将mysql结果推入php数组并打印该数组

Question

So I am trying to make a code that gets an input and then starts comparing all values of this input with every other value of the other values in the database. To do this i want to put every row in an array an then compare this array to the value of the input. Now my problem is that i cannot get an entire row into an array the code that has the problem is.

 $row = array();
 for ($i = 1; $i <= 10; $i++) {
$autorange2="SELECT AutoRange  FROM $tbl_name WHERE Nr='$i'";
$auto2=mysql_query($autorange, 0);
array_push($row, "$auto2");
}
print_r($row);

and my result is

Array ( [0] => Resource id #6 [1] => Resource id #7 [2] => Resource id #8 [3] =>  
Resource id #9 [4] => Resource id #10 [5] => Resource id #11 [6] 
=> Resource id #12 [7] => Resource id #13 [8] => Resource id #14 [9] => 
Resource id #15 )

(the print is for testing purposes)

Answer 1

Use mysql_fetch_array . Try this-

for ($i = 1; $i <= 10; $i++) {
   $autorange2="SELECT AutoRange  FROM $tbl_name WHERE Nr='$i'";
   $auto2=mysql_query($autorange, 0);
   while($row1 = mysql_fetch_array($auto2))
   {
       array_push($row, $row1);
   }
}

And if you are sure that there will only be 1 row in the query result-

for ($i = 1; $i <= 10; $i++) {
   $autorange2="SELECT AutoRange  FROM $tbl_name WHERE Nr='$i'";
   $auto2=mysql_query($autorange, 0);
   array_push($row, mysql_fetch_assoc($auto2));
}

Answer 2

You tried to outut $row — result set. You can't output result set, you have to fetch it firstly.

Use mysql_fetch_assoc function for it.

$row = array();
for ($i = 1; $i <= 10; $i++) {
 $autorange2="SELECT AutoRange  FROM $tbl_name WHERE Nr='$i'";
 $auto2=mysql_query($autorange); // <-- I removed 2nd parameter, you don't need it there
 while($data = mysql_fetch_assoc($auto2)) {
  $row[] = $data; // same as array_push($row, $data);
  // $data['AutoRange']; <-- get access to data on this row
 }
 print_r($row);
}

If you want to directly access to some entry in set, use $data['fieldName'] where fieldName is name of field you want to acess.

mysql_fetch_assoc return associated array.

Note : if you will use method from this answer you have to know, that mysql_fetch_array returns indexed array, so you have to get access to data with $data[0] , $data[1] etc. I think better to use mysql_fetch_assoc function and work with associative array.

Another note : what for you use such approach to work with database? You don't need for loop to get data from table. Data, returned in resultset, depending on your query.

This query will return all rows from table $tbl_name :

SELECT AutoRange  FROM $tbl_name

So your code will be:

$rows = array();
$autorange2="SELECT AutoRange  FROM $tbl_name WHERE Nr='$i'";
$auto2=mysql_query($autorange); // <-- I removed 2nd parameter, you don't need it there
while($data = mysql_fetch_assoc($auto2)) {
 $rows[] = $data; // same as array_push($row, $data);
 // $data['AutoRange']; <-- get access to data on this row
}
print_r($rows);

Now you have values of autorange field of each row from $tbl_name table.

How you get access to this data:

foreach($row in $rows) {
 $autoRange = $row['AutoRange'];
 var_dump($autoRange);
}