?></h3>
然后那个循环
while ($book = mysqli_fetch_assoc($libResults)) {
$bokId = $book['id'];
$bookTitle = $bokId['title'];
$catName = $bokId['cat'];
$catName = $bokId['cat'];
现在在while loop下$catName echo <h3></h3>我如何import java.io.DataOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import android.app.ProgressDialog;
import android.media.AudioManager;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Environment;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
try {
Thread.sleep(3000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Log.e("Starting : ", "Starting...");
((TextView) findViewById(R.id.status)).setText("Starting...");
// execute this when the downloader must be fired
final getAppInfo downloadTask = new getAppInfo();
downloadTask.execute("http://farm1.static.flickr.com/114/298125983_0e4bf66782_b.jpg");
}
private class getAppInfo extends AsyncTask<String, String, String> {
/** The system calls this to perform work in a worker thread and
* delivers it the parameters given to AsyncTask.execute() */
ProgressDialog dialog;
@Override
protected void onPreExecute() {
dialog = new ProgressDialog(MainActivity.this);
dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
dialog.setMessage("Loading");
dialog.setIndeterminate(false);
dialog.setCancelable(false);
dialog.setMax(100);
dialog.setProgress(100);
dialog.show();
}
@Override
protected String doInBackground(String... urls) {
InputStream input = null;
OutputStream output = null;
HttpURLConnection connection = null;
try {
URL url = new URL(urls[0]);
connection = (HttpURLConnection) url.openConnection();
connection.setDoOutput(true);
connection.setDoInput(true);
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type", "application/json");
connection.setUseCaches(false);
connection.connect();
String length = connection.getHeaderField("Content-length");
Log.e("fileLength : ",""+length);
// expect HTTP 200 OK, so we don't mistakenly save error report
// instead of the file
if (connection.getResponseCode() != HttpURLConnection.HTTP_OK) {
return "Server returned HTTP " + connection.getResponseCode()
+ " " + connection.getResponseMessage();
}
// this will be useful to display download percentage
// might be -1: server did not report the length
int fileLength = connection.getContentLength();
Log.e("fileLength : ",""+fileLength);
// download the file
input = connection.getInputStream();
// final String resultt = org.apache.commons.io.IOUtils.toString(input, "UTF-8");
// Log.e("Response : ",""+resultt);
output = new FileOutputStream(Environment.getExternalStorageDirectory().getAbsolutePath()+"/testsql.jpg");
byte data[] = new byte[4096];
long total = 0;
int count;
while ((count = input.read(data)) != -1) {
// allow canceling with back button
if (isCancelled()) {
input.close();
return null;
}
total += count;
// publishing the progress....
if (fileLength > 0) // only if total length is known
publishProgress(""+(int) (total * 100 / fileLength));
output.write(data, 0, count);
}
} catch (Exception e) {
Log.e("exception : ",""+e.getMessage());
return e.toString();
} finally {
try {
if (output != null)
output.close();
if (input != null)
input.close();
} catch (IOException ignored) {
}
if (connection != null)
connection.disconnect();
}
return null;
}
@Override
protected void onProgressUpdate(String... progress) {
Log.v("count",progress[0]);
dialog.setProgress(Integer.parseInt(progress[0]));
}
/** The system calls this to perform work in the UI thread and delivers
* the result from doInBackground() */
@Override
protected void onPostExecute(String result) {
//dialog.setProgress(100);
if(dialog!=null) dialog.dismiss();
}
}
}
for i in $( ...
答案 0 :(得分：0)
在while块之后，将h3 html放入变量并打印出来。
$myHtml = '<h3 class="marginBottom8px margin-top_30px text-bold text-danger">'
. $catName . '</h3>';
print $myHtml;
不要像那样混合html和php。
答案 1 :(得分：-2)
我认为这是基于编辑过的问题
之后的问题while ($book = mysqli_fetch_assoc($libResults)) {
echo '<h3>' . $book['cat'] . '</h3>';
}