在PHP中循环MySQL查询结果

Question

$b = 1;
$d = mysql_query("select *from 'table_name'");
while($b < 10){
    while($e = mysql_fetch_array($d)){
        echo $e['name_field'];
    }
    $b++;
}

I want to loop the output, but I'm stuck. I've tried but still got nothing. something like this :

<?php
$a = 0; 
$b = 0;
for($a=0;$a<10;$a++){
    for($b=0;$b<10;$b++){
        echo $b;        
    }
}

Answer 1

Seperate * and FROM by a space. Use backticks or no delimiters instead of single quotes for the table name.

If you want to limit your result, add a LIMIT expression to your query:

SELECT * FROM `table_name` LIMIT 10

And then loop through the results:

while($row = mysql_fetch_array($d)){
     echo $row['name_field'];
}

Answer 2

You aren't incrementing $b anywhere. It gets set as 1 and never increased, so it will always be less than 10.

Answer 3

Your query is wrong as table name should not be in single quote you can use backticks.

if you want to limit result to show only 10 rows add LIMIT in query this should be

$d = mysql_query("select * from `table_name` limit 10");

Remove outer loop

while($e = mysql_fetch_array($d)){
     echo $e['name_field'];
}

EDIT

You might want the result to be shown 10 times. Just put the query inside the outer while loop.

$b = 0;
while($b < 10)
{
      $d = mysql_query("select * from `table_name`");
      while($e = mysql_fetch_array($d))
      {
        echo $e['name_field'];
      }
      $b++;
}

Answer 4

$d = mysql_query("select *from `table_name` LIMIT 10");  // use back-ticks and limit in query

while($e = mysql_fetch_array($d)){
     echo $e['name_field'];
}

Answer 5

If you mean that you want to output 'name_field' for the first 9 rows (1..<10), you would use:

$d = mysql_query("SELECT * FROM `table_name` LIMIT 9");
while ($e = mysql_fetch_array($d)) {
    echo $e['name_field'];
}

If you, however, want to output 'name_field' for all rows 9 times (1..<10) in a loop construction, you only need to add the following two lines in the end of the loop:

    mysql_data_seek($d, 0);
    $b++;

The resulting code would be:

$b = 1;
$d = mysql_query("SELECT * FROM `table_name` LIMIT 9");
while ($b < 10) {
    while ($e = mysql_fetch_array($d)) {
        echo $e['name_field'];
    }
    mysql_data_seek($d, 0);
    $b++;
}